2011 GMC Sierra 2500HD

What owners should know

Covers 2011–2014 · 6.6L Duramax LML diesel and 6.0L V8 gas · Updated 2026-10-01

Researched from owner forums and NHTSA complaints and written by Know Your Truck. These are patterns in what owners report, not a guarantee about any particular truck.

Common failures & how to fix them

Parts and video buttons search for your 2011 GMC Sierra 2500HD. Always confirm a part fits using your VIN. Brakes, steering, fuel and airbag work affects your safety, so if you're not sure, have a qualified mechanic do it.

• Duramax LML fuel pump (CP4) failure

  Best left to a shop

  Signs: Sudden stalling or no-start, low fuel pressure codes such as P0087.

  Fix: Prevention: change the fuel filter on schedule and buy fuel from busy stations. Some owners replace the CP4 with a different pump design as prevention. A failed pump usually means a full fuel system replacement at a diesel shop.

  Shop: Duramax fuel filterShop: Duramax CP3 conversion kit▶ How-to videos

• DEF heater and NOx sensor problems

  Moderate DIY

  Signs: 'Poor DEF quality' or reduced power messages, check engine light.

  Fix: Scan for codes. Common fixes are a NOx sensor or the DEF heater and tank assembly.

  Shop: Duramax NOx sensorShop: Duramax DEF heater▶ How-to videos

• Worn idler arm and pitman arm

  Moderate DIY

  Signs: Loose, wandering steering, clunks, play in the steering wheel.

  Fix: Replace the idler arm and pitman arm, and check tie rods. Many owners add an idler arm support brace. Get an alignment afterward.

  Shop: idler armShop: pitman armShop: idler arm support kit▶ How-to videos

• Cracked dashboard

  Easy DIY

  Signs: Cracks across the dash top, especially near the passenger airbag.

  Fix: Cover it with a molded dash cover or replace the dash pad. Make sure a cover doesn't block the airbag.

  Shop: dash cover▶ How-to videos

Recalls

A recall doesn't mean a truck still has the problem. Enter the truck's VIN at nhtsa.gov/recalls or ask a dealer to see whether the repair was done.

• Air Bags:Frontal:Passenger Side:Inflator Module

  Feb 2021 · #21V054000

  General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally GM is recalling certain 2011-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, Yukon XL and 2011-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." Additionally, GM is recalling certain 2010-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL and 2010-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MT, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI, and WY or "Zone C." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

  Risk and fix

  Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

  Fix: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 25, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed to 40 VIN owners on May 11, 2021. A second owner notification letter was mailed to all other owners on January 24, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328800.

• Air Bags:Frontal:Passenger Side:Inflator Module

  Feb 2021 · #21V050000

  General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL, and 2009-2011 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500 and Sierra 3500 vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

  Risk and fix

  Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

  Fix: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 22, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on March 1, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328760.

• Equipment

  Apr 2018 · #18V267000

  General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana vehicles, equipped with certain Plastic-Handle Fire Extinguishers or Push Button 'Pindicator' Fire Extinguishers. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf

  Risk and fix

  Risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

  Fix: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Isuzu customer service at 1-866-441-9638. GM's number for this recall is 18146.

• Electrical System

  Jul 2014 · #14V407000

  General Motors LLC (GM) is recalling certain model year 2007-2011 Chevrolet Silverado HD 2500/3500 trucks manufactured January 18, 2007, to June 22, 2011, and GMC Sierra HD 2500/3500 trucks manufactured January 22, 2007, to June 21, 2011, and equipped with an auxiliary battery. Owners may unknowingly draw too much current through the vehicle's trailer harness resulting in the melting of fusible link for the auxiliary battery.

  Risk and fix

  Risk: If the fusible link melts it may come into contact with adjacent components, damage the electrical center cover, the nearby wiring harness conduit and other vehicle components, increasing the risk of a fire.

  Fix: GM will notify owners and dealers will replace the jumper harness with one that includes a 40 amp inline fuse, and provide the owner with supplemental Owner Manual information, free of charge. The recall began on August 29, 2014. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 14260.

Owner complaints by area

Reports owners filed with NHTSA. They aren't verified, and one complaint can mention more than one area. Tap an area to read the most recent ones.

• Air Bags30

  2 involved a crash

  • Filed Mar 2022

    2011 GMC SIERRA. CONSUMER WRITES IN REGARDS TO PASSENGER SIDE FRONTAL AIRBAG SAFETY RECALL. THE CONSUMER STATED THE DEALER HAS NOT BEEN PROVIDED THE NECESSARY PARTS TO REPAIR THE VEHICLE. *JS

  • Filed May 2021

    TL* TAKATA RECALL. THE CONTACT OWNS A 2011 GMC SIERRA 2500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V054000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. CAPPELLINO BUICK GMC (5411 TRANSIT RD, BUFFALO, NY 14221, (716) 650-4471) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

  • Filed Apr 2021

    NO DEALER CAN REPAIR MY TAKATA AIR BAG DUE TO GM NOT HAVING A REPLACEMENT PART AVAILABLE. I AM CONCERNED THAT NHTSA AND GM ARE NOT CONCERNED FOR MY LIFE BY HAVING THIS ISSUE OPEN FOR SO LONG AND ANSWER TO THE MANDATED REPAIRS. I WILL FOLLOW UP WITH MY CONGRESSMAN AND SENATORS. I AM AFRAID WHEN I HAVE TO DRIVE AND DON'T HAVE OTHER OPTIONS FOR WORK.

  • Filed Mar 2021

    TL* TAKATA RECALL. THE CONTACT OWNS A 2011 GMC SIERRA 2500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V050000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT SPOKE TO WEST POINT BUICK GMC (16835 KATY FWY, HOUSTON, TX 77094, (281) 406-3550) WHERE IT WAS CONFIRMED THAT THE PART WAS YET NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

  • Filed Dec 2020

    TO AVOID A HEAD ON COLLISION I HAD TO MOVE TO THE RIGHT OF MY LANE AND I HIT A MOUNTAIN HEAD ON AND NEITHER THE DRIVER OR PASSENGERS AIRBAG DEPLOYED. THE VEHICLE OVER TURNED ON ITS LEFT DRIVER SIDE AFTER SKIDDING ALONG PAVEMENT FOR A FEW YARDS IT FINALLY CAME TO A STOP. THERE WERE NO PASSENGERS. I WAS THE DRIVER AND SUSTAINED LACERATIONS TO MY HEAD BRUISING IN CHEST AREA AND A PUNCTURED LEFT LUNG. THE VEHICLE WAS IN MOTION GOING 35 MPH

  • Showing the 5 most recent of 30.
• Unknown or Other19

  • Filed May 2025

    Dash board is cracking in various places even after being repaired. Concerned that it could disintegrate sending plastic pieces flying in an accident or air bag deployment.

  • Filed Aug 2017

    DASH IS CRACKING AND IT'S ON THE PASSENGER AIRBAG.

  • Filed Jul 2017

    TAKATA RECALL, I HAVE A LETTER FROM GM. CONCERNING THE AIR BAG RECALL DATED 07/2016 INFORMING ME OF SAID RECALL AND STATING THAT I WOULD BE NOTIFIED WHEN PARTS ARE AVAILABLE FOR REPAIRS. THAT HAS BEEN OVER A YEAR AGO AND NOW I HAVE A CRACK IN THE CORNER OF THE DASH PANEL WHERE THE AIR-BAG IS LOCATED. AFTER DOING SOME RESEARCH IT APPEARS THAT GM. HAS ISSUES WITH GM TRUCKS, SUV'S ETC. FROM YEAR 2007 UNTIL AT LEAST 2013 CONCERNING THIS ISSUE. I HAVE CONTACTED GM. DEALERS AND GM THEIR SELF CONCERNING REPAIRS AND OR REPLACEMENT OF THE AIRBAGS AND STATED MY CONCERNS WITH THE DASH BEING CRACKED IN THIS LOCATION. THESE AIRBAGS HAVE BEEN DOCUMENTED TO KILL OR INJURE PEOPLE AND AS A CONCERNED OWNER OF ONE OF THESE VEHICLES I FEEL GM. IS NOT MOVING FAST ENOUGH TO RECTIFY THIS SITUATION. THERE ARE MILLIONS OF THESE VEHICLES AFFECTED BY THIS RECALL ON THE ROAD EVERY DAY AND THAT LEADS TO GREATER RISK OF DEATH OR INJURY. I SHOULD NOT HAVE TO GET RID OF MY VEHICLE BECAUSE OF SAFETY CONCERNS BY THE MANUFACTURER. THANKS IN ADVANCE FOR ANY ASSISTANCE IN THIS MATTER.

  • Filed Apr 2017

    CRACKED PASSENGER SIDE DASHBOARD ABOVE AIRBAG. NOTHING WAS DONE BY OWNER TO MAKE THIS HAPPEN. IT IS A KNOWN GM PROBLEM THEY REFUSE TO RECALL.

  • Filed Feb 2017

    THERE IS A CRACK IN THE DASHBOARD NEAR THE PASSENGER AIGBAG. IT'S CONCERNING THAT IT'S SO CLOSE TO THE AIRBAG AND SEEMS TO BE A SAFETY CONCERN. NOT SURE HOW LONG IT'S BEEN THERE. I JUST NOTICED IT THIS WEEK.

  • Showing the 5 most recent of 19.
• Structure19

  • Filed Aug 2024

    The contact called on behalf of a Fire Department that owns a 2011 GMC Sierra 2500. The contact stated that while the Fire Department technician was performing a routine maintenance on the vehicle, the technician became aware that the sub frame was rusted with a hole in the sub frame. The vehicle was taken to the dealer, where it was determined that the sub frame needed to be replaced. The vehicle was not repaired. The contact related the failure to TSB Number: 19-NA-255. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 29,252.

  • Filed Aug 2022

    Dash is cracked in multiple spots making it a safety concern when airbag is deployed.

  • Filed Jul 2021

    Unlocked driver door will not open from the inside and trapping the occupant.

  • Filed Oct 2020

    TRUCK FRAME AND UNDER BODY HAVE EXCESSIVE RUST

  • Filed Jul 2020

    MY DASHBOARD CRACKED BY THE PASSENGER SIDE AIRBAG ABOUT A YEAR AGO AND NOW IT IS CRACKING ABOVE THE GAUGE PANEL. IT CRACKED THE FIRST TIME WHEN I GOT IN IT AND STARTED HOME FROM WORK.THE SECOND CRACK ABOVE THE GAUGE PANEL I HAD JUST NOTICED A WEEK AGO.

  • Showing the 5 most recent of 19.
• Electrical System12

  1 involved a fire

  • Filed May 2025

    Vehicle is remotely being hacked into by [XXX] and buddy's, there are many people connected just do your job and ypu find all the evidence for which you need INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

  • Filed Sep 2023

    On or about [XXX], the Transmission Control Module, FAILED, on my 2011GMC Denali 2500 6.6 diesel. It was a KNOWN faulty part .General Motors was aware of the issue years ago. This part should have been deemed a Safety Recall item. Imagine, pulling a trailer down a busy Freeway, with Semi's presence. Module goes out, truck goes idle, people hurt or worse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

  • Filed Apr 2022

    My ABS and traction control and stabiltrak and service trailer break system keep going on and off its the most distracting thing i have a video of the chime not stopping. My water in fuel sensor won't go off I have un plugged it and changed it and the filter and when I unplug it it stays On

  • Filed Jan 2022

    The contact owns a 2011 GMC Sierra 2500. The contact stated that while starting the vehicle, the vehicle remained in the PARK and failed to shift into DRIVE. The steering wheel was locked preventing the gear shifter from going into gear. The traction control warning light was flashing. The vehicle was taken to the local dealer but, was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 190,000. The VIN was not available.

  • Filed Feb 2021

    THE VEHICLE ABRUPTLY CAUGHT FIRE WHILE DRIVING ON FEBRUARY 20TH 2021. THE REASON REMAINS UNKNOWN. PLEASE SEE ATTACHED IMAGES.

  • Showing the 5 most recent of 12.
• Power Train12

  • Filed Sep 2023

    On or about [XXX], the Transmission Control Module, FAILED, on my 2011GMC Denali 2500 6.6 diesel. It was a KNOWN faulty part .General Motors was aware of the issue years ago. This part should have been deemed a Safety Recall item. Imagine, pulling a trailer down a busy Freeway, with Semi's presence. Module goes out, truck goes idle, people hurt or worse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

  • Filed Sep 2023

    When vehicle is warm and shut off, upon restart it will not go in to any gear, there was no warning lamps. An independent repair facility determined the Transmission Control Module was defective. General Motors has no parts available, and I know fro a fact it is a rather large issue.

  • Filed Sep 2023

    TCM failed. Couldn’t find the parts required. Truck sat 700 miles away from me for four weeks. Had to have part repaired in hopes it worked. As of now I still have some issues but would not have the truck at all if I had to wait for a part

  • Filed Apr 2023

    Transmission control module put my truck in limp mode while drinking down the highway.

  • Filed Jan 2022

    The contact owns a 2011 GMC Sierra 2500. The contact stated that while starting the vehicle, the vehicle remained in the PARK and failed to shift into DRIVE. The steering wheel was locked preventing the gear shifter from going into gear. The traction control warning light was flashing. The vehicle was taken to the local dealer but, was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 190,000. The VIN was not available.

  • Showing the 5 most recent of 12.
• Engine12

  1 involved a fire

  • Filed Feb 2021

    THE VEHICLE ABRUPTLY CAUGHT FIRE WHILE DRIVING ON FEBRUARY 20TH 2021. THE REASON REMAINS UNKNOWN. PLEASE SEE ATTACHED IMAGES.

  • Filed Oct 2018

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE STALLED AND THE CHECK ENGINE AND EXHAUST GAS RECIRCULATION WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL FILTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE PERSISTED. THE VEHICLE WAS TAKEN TO RANZ MOTOR CO (1401 W BEECH ST, CHANUTE, KS 66720) WHERE THE FUEL FILTER HOUSING AND HIGH PRESSURE FUEL PUMP WERE REPLACED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO ANOTHER INDEPENDENT MECHANIC WHERE THEY INFORMED THE CONTACT THAT THE FUEL INJECTORS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 220,000.

  • Filed Jun 2018

    DEF LIGHT CAME ON AND THE DISPLAY SAYING SERVICE EXHAUST FUEL SYSTEM AND REFER TO MANUAL. THAT GAVE ME NOTHING. THE CODES THAT CAME UP IS P2209 AND P20B9. SO THE HEATER IN THE DEF TANK IS BROKEN AND THE NOX READING IS WRONG OR HAS GONE OUT. THEN MY SPEED WAS REDUCED TO MAX 55 MPH. DEALER SAID IT WOULD BE $1500 TO FIX BUT AFTER READING FORUMS ON-LINE THERE HAVE BEEN A LOT IS ISSUES WITH THE DEF SYSTEM, FIXING IT, AND THEN STILL DISPLAYS ISSUE. AM I GOING TO GET THIS REPAIRED AND STILL HAVE AN ISSUE LIKE OTHERS?

  • Filed Dec 2017

    MY 2011 GMC DURAMAX DISPLAYS CODES (P0676), (P2493), (P122D0 AND (P140A) RELATED TO THE EGR AND THROTTLE BODY. I LOCATED SPECIAL WARRANTY WORK #14353. I AM TOLD BY GM CUSTOMER CARE THAT MY PARTICULAR VIN IS NOT INCLUDED IN THE DURAMAX DIESEL WARRANTY ISSUE. I LOCATED THE FOLLOWING: 02/03/17NHTSA ID: 10090458 TSB ID: 14353 14353 - SPECIAL COVERAGE. ON SOME VEHICLES, THE SERVICE ENGINE SOON LIGHT MAY ILLUMINATE DUE TO AN INOPERATIVE EXHAUST GAS RECIRCULATION (EGR) COOLER BYPASS VALVE. DEALERS ARE TO REPLACE THE EGR COOLER BYPASS VALVE. WHERE DO I STAND IN GETTING GENERAL MOTORS TO HONOR THE WARRANTY?

  • Filed Dec 2016

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE EXHAUST FLUID AND THE CHECK ENGINE WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THERE WAS KEROSENE MIXED IN WITH THE DIESEL FUEL. THE CONTACT STATED THAT THE FUEL WAS DRAINED FROM THE FUEL TANK AND NEW FUEL WAS ADDED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 28,028.

  • Showing the 5 most recent of 12.
• Vehicle Speed Control7

  • Filed Sep 2025

    Vehicle is being remotely hacked and placed into regen Parts have been swapped and truck has been tampered with and continues to be tampered with

  • Filed Sep 2023

    On or about [XXX], the Transmission Control Module, FAILED, on my 2011GMC Denali 2500 6.6 diesel. It was a KNOWN faulty part .General Motors was aware of the issue years ago. This part should have been deemed a Safety Recall item. Imagine, pulling a trailer down a busy Freeway, with Semi's presence. Module goes out, truck goes idle, people hurt or worse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

  • Filed Jan 2016

    THE TBS GOES OUT. PUTTING THE TRUCK INTO REDUCED POWER. I WAS GOING 65 MPH AND THE TRUCK SLOWED DOWN TO 15 MPH ON THE FREEWAY. LOSE ALL BREAKS CONTROL , ABS GOES OUT TO. ALMOST HAVE BEEN DUE TO GM

  • Filed Jun 2014

    AFTER APPLYING BRAKE TO SLOW DOWN TO < 5 MPH (NOT COMING TO A HALT) AND THEN TRYING TO ACCELERATE, VEHICLE BECOMES UNRESPONSIVE FOR 1 TO 2 SECONDS; IT FEELS LIKE THE TRANSMISSION GOES INTO NEUTRAL DURING THE BRAKING PERIOD AND WHEN GAS PEDAL IS APPLIED, THERE IS A 1 - 2 SECOND TIME PERIOD WHERE VEHICLE IS TRYING TO FIGURE OUT SOMETHING AND PREVENTS ANY ACCELERATION. WHY IS THIS DANGEROUS? I FOUND MYSELF IN A LEFT TURN ONLY LANE/GREEN LIGHT WITH OPPOSING TRAFFIC, AND I ATTEMPTED THE LEFT TURN WITH ONCOMING TRAFFIC BECAUSE I THOUGHT THAT I HAD AMPLE TIME BUT THE VEHICLE JUST SAT THERE FOR 1 - 2 SECONDS, AND WITH THAT I FOUND MYSELF IN A DANGEROUS PREDICAMENT BECAUSE THE ONCOMING TRAFFIC WAS GETTING VERY CLOSE. IF THE VEHICLE HAD RESPONDED WHEN I NEEDED IT TO, IT WOULD NOT HAVE BEEN A CLOSE CALL. THIS BEHAVIOR WITH THE VEHICLE CAN BE REPRODUCED AT WILL, EVERY TIME. THERE ARE MANY FORUMS ON THE INTERNET WHERE MANY PEOPLE ARE COMPLAINING ABOUT THIS SAME ISSUE WITH THE DRIVE-TRAIN, GMC KNOWS ABOUT IT, BUT REFUSES TO DO ANYTHING ABOUT IT. *TR

  • Filed Mar 2014

    WHILE DRIVING ON INTERSTATE THE ENGINE SHUT DOWN TO 1/2 POWER AND BEGAN TO SHAKE/VIBRATE. THE TOP SPEED THEN WAS ABOUT 40MPH. I FINALLY PULLED OVER AND READ MANUAL ON HOW TO RESET IT. IT WORKED PROPERLY THEN. THIS HAS HAPPENED 4 OTHER TIMES. THE LATEST INCIDENT HAPPENED YESTERDAY, WITH OUT USING CRUISE CONTROL. TRAVELING AT 30 MPH IT SHUT ME DOWN AGAIN . ONE OF THE SCARIEST TIMES , I WAS TRAVELING IN 5 LANES OF TRAFFIC AND IT SHUT ME DOWN TO HALF POWER AND IT WAS QUITE DANGEROUS FOR US TO TRY AND MERGE OUT OF THE WAY AND GET OFF TO A SAFE SPOT ON SIDE OF INTERSTATE. I CALLED THE DEALER AND THEY TOLD ME THERE HAS NOT BEEN A RECALL ON THIS ISSUE, BUT IT SEEMS VERY MUCH LIKE A SAFETY ISSUE WITH ME. THE DEALER ALSO TOLD ME AS WELL AS OTHER AUTO SPECIALIST IS THAT THIS IS A COMMON PROBLEM WITH THIS MODEL OF VEHICLE AND THAT IT WILL COST ABOUT 700 DOLLARS TO REPLACE THE THROTTLE CABLE ASSEMBLY. *TR

  • Showing the 5 most recent of 7.
• Service Brakes5

  • Filed Apr 2022

    My ABS and traction control and stabiltrak and service trailer break system keep going on and off its the most distracting thing i have a video of the chime not stopping. My water in fuel sensor won't go off I have un plugged it and changed it and the filter and when I unplug it it stays On

  • Filed Aug 2015

    FIRST OFF WOULD BE MY DASHBOARD AIR BAG, THE DASHBOARD PLASTIC IS CRACKING WITH THE CONCERN ON FLYING DEBRIS I BROUGHT MY GMC 1500 INTO MY LOCAL SERVICE/SALES CENTER AND HE TOLD ME WITH OUT A RECALL THERE IS NOTHING HE COULD DO FOR ME. SECOND I HAVE BEEN DEALING WITH WHAT SEEMS TO EITHER THE POWER TRAIN OR BRAKES FROM DAY ONE I PURCHASED MY TRUCK. WHAT IT DOES IS WHEN I COME TO A COMPLETE STOP, RELEASE THE BRAKE, AND THEN APPLY THE ACCELERATOR I GET A BIG CUR PLUNK SOUND AND FEELING OF THE TRUCK JERK. THIS IS COMING FOR THE REAR END OF MY TRUCK I WOULD ASSUME THE REAR AXIAL. I HAVE BROUGHT THIS UP TO MY LOCAL SERVICE/SALES CENTER , MULTIPLE TIMES. HE HAS NOT STOPPED THE PROBLEM AND TELLS ME THERE IS NOT MUCH MORE HE CAN DO WITHOUT THE MANUFACTURER POSTING A BULLETIN OUT.

  • Filed Feb 2014

    THIS IS THE POINT AT WHICH I DISCOVERED THAT I HAVE BAD TIRES. THE TIRES HAVE BE COME BADLY CHIPPED AND PIECES OF RUBBER TREAD BEGAN COMING FROM TREAD AREA. THE SIDEWALLS DISCOLORED AND BEGAN CRACKING. THE TIRES STARTED TO LOOSE AIR AND HAD TO BE REINFLATTED ALL THE TIME TO PRESENT. TIRE HAS SAME SYMPTOMS AS RE-CALLED TIRES BUT MICHELIN AND GM WOULD DO NOTHING TO HELP. *TR

  • Filed May 2012

    PURCHASED TRUCK 11/10/2011 WITH 3 MILES ON IT. AT 4,000 MILES THE TRUCKS BRAKES STARTED PULSATING AND SHIMMING WHILE APPLING BRAKES GOING DOWN HILL. TOOK IT TO DEALER , THEY RESURFACED FRONT ROTORS. GOOD TILL 5,700 MILES AND IT STARTED DOING THIS AGAIN, BUT WORSE, ALSO PROBLEMS JUST BRAKING ANY WHERE. TOOK BACK TO DEALER, NOW THEY RESURFACED REAR DRUMS. I'M VERY DISAPPOINTED IN THIS NEW VEHICLE'S BRAKING SYSTEM. THEY WROTE THE BRAKES WERE WARPED DURING BOTH VISITS, AND NO REASON AS TO WHY THIS IS HAPPENING TO MY NEW VEHICLE. *TT

  • Filed Apr 2012

    THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHECKED OUT NORMAL. DEALER REPLACED BRAKE SWITCH WITH NEW PART WITH NO CHANGE. GENERAL MOTORS REFERENCED SERVICE BULLETIN #02-06-03-008D AND CLAIM THE TRUCK IS OPERATING AS DESIGNED. AFTER SEVERAL CONVERSATIONS WITH GM CUSTOMER SERVICE THEY TOLD ME THERE WAS NOTHING THEY WOULD DO ABOUT THE DESIGN OF THE SYSTEM AND I AM STUCK WITH THE TRUCK AS IS. THE GM SERVICE REPRESENTATIVE ALSO REFUSED TO SEND ME ANY DOCUMENTATION REGARDING MY CUSTOMER CLAIM AND DIRECTED ME BACK TO THE SERVICE BULLETIN AND THE DEALER. I HAVE INVESTED A LOT OF MONEY INTO THIS VEHICLE AND HAVE NO CONFIDENCE IN ITS SAFETY AT NIGHT. MY GM CUSTOMER CLAIM #[XXX]. THIS TRUCK WAS PURCHASED NEW AND I WOULD NOT ALLOW MY FAMILY TO OPERATE IT AT NIGHT AND I AM VERY CONCERNED ABOUT THE LIGHT SYSTEM FAILING OR SHORTING OUT AS THE VEHICLE GETS OLDER. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

• Steering4

  • Filed Sep 2025

    Vehicle is being remotely hacked and placed into regen Parts have been swapped and truck has been tampered with and continues to be tampered with

  • Filed Dec 2017

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. THE CONTACT WAS DRIVING AT APPROXIMATELY 35 MPH WHILE MAKING A RIGHT TURN, WHEN THE STEERING WHEEL SEIZED AND SUDDENLY FUNCTIONED AS NORMAL. THE FAILURE HAD OCCURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO A LOCAL DEALERSHIP: MEDVED CHEVROLET BUICK GMC 1506 S WILCOX ST, CASTLE ROCK, CO 80104 WHERE THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 39,499.

  • Filed Jul 2015

    TL* THE CONTACT OWNS A 2011 GMC SIERRA. WHILE DRIVING APPROXIMATELY 35 MPH, THE STEERING WHEEL SEIZED AND VEERED TO THE LEFT INDEPENDENTLY. THE CONTACT WAS ABLE TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER, BUT THE FAILURE COULD NOT BE DUPLICATED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 54,000.

  • Filed Mar 2011

    TL*THE CONTACT OWNS A 2011 GMC SIERRA 2500 HD. WHILE DRIVING APPROXIMATELY 35 MPH, THE CONTACT FELT AN ABNORMAL VIBRATION IN THE STEERING WHEEL WHICH OCCURRED SPORADICALLY. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIANS WERE UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 200.

• Tires4

  • Filed Mar 2025

    The contact owns a 2011 GMC Sierra equipped with Nitto tires, Tire line: N/A, Tire size: 285/55r20, DOT number: 73BM, and Nitto tire Tire line: Ridge Grappler Tire size: 285/55r20 and DOT number 73 BM The contact stated that while driving at an undisclosed speed the contact noticed the vehicle would vibrate. An independent was made aware of the failure and informed the contact that the tire failed due to the lump found on the front driver's tire. The tire was replaced. The contact stated the failure recurred. The contact inspected the tire and the rear passenger tire also experienced the same failure. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 265, 000 and tire failure mileage was not included.

  • Filed Sep 2021

    While traveling at 65 mph the vehicle began to Vibrate and suddenly the tread separated and began banging against the side of the vehicle LT265/60R20E. I feel fortunate this was a rear tire and I was able to safely bring the vehicle to a stop. The tires were installed at 35333 miles so they only had about 26000 miles and are rated to 60000 miles.

  • Filed Apr 2015

    WE PURCHASED A 2011 GMC 2500 HD NEW TRUCK. WE HAD A TIRE SEPARATE ON 4/2/2012 AT 1232 MILES. WE HAD ANOTHER TIRE SEPARATE ON 3/30/2015 AT 16,112 MILES. *TR

  • Filed Aug 2014

    THREE OUT OF FOUR TIRES HAD SEPARATION. THE TIRES ARE GOODYEAR WRANGLERLT265/ 60R20E1. TWO TIRES WERE REPLACED ON 2/21/2014 DUE TO SEPARATION OF LEFT REAR TIRE. WE CHOSE TO REPLACE BOTH REAR TIRES. ON A RECENT VACATION TO FLORIDA FROM TEXAS, THE FRONT LEFT TIRE, SAME GOODYEAR TYPE TIRE, SEPARATED. OUR SPARE REPLACED THE FRONT LEFT TIRE. ON THE RETURN TRIP FROM FLORIDA BACK TO TEXAS (SAME VACATION), THE FRONT RIGHT TIRE BEGAN SEPARATING WHEN WE WERE ON THE EAST SIDE OF LOUISIANA. WE WERE UNABLE TO LOCATE AN OPEN TIRE STORE, AS IT WAS A SUNDAY. SO, WE DROVE HOME SLOWLY THE REMAINDER OF THE TRIP. AFTER RETURNING HOME, DISCOUNT TIRES (WHERE WE PURCHASED THE TWO NEW REAR TIRES IN FEB. 2014) ORDERED US TWO NEW FRONT TIRES. THE TIRES WERE SHIPPED FROM CHICAGO, DUE TO THE UNUSUAL SIZE OF THE TIRE (WE WERE TOLD). IS THE GOODYEAR WRANGLER TIRE A SAFETY HAZARD, SINCE THREE OUT OF THE FOUR TIRES FAILED? WAS IT THE 'LOT' THAT WAS BAD? WE WERE TOLD BY DISCOUNT TIRES THAT THERE WASN'T A RECALL ON THIS TIRE. *TR

• Fuel/Propulsion System4

  • Filed Apr 2022

    On 4/12/22, we were towing our 32ft trailer with putt 2011 diesel GMC Sierra truck to Big Bear Lake which is in the San Bernardino Mountains in a two way winding highway. Upon making a somewhat sharp turn up a steep uphill, our accelerator went out. We had my mother in law, our two kids and dog in the vehicle at the time. We were able to get a speed of about 5-10mph to get a turn out and turn back around. We had no reception to call for help. The accelerator gave out shortly after but we were able to ride the decline to the bottom of the mountain and as soon as we were getting to the bottom, the engine turned off on us. Although it was still a two way highway, thankfully there was an emergency lane where we were able to park and where we were able to get very limited reception to call AAA (tow truck). There were vehicle speeding past us in high rates of speed. Because we needed a specialty tow truck given the towing of the truck/trailer, we knew it would take quite a while in the mountains for a driver to get to us. Temperatures at night in this area can get to 10-20 degrees. Five hours later at 11pm we were towed home. Upon towing the truck and trailer home, we were made aware of the reason the truck broke down through a diesel mechanic, which was CP4 fuel pump failure. Upon learning this and going online, we found out this is common for this truck with the CP4 fuel pump. We also found that other companies have made recalls, eg. Dodge but GMC/Chevy has not. This is obviously a safety issue that could have been catastrophic for myself, my kids and family and am wondering why there hasn’t already been a recall through GMC. Please let me know what our recourse is or if you have any questions.

  • Filed Oct 2018

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE STALLED AND THE CHECK ENGINE AND EXHAUST GAS RECIRCULATION WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL FILTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE PERSISTED. THE VEHICLE WAS TAKEN TO RANZ MOTOR CO (1401 W BEECH ST, CHANUTE, KS 66720) WHERE THE FUEL FILTER HOUSING AND HIGH PRESSURE FUEL PUMP WERE REPLACED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO ANOTHER INDEPENDENT MECHANIC WHERE THEY INFORMED THE CONTACT THAT THE FUEL INJECTORS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 220,000.

  • Filed Dec 2016

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE EXHAUST FLUID AND THE CHECK ENGINE WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THERE WAS KEROSENE MIXED IN WITH THE DIESEL FUEL. THE CONTACT STATED THAT THE FUEL WAS DRAINED FROM THE FUEL TANK AND NEW FUEL WAS ADDED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 28,028.

  • Filed Jan 2016

    THE TBS GOES OUT. PUTTING THE TRUCK INTO REDUCED POWER. I WAS GOING 65 MPH AND THE TRUCK SLOWED DOWN TO 15 MPH ON THE FREEWAY. LOSE ALL BREAKS CONTROL , ABS GOES OUT TO. ALMOST HAVE BEEN DUE TO GM

• Wheels4

  • Filed Aug 2017

    THREE OE (3) GOODYEAR WRANGLER TIRES, LT265/60 R20 HAVE BECOME DEFECTIVE, ALL IN THE SAME FASHION WITH SIDEWALL PROBLEMS, TWO WITH BULGING, ONE WITH AN AT SPEED BLOWOUT AT THE SIDEWALL. FIRST ONE, 1/22/16 WHILE DRIVING BUT STOPPED DUE TO HEAVY TRAFFIC AND ANOTHER MOTORIST POINTED OUT THE BULGE. INSTALLED SPARE, AT DESTINATION PURCHASED AT FULL PRICE 2 BRAND NEW TIRES IN ORDER TO HAVE MATCHING TREAD ON ALL TIRES. DEALER ALLEGED THERE MUST HAVE BEEN DAMAGE, SO THERE WAS NO WEAR ADJUSTMENT. SECOND ONE NOTED WHILE VEHICLE WAS PARKED IN MY DRIVEWAY 2/15/17. CALLED GOODYEAR WHO REFERRED ME TO A LOCAL FACTORY STORE WHO PRO-RATED AN ADJUSTMENT AND I REC'D A NEW TIRE. THIRD ONE BLEW OUT AT TURNPIKE SPEED 8/16/17. NONE OF THESE TIRES WERE ANYWHERE NEAR THE END OF TREAD LIFE AT THE TIME OF THE PROBLEM. THIS VEHICLE HAS NEVER BEEN "OFF-ROAD" AND I DO NOT DRIVE AROUND HITTING OBJECTS WITH THE TIRES. I DO NOT WANT TO TURN OVER THE LATEST DEFECTIVE TIRE TO A DEALER UNTIL I HEAR FROM YOU IF AN INVESTIGATION IS IN ORDER; IT IS "EVIDENCE". I DID TAKE PHOTOS OF THE FIRST TWO TIRES AND WILL DO THE SAME WITH THE MOST RECENT ONE. THANK YOU.

  • Filed Nov 2016

    ALL FOUR WHEELS HAVE DEVELOPED CRACKS OVER THE COURSE OF MY SIX YEAR OWNERSHIP OF THE VEHICLE. I HAVE SPOKEN WITH THE SERVICE DIRECTOR AT SIMPSON GMC OF BUENA PARK, CA, NUMEROUS TECHNICIANS AT SIMPSON GMC, SERVICE MANAGERS AT AMERICA'S TIRE OF VICTORVILLE, HESPERIA, AND FULLERTON, CA AND HAVE HIRED AN OUTSIDE ENGINEER THAT ALL AGREE THAT THERE IS A DEFECT IN DESIGN AND MANUFACTURING ON THE 20' DENALI HD WHEELS (RPO: PYS). I HAVE WELL DOCUMENTED INTERACTIONS WITH ALL PARTIES INVOLVED AND I INTEND TO PROVE THE DESIGN FLAW THAT EXISTS WITH THESE WHEELS. I AM ALSO IN CONTACT WITH THE MEDIA REGARDING THE LIFE THREATENING HAZARDOUS DESIGN THESE WHEELS POSE TO THE PUBLIC. GENERAL MOTORS HAS BEEN ADVISED NUMEROUS TIMES OF THE SAFETY HAZARD AND PROBLEMS WITH THESE WHEELS. PLEASE REFERENCE THE TWO LATEST EXECUTIVE OFFICE CASES 8-1552109660 AND 8-2402833027.

  • Filed Sep 2015

    I HAVE A 2011 GMC SIERRA 2500HD DENALI DIESEL 4X4 PICKUP TRUCK. AT 60,000 MILES ONE OF THE 20" ALUMINUM WHEELS FAILED WITH A LARGE CRACK ON THE BACKSIDE OF THE WHEEL. I PURCHASED A NEW WHEEL AND HAD AMERICA'S TIRE REMOUNT MY TIRE. AT 95,000 MILES THE SAME FAILURE HAPPENED, BUT ON A DIFFERENT WHEEL. THIS TIME THERE WERE TWO CRACKS IN THE WHEEL SEVERAL INCHES LONG. ON THIS FAILURE I NOTIFIED MY GMC DEALER, SIMPSON GMC IN BUENA PARK OF THE ISSUE. I REPLACED THIS WHEEL AGAIN WITH A NEW WHEEL. NOW AT 115,000 MILES I HAVE A THIRD 20" ALUMINUM WHEEL THAT HAS FAILED. THIS TIME THERE ARE FOUR CRACKS, 2 OF WHICH ARE OVER 1" LONG. I TOOK MY TRUCK INTO AMERICA'S TIRE AND MY GMC DEALER AND BOTH A TECHNICIAN AND THE SERVICE DIRECTOR AT SIMPSON GMC ARE SURPRISED THE WHEEL DIDN'T COME APART WHILE DRIVING. I HAVE ATTEMPTED TO WORK WITH MY GMC DEALER AS WELL AS GENERAL MOTORS CORPORATE TOWARDS A RESOLUTION OF THIS SAFETY ISSUE. I HAVE ASKED GM TO REPLACE AT LEAST THIS LATEST FAILED WHEEL AND INVESTIGATE THIS MATTER FURTHER. I CAN'T BE THE ONLY ONE WITH THIS ISSUE. GM HAS DENIED COVERING THE COST OF A NEW WHEEL AND HAS TWICE NOW IGNORED MY REQUESTS FOR AN INVESTIGATION. BECAUSE THIS IS A HUGE SAFETY ISSUE WHERE A FAILURE COULD ENDANGER MY LIFE, MY FAMILY'S LIFE, OR THE LIVES OF INNOCENT MOTORIST AROUND ME I MUST FILE A COMPLAINT AND ASK ONCE AGAIN THAT MY CONCERNS BE VALIDATED. I AM ASKING GM TO REPLACE ALL FOUR OF MY WHEELS WITH NEW WHEELS OF THE SAME KIND IF THEY CAN ASSURE ME THIS PROBLEM HAS BEEN FIXED, AND IF THAT IS NOT AN OPTION, I AM SEEKING GENERAL MOTORS COVER THE COSTS OF FOUR AFTERMARKET WHEELS. IF NO RESOLUTION COMES FROM THIS COMPLAINT I WILL FILE ADDITIONAL COMPLAINTS WITH GENERAL MOTORS, THE BUREAU OF AUTOMOTIVE REPAIR, THE BBB, THE ATTORNEY GENERAL, AND FINALLY WITH MY LEGAL COUNSEL.

  • Filed Feb 2014

    THIS IS THE POINT AT WHICH I DISCOVERED THAT I HAVE BAD TIRES. THE TIRES HAVE BE COME BADLY CHIPPED AND PIECES OF RUBBER TREAD BEGAN COMING FROM TREAD AREA. THE SIDEWALLS DISCOLORED AND BEGAN CRACKING. THE TIRES STARTED TO LOOSE AIR AND HAD TO BE REINFLATTED ALL THE TIME TO PRESENT. TIRE HAS SAME SYMPTOMS AS RE-CALLED TIRES BUT MICHELIN AND GM WOULD DO NOTHING TO HELP. *TR

• Electronic Stability Control (esc)4

  • Filed Jan 2016

    DASHBOARD HAS CRACKED AT THE AIR BAG. LIFTERS HAD TO BE REPLACED AND NOW THE CAMSHAFT IS MAKING NOISES. MY TRACTION CONTROL KEEPS SHUTTING ITSELF OFF AND TELLING ME TO SERVICE IT. REALLY BAD WIND NOISE COMING FROM THE PASSENGER PILLAR.

  • Filed Mar 2015

    I WAS SITTING IN A PARKING LOT WITH MY TRUCK RUNNING, I NOTICED MY RPM'S WERE STARTING TO FLUTTER AND MY OIL PRESSURE WAS DOING THE SAME. AFTER A FEW MINUTES OR SO MY TRUCK STARTED SHAKING AND THE RPM'S WERE STILL FLUTTERING. WHILE THIS HAPPENED MY CHECK ENGINE LIGHT CAME ON AND IT FLASHED "ENGINE POWER REDUCED" "SERVICE TRACTION" AND THEN "SERVICE STABILITRAK." I THEN SHUT MY TRUCK OFF AND WAITED APPROX. 25 MINUTES. WHEN I TURNED MY TRUCK BACK ON THE RPM'S WERE STILL FLUTTERING BUT THE TRUCK WAS NO LONGER SHAKING. I TOOK MY TRUCK TO AUTO-ZONE THE FOLLOWING MORNING AND HAD A DIAGNOSTIC DONE, THE TROUBLE CODE HAD TO DO WITH THE THROTTLE POSITION SENSOR. AFTER THAT MY COMPUTER MUST HAVE RESET ITSELF AND EVERYTHING WENT BACK TO RUNNING NORMALLY UNTIL ABOUT TWO WEEKS LATER THE SAME THING HAPPENED AGAIN. *TR

  • Filed Mar 2014

    WHILE DRIVING ON INTERSTATE THE ENGINE SHUT DOWN TO 1/2 POWER AND BEGAN TO SHAKE/VIBRATE. THE TOP SPEED THEN WAS ABOUT 40MPH. I FINALLY PULLED OVER AND READ MANUAL ON HOW TO RESET IT. IT WORKED PROPERLY THEN. THIS HAS HAPPENED 4 OTHER TIMES. THE LATEST INCIDENT HAPPENED YESTERDAY, WITH OUT USING CRUISE CONTROL. TRAVELING AT 30 MPH IT SHUT ME DOWN AGAIN . ONE OF THE SCARIEST TIMES , I WAS TRAVELING IN 5 LANES OF TRAFFIC AND IT SHUT ME DOWN TO HALF POWER AND IT WAS QUITE DANGEROUS FOR US TO TRY AND MERGE OUT OF THE WAY AND GET OFF TO A SAFE SPOT ON SIDE OF INTERSTATE. I CALLED THE DEALER AND THEY TOLD ME THERE HAS NOT BEEN A RECALL ON THIS ISSUE, BUT IT SEEMS VERY MUCH LIKE A SAFETY ISSUE WITH ME. THE DEALER ALSO TOLD ME AS WELL AS OTHER AUTO SPECIALIST IS THAT THIS IS A COMMON PROBLEM WITH THIS MODEL OF VEHICLE AND THAT IT WILL COST ABOUT 700 DOLLARS TO REPLACE THE THROTTLE CABLE ASSEMBLY. *TR

  • Filed Apr 2012

    VEHICLE STALLS LOSING ALL POWER TO STEERING AND BRAKING CAPABILITIES. THERE IS NO ADVANCED WARNING OF POWER LOSS, IT SIMPLY QUITS RENDERING THE DRIVER INCAPABLE OF STEERING, MOVING OUT OF THE WAY OF TRAFFIC. HAS BEEN IN CERTIFIED GMC SHOP THREE TIMES, THEY KEEP INSISTING THEY CANNOT FIND PROBLEM AND THE VEHICLE BE PICKED UP. POTENTIAL DEATH TRAP. NOT ONLY UNSAFE FOR DRIVER BUT ALSO ANYONE BEHIND THE VEHICLE. *TR

• Suspension2

  • Filed Sep 2025

    Vehicle is being remotely hacked and placed into regen Parts have been swapped and truck has been tampered with and continues to be tampered with

  • Filed Mar 2015

    SEVERE FRAME CORROSION (ALL SECTIONS OF FRAME). THE UNDERCOATING IS FLAKING OFF IN ALL SECTIONS EXPOSING BARE METAL WHICH IS RAPIDLY CORRODING THROUGHOUT THE FRAME. THE TRUCK IS IN MINT CONDITION INSIDE AND OUT OTHER THAN THIS ISSUE. GM STATED THAT "RUST" IS NOT COVERED UNDER MY ACTIVE WARRANTY. THIS IS A FAULTY COATING APPLICATION OR A FAULTY METAL ISSUE. THIS VEHICLE WILL BE UNSAFE SOON AND IT JUST HIT 12,000 MILES. I PURCHASED THIS "GM CERTIFIED PRE-OWNED" TRUCK TWO WEEKS AGO FROM THE GM DEALERSHIP AND JUST REALIZED THAT MANY, MANY COMPLAINTS HAVE BEEN FILED FOR THIS VERY ISSUE. *TR

• Exterior Lighting2

  1 involved a fire

  • Filed Feb 2021

    THE VEHICLE ABRUPTLY CAUGHT FIRE WHILE DRIVING ON FEBRUARY 20TH 2021. THE REASON REMAINS UNKNOWN. PLEASE SEE ATTACHED IMAGES.

  • Filed Apr 2012

    THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHECKED OUT NORMAL. DEALER REPLACED BRAKE SWITCH WITH NEW PART WITH NO CHANGE. GENERAL MOTORS REFERENCED SERVICE BULLETIN #02-06-03-008D AND CLAIM THE TRUCK IS OPERATING AS DESIGNED. AFTER SEVERAL CONVERSATIONS WITH GM CUSTOMER SERVICE THEY TOLD ME THERE WAS NOTHING THEY WOULD DO ABOUT THE DESIGN OF THE SYSTEM AND I AM STUCK WITH THE TRUCK AS IS. THE GM SERVICE REPRESENTATIVE ALSO REFUSED TO SEND ME ANY DOCUMENTATION REGARDING MY CUSTOMER CLAIM AND DIRECTED ME BACK TO THE SERVICE BULLETIN AND THE DEALER. I HAVE INVESTED A LOT OF MONEY INTO THIS VEHICLE AND HAVE NO CONFIDENCE IN ITS SAFETY AT NIGHT. MY GM CUSTOMER CLAIM #[XXX]. THIS TRUCK WAS PURCHASED NEW AND I WOULD NOT ALLOW MY FAMILY TO OPERATE IT AT NIGHT AND I AM VERY CONCERNED ABOUT THE LIGHT SYSTEM FAILING OR SHORTING OUT AS THE VEHICLE GETS OLDER. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

• Engine And Engine Cooling2

  • Filed Mar 2014

    WHILE DRIVING ON INTERSTATE THE ENGINE SHUT DOWN TO 1/2 POWER AND BEGAN TO SHAKE/VIBRATE. THE TOP SPEED THEN WAS ABOUT 40MPH. I FINALLY PULLED OVER AND READ MANUAL ON HOW TO RESET IT. IT WORKED PROPERLY THEN. THIS HAS HAPPENED 4 OTHER TIMES. THE LATEST INCIDENT HAPPENED YESTERDAY, WITH OUT USING CRUISE CONTROL. TRAVELING AT 30 MPH IT SHUT ME DOWN AGAIN . ONE OF THE SCARIEST TIMES , I WAS TRAVELING IN 5 LANES OF TRAFFIC AND IT SHUT ME DOWN TO HALF POWER AND IT WAS QUITE DANGEROUS FOR US TO TRY AND MERGE OUT OF THE WAY AND GET OFF TO A SAFE SPOT ON SIDE OF INTERSTATE. I CALLED THE DEALER AND THEY TOLD ME THERE HAS NOT BEEN A RECALL ON THIS ISSUE, BUT IT SEEMS VERY MUCH LIKE A SAFETY ISSUE WITH ME. THE DEALER ALSO TOLD ME AS WELL AS OTHER AUTO SPECIALIST IS THAT THIS IS A COMMON PROBLEM WITH THIS MODEL OF VEHICLE AND THAT IT WILL COST ABOUT 700 DOLLARS TO REPLACE THE THROTTLE CABLE ASSEMBLY. *TR

  • Filed Feb 2012

    VEHICLE EXHIBITED "LOW COOLANT" WARNING IN DIC AFTER GM DEF RECALL WAS PERFORMED. "LOW COOLANT" WARNING RETURNED AFTER MULTIPLE REPAIRS TO THE COOLANT SYSTEM FROM SERVICING DEALER. FAILURE OF COOLANT SYSTEM RESULTED IN A FAILURE OF THE HEAD GASKET AND WATER INTRUSION INTO THE #7 CYLINDER. VEHICLE IS 12 MONTHS OLD AND HAD 15,000 MILES AT THE TIME OF FAILURE. VEHICLE ALSO EXHIBITED MULTIPLE ELECTRICAL SYSTEM FAILURES INCLUDING: DEAD BATTERY NO START CONDITION MULTIPLE TIMES TRAILER BRAKE SYSTEM FAILURE ENGINE HOUR METER FAILURE INTERMITTENT ELECTRICAL FAILURES FROM DOOR LOCKS, LIGHTS, RADIO. SELLING DEALER RECALIBRATED ECM TWICE, BUT ELECTRICAL ISSUES ARE STILL PRESENT. *TR

• Traction Control System1

  • Filed Jan 2022

    The contact owns a 2011 GMC Sierra 2500. The contact stated that while starting the vehicle, the vehicle remained in the PARK and failed to shift into DRIVE. The steering wheel was locked preventing the gear shifter from going into gear. The traction control warning light was flashing. The vehicle was taken to the local dealer but, was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 190,000. The VIN was not available.

• Seat Belts1

  1 involved a crash

  • Filed Dec 2020

    TO AVOID A HEAD ON COLLISION I HAD TO MOVE TO THE RIGHT OF MY LANE AND I HIT A MOUNTAIN HEAD ON AND NEITHER THE DRIVER OR PASSENGERS AIRBAG DEPLOYED. THE VEHICLE OVER TURNED ON ITS LEFT DRIVER SIDE AFTER SKIDDING ALONG PAVEMENT FOR A FEW YARDS IT FINALLY CAME TO A STOP. THERE WERE NO PASSENGERS. I WAS THE DRIVER AND SUSTAINED LACERATIONS TO MY HEAD BRUISING IN CHEST AREA AND A PUNCTURED LEFT LUNG. THE VEHICLE WAS IN MOTION GOING 35 MPH

• Visibility1

  • Filed Oct 2019

    TL* THE CONTACT OWNS A 2011 GMC SIERRA 2500. WHILE DRIVING APPROXIMATELY 65 MPH, THE SUN ROOF SUDDENLY FRACTURED AND FELL INTO THE VEHICLE. THERE WERE NO INJURIES. THE CONTACT CALLED SEAVIEW BUICK GMC (LOCATED AT 17909 HIGHWAY 99, LYNNWOOD, WA 98037, 866-223-2586) WHO STATED THAT THE SUN ROOF NEEDED TO BE REPLACED; HOWEVER, THEY NO LONGER MADE THE PARTS FOR THE REPAIR BUT WAS ABLE TO LOCATE THE GLASS AND WAS REPAIRED. THE MANUFACTURER MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 87,500.*JB

• Equipment1

  • Filed Jul 2013

    TL* THE CONTACT OWNS A 2011 GMC SIERRA. THE CONTACT STATED THAT WHILE REPLACING A FLAT TIRE, HE NOTICED THAT THE JACK DID NOT EXTEND HIGH ENOUGH TO LIFT THE VEHICLE AND REPLACE THE TIRE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE JACK WAS NOT REPLACED. THE APPROXIMATE FAILURE MILEAGE WAS 24,000. *TR

• Equipment Adaptive/Mobility1

  • Filed Jul 2013

    TL* THE CONTACT OWNS A 2011 GMC SIERRA. THE CONTACT STATED THAT WHILE REPLACING A FLAT TIRE, HE NOTICED THAT THE JACK DID NOT EXTEND HIGH ENOUGH TO LIFT THE VEHICLE AND REPLACE THE TIRE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE JACK WAS NOT REPLACED. THE APPROXIMATE FAILURE MILEAGE WAS 24,000. *TR

• Fuel System1

  • Filed Mar 2013

    I OWN A 2011 GMC SIERRA 3500 6.6 DURAMAX DIESEL TRUCK. WHEN THE TRUCK IS "REGEN-ING" THE "DPF", RAW FUEL LEAKS FROM AN EXHAUST COUPLING LOCATED AT THE TURBO AND DOWN-PIPE SATURATING THE HOT EXHAUST PIPE WITH FUEL. WHEN YOU COME TO A STOP WHILE IT IS IN THIS REGEN MODE WHITE SMOKE BOILS OUT FROM UNDER THE HOOD AND ENTERS THE CABIN INDUCING A COUGHING FIT AND BURNING EYES. I TOOK THE TRUCK TO A GMC DEALER IN SAN ANGELO TX AND TOLD THEM ABOUT THE PROBLEM. WAS TOLD THAT THEY COULDN'T REPLICATE THE PROBLEM THAT I WAS DESCRIBING AND THAT I SHOULD REST ASSURED BECAUSE "DIESEL WON'T BURN ANYWAY". *TR

• Diesel1

  • Filed Mar 2013

    I OWN A 2011 GMC SIERRA 3500 6.6 DURAMAX DIESEL TRUCK. WHEN THE TRUCK IS "REGEN-ING" THE "DPF", RAW FUEL LEAKS FROM AN EXHAUST COUPLING LOCATED AT THE TURBO AND DOWN-PIPE SATURATING THE HOT EXHAUST PIPE WITH FUEL. WHEN YOU COME TO A STOP WHILE IT IS IN THIS REGEN MODE WHITE SMOKE BOILS OUT FROM UNDER THE HOOD AND ENTERS THE CABIN INDUCING A COUGHING FIT AND BURNING EYES. I TOOK THE TRUCK TO A GMC DEALER IN SAN ANGELO TX AND TOLD THEM ABOUT THE PROBLEM. WAS TOLD THAT THEY COULDN'T REPLICATE THE PROBLEM THAT I WAS DESCRIBING AND THAT I SHOULD REST ASSURED BECAUSE "DIESEL WON'T BURN ANYWAY". *TR

• Hydraulic1

  • Filed Apr 2012

    THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHECKED OUT NORMAL. DEALER REPLACED BRAKE SWITCH WITH NEW PART WITH NO CHANGE. GENERAL MOTORS REFERENCED SERVICE BULLETIN #02-06-03-008D AND CLAIM THE TRUCK IS OPERATING AS DESIGNED. AFTER SEVERAL CONVERSATIONS WITH GM CUSTOMER SERVICE THEY TOLD ME THERE WAS NOTHING THEY WOULD DO ABOUT THE DESIGN OF THE SYSTEM AND I AM STUCK WITH THE TRUCK AS IS. THE GM SERVICE REPRESENTATIVE ALSO REFUSED TO SEND ME ANY DOCUMENTATION REGARDING MY CUSTOMER CLAIM AND DIRECTED ME BACK TO THE SERVICE BULLETIN AND THE DEALER. I HAVE INVESTED A LOT OF MONEY INTO THIS VEHICLE AND HAVE NO CONFIDENCE IN ITS SAFETY AT NIGHT. MY GM CUSTOMER CLAIM #[XXX]. THIS TRUCK WAS PURCHASED NEW AND I WOULD NOT ALLOW MY FAMILY TO OPERATE IT AT NIGHT AND I AM VERY CONCERNED ABOUT THE LIGHT SYSTEM FAILING OR SHORTING OUT AS THE VEHICLE GETS OLDER. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

Safety ratings

NHTSA 5-Star Safety Ratings from government crash tests. Ratings can differ by cab style and 2WD/4WD.