2007 GMC Sierra 2500HD

What owners should know

Covers 2007–2010 · 6.6L Duramax LMM 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 2007 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.

• 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

• Passenger airbag inflator recall

  Dealer (recall)

  Signs: No warning. The inflator can rupture in a crash.

  Fix: Covered by GM recalls. A dealer replaces the airbag for free.

  May be covered free by recall 15V324000 / 20V011000. Check the VIN at nhtsa.gov/recalls.

• Transmission cooler line leaks (diesel)

  Moderate DIY

  Signs: Transmission fluid dripping near the radiator, low fluid.

  Fix: Replace the cooler lines, usually where the rubber hose meets the metal crimp.

  Shop: Duramax transmission cooler lines▶ 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

• Rusted brake lines

  Hard DIY

  Signs: Heavy scale or swelling on the steel lines along the frame, a soft pedal, or a fluid leak.

  Fix: Replace rusted lines with pre-bent lines or copper-nickel line, then bleed the brakes. Do the whole run, not just the bad spot.

  Shop: brake line kit▶ 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

  Jan 2020 · #20V011000

  General Motors LLC (GM) is recalling certain 2007-2008 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles equipped with non-desiccated, passenger frontal air bag inflators containing phase stabilized ammonium nitrate (PSAN) propellant that were used as interim remedy parts for previous Takata recalls. 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 front passenger or other occupants resulting in serious injury or death.

  Fix: GM will notify owners, and dealers will replace the front passenger air bag inflators, free of charge. The recall began February 11, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N192290990.

• Air Bags:Frontal:Passenger Side:Inflator Module

  May 2015 · #15V324000

  General Motors LLC (GM) is recalling certain model year 2007-2008 Chevrolet Silverado 2500HD and 3500HD trucks manufactured November 28, 2006, to August 29, 2008, and 2007-2008 GMC Sierra 2500HD and 3500HD trucks manufactured November 27, 2006, to August 29, 2008. The affected vehicles are equipped with a passenger side frontal air bag that may be susceptible to moisture intrusion which, over time, could cause the inflator to rupture upon its deployment.

  Risk and fix

  Risk: In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants, potentially resulting in serious injury or death.

  Fix: GM will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began on July 27, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's numbers for this recall are 15438 and 15817.

• 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 Bags49

  1 involved a crash

  • Filed Feb 2026

    Air bag front impact sensor are no longer available from manufacturer. Airbag system in inoperable.

  • Filed Oct 2025

    Front air bag sensor part is not available. Part number 85597996 has been discontinued without a replacement. As such, I have no airbag system on my truck.

  • Filed Apr 2023

    I left my vehicle for service (19 April 2023 - approximately 8:30 am CT) for an urgent safety recall to Bommarito West County GMC dealership located at 15736 Manchester, Ellisville, MO 63011 (Phone: 636-391-7200). When I drove the vehicle in the dealership and had not issues driving and steering. And when I picked it up at approximately 12:30 pm the same day the service consultant (Joshua Delanoix) did not bring the vehicle to me the same as I left it. Joshua asked that I pick it up in the parking lot, instead. I drove off the lot and noticed that the steering wheel would pull severely off to the right side when breaking causing the car to become unstable and steering towards oncoming traffic. I slowed down until I could retain better control of the vehicle to get home. Then, at approximately 4:30 pm, I drove back to the dealership and spoke to the same service consultant. He then referred me to the service manager (Pat Roberts). I explained to service manager that I could not drive the vehicle safely and requested a safety check. Pat refused to check the service work or the vehicle safety and disregarded my concerns. Afterwards, I spoke to the sales manager (Larry Buchhorn) and explained again my safety concern and he followed up with the same service manager and told me that there was nothing they could do and that the service manager's supervisor (Mike Simms) would contact me. Finally, I was allowed to drive out of the dealership with the same safety issue for the second time.

  • Filed Oct 2021

    The steering wheel air bag deployed when parked and rear windows were going up and down by themselves. There was no impact.

  • Filed Aug 2020

    THE VEHICLE IS USED AS A PLOW TRUCK ON PRIVATE PROPERTY(FARM). IT IS NOT REGISTERED OR INSURED. GMC REFUSES TO TOW IT TO THE NEAREST DEALERSHIP FOR ITS AIRBAG RECALL. THEY ARE TELLING ME I HAVE TO PAY FOR THE TOW THERE AND BACK(18 MILES). THEY HAVE SENT OUT EMAILS STATING THEY WILL GIVE ME A $50 GIFT CARD, ALSO THEY WILL GIVE ME A LOANER CAR. I SHOULD NOT HAVE TO PAY FOR THERE BAD AIRBAG. PLEASE HELP. THANK YOU FOR YOUR TIME I. THIS MATTER.

  • Showing the 5 most recent of 49.
• Unknown or Other8

  1 involved a crash

  • Filed Sep 2023

    my 2007.5 GMC Duramax has been parked for 1 month, had to barrow a truck to go to work, just not willing to pay the 1600-4500 dollars that suppliers or private sellers are asking for the TCM, tried a private seller on EBAY and it turned out to be a scam, local Dealership has no clue on ETA, I use my truck 6 days out of the week and now sitting not being moved may cause other issue when I do finally get it going again, the problem with my durumax is the TCM Transmission Control Module, I was already at home when issue started.

  • Filed Nov 2017

    I OWN A 2007 GMC SIRREA 2500HD SLT TRUCK AND IT HAS CRACKS IN THE DASH BOARD.WHICH FROM MY RESEARCH THESE GM TRUCKS AND MORE HAVE A HISTORY OF CRACKING AND GM REFUSES TO CORRECT THE PROBLEM. IT WOULD BE GREAT IF GM WOULD ADMIT TO THIS PROBLEM AND FIX IT AT THEIR EXPENSE.THE TRUCK WAS JUST SITTING WHEN I NOTICED THE CRACKS. THE CRACKS ARE LOCATED ABOVE THE GAUGE PANEL AND ON THE CORNER OF THE PASSENGER AIRBAG.

  • Filed Jul 2017

    MY TRUCK HAS A DEFECTIVE DASH THAT HAS CRACKED IN MULTIPLE PLACES FOR NO REASON AND NO ROUGH TREATMENT OR ANYTHIG THAT WOULD CAUSE IT TO BREAK, IT CRACKED AND BROKE ALL ON ITS OWN... AND GMC SHOULD BE RESPONSIBLE FOR REPLACING BECAUSE IT IS A SAFETY HAZARD. THIS IS A DEFECT HAPPENING TO THOUSANDS OF THESE TRUCKS AND ALL THE CRACKS AND BREAKS AND IN THE SAME EXACT SPOTS WHICH WOULD SEEM TO BE A MANUFACTURER DEFECT NOT A CONSUMER ISSUE...IF I WERE TO GET INTO AN ACCIDENT THE DEFECTIVE BROKEN DASH COULD SERIOUSLY INJURE SOMEONE. MY TRUCK IS ALSO PART OF THE TAKATA RECALL AND I CAN NOT GO IN TO GET THE AIR BAG FIXED BECAUSE IT WILL FURTHER BREAK MY DASH. THIS DASH ISSUE IS A MAJOR SAFETY ISSUE THAT NEEDS TO BE ADDRESSED AND A RECALL NEEDS TO BE MADE FOR THIS ISSUE

  • Filed May 2017

    AUGUST 19, 2016 TRUCK WAS IN AN ACCIDENT WHEN THE VEHICLE WENT OUT OF CONTROL.. A BRACKET ON THE LEFT FRONT OF THE TRUCK BROKE AND THERE APPEARED TO BE A CRACK ON IT. WE BELIEVE THE ACCIDENT WAS CAUSED BY THE BRACKET BRAKING AND THEN MADE IT SO THAT WE COULD NOT CONTROL THE VEHICLE

  • Filed Apr 2017

    THE DASH OF MY 2007 GMC 2500HD PICKUP TRUCK HAS CRACKED IN SEVERAL PLACES INCLUDING AROUND THE PASSENGER SIDE AIRBAG, UP AND OVER THE INSTRUMENT CLUSTER HUMP, AND IN THE MIDDLE OF THE DASH. THESE CRACKS HAVE EXPANDED OVER THE PAST YEAR AND HAVE BECOME QUITE LARGE. I AM CONCERNED THAT THE CRACKS AT THE AIRBAG COVER MAY IMPEDE THE PROPER FUNCTION OF THE AIRBAG SYSTEM AS WELL. THIS SEEMS TO BE AN ONGOING PROBLEM WITH MANY GMC TRUCK OWNERS WITH MODEL YEARS 2007 - 2011 AND MY TRUCK DISPLAYS CRACKING VERY SIMILAR TO OTHERS POSTED TO WEBSITES ON THE INTERNET.

  • Showing the 5 most recent of 8.
• Structure7

  1 involved a crash

  • Filed Apr 2018

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. THE CONTACT NOTICED NUMEROUS CRACKS IN THE DASHBOARD AROUND THE PASSENGER SIDE AIR BAG AREA. LARRY STOVESAND BUICK GMC IN PADUCAH, KENTUCKY AND ROYAL OAKS CHEVROLET IN PADUCAH, KENTUCKY WERE MADE AWARE OF THE FAILURE AND STATED THAT THERE WAS NO RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 103,000.

  • Filed Nov 2017

    I OWN A 2007 GMC SIRREA 2500HD SLT TRUCK AND IT HAS CRACKS IN THE DASH BOARD.WHICH FROM MY RESEARCH THESE GM TRUCKS AND MORE HAVE A HISTORY OF CRACKING AND GM REFUSES TO CORRECT THE PROBLEM. IT WOULD BE GREAT IF GM WOULD ADMIT TO THIS PROBLEM AND FIX IT AT THEIR EXPENSE.THE TRUCK WAS JUST SITTING WHEN I NOTICED THE CRACKS. THE CRACKS ARE LOCATED ABOVE THE GAUGE PANEL AND ON THE CORNER OF THE PASSENGER AIRBAG.

  • Filed May 2016

    THE DASH BOARD OF MY 2007 NEW BODY STYLE GMC SIERRA 2500 HD IS CRACKED AT THE PASSENGER AIR BAG AT THE UPPER LEFT CORNER. THIS CAN POSSIBLY CAUSE PARTS OF THE DASH TO HIT THE PASSENGER OR DRIVER WHEN AN ACCIDENT OCCURS. THE CRACK HAS BEEN GROWING STEADILY OVER TIME.

  • Filed May 2015

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. WHEN DRIVING OVER BUMPS, A BANGING NOISE WAS PRESENT UNDER THE VEHICLE. WHILE INSPECTING THE VEHICLE, THE CONTACT DISCOVERED MULTIPLE CRACKS AND SEPARATION OF THE SUBFRAME. THE VEHICLE WAS TAKEN TO THE DEALER, BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 75,000.

  • Filed Mar 2015

    MY TRUCK HAS A FAULTY DASHBOARD AND IT IS A SAFETY CONCERN IF I GET IN AN ACCIDENT. *TR

  • Showing the 5 most recent of 7.
• Service Brakes6

  1 involved a fire

  • Filed Sep 2017

    BRAKE LINES FAILED ON MY 2007 GMC 2500 AND MY 2007 GMC 1500. IT APPEARS TO BE A COMMON PROBLEM WITH GMC VEHICLES FROM 2003 TO 2009. WHY WASN'T THESE VEHICLES RECALLED FOR THIS. I WAS TOLD THAT GMC WAS OFFERING A DISCOUNTED PRICE FOR FAILED BRAKE LINES, BUT THE DEALER CHARGED ME FULL PRICE. $1,667.00. THE DISCOUNTED PRICE WAS SUPPOSED TO BE $500.00.

  • Filed Aug 2016

    ABS MODULE IS NO LONGER WORKING AND GM IS NO LONGER SUPPLYING THE PART AND NONE ARE AVAILABLE. TALKED TO REPAIR SHOPS AND IT ISN'T A FIXABLE PART LEAVING THE TRUCK WITHOUT ABS.

  • Filed Apr 2016

    ON OCT. 12, 20115, WHILE DRIVING ON A STATE HIGHWAY TO THE GROCERY STORE, AS I WAS SLOWING DOWN FOR A RED LIGHT THE PASSENGER SIDE REAR BRAKE LINE RUPTURED. TO MAKE A LONG STORY SHORT, I PURCHASED A NEW BRAKE LINE AND REPLACED IT. I ALSO HAD TO REPLACE THE CALIPER BECAUSE OF CORROSION. DURING THE REPLACEMENT OF THE BRAKE LINE I INSPECTED THE OTHER BRAKE LINES. THEY WERE ALSO RUSTY. I CALLED MY SERVICE CENTER AND THEY TOLD ME IT'S A RESULT OF THE PRE-TREATMENT SOLUTION THEY SPRAY ON THE ROADS IN THE WINTER. ON JANUARY 11TH OF THIS YEAR, A SECOND BRAKE LINE RUPTURED WHEN A CAR PULLED OUT RIGHT IN FRONT OF ME ON THE SAME ROAD AS BEFORE. THIS TIME IT WAS THE BRAKE LINE THAT RUNS FROM THE MASTER CYLINDER TO THE ABS MODULE. I PURCHASED THIS 2007 GMC SIERRA 2500HD BRAND NEW IN NOV OF 07'. IT HAS 17,510 ORIGINAL MILES. I WASH THE UNDER CARRIAGE EVERY SPRING AS I HAVE ON ALL MY PREVIOUS VEHICLES. MY FIRST CHEV. PICKUP I HAD FOR 20 YEARS AND NEVER HAD A BRAKE LINE ISSUE!! WHEN I TALKED TO THE SERVICE MANAGER WHERE I HAVE MY VEHICLES SERVICED HE TOLD ME THEY ARE SEEING A LOT OF PICKUPS COMING IN WITH SIMILAR ISSUES. HE TOLD ME THAT THEY ARE INSTALLING THE NEW COPPER/ ZINC BRAKE LINES WHICH RESIST THE ROAD TREATMENTS. WHEN I ASKED IF THERE'S A CHARGE HE SAID FOR JUST REPLACING THE BRAKE LINES IT WOULD BE $1,500. BEING RETIRED ON A FIXED INCOME I CANNOT AFFORD ANYWHERE NEAR THAT MUCH! BEING THIS IS A SERIOUS SAFETY ISSUE I FEEL GMC SHOULD RECALL AND REPLACE THESE INFERIOR BRAKE LINES. I CALLED GM TO ASK FOR HELP. THEY TOLD ME THE ONLY THING THEY COULD DO IS, BEING A LOYAL CUSTOMER, THEY WOULD GIVE ME $2,000 OFF A NEW TRUCK IF I WANTED TO TRADE IT IN. MY RESPONSE: WHY WOULD I TRADE IN A TRUCK THAT'S BOUGHT AND PAID FOR WITH ONLY 17,510 MILES ON IT AND IN EXCELLENT CONDITION OTHERWISE FOR ANOTHER NEW TRUCK AND ANOTHER 6 YEARS OF PAYMENTS THAT WE CANNOT AFFORD! PLEASE HELP.

  • Filed Feb 2012

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN FOR STATE INSPECTION WHEN HE WAS ADVISED THAT THE REAR BRAKES WERE CORRODED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC WHERE THE ROTORS WERE REPLACED. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 8,026.

  • Filed Oct 2010

    GMC-CHEVROLET PICKUP TRUCKS, YEAR 2000 TO CURRENT. BRAKE ROTORS DELAMINATING AND RUSTING, CAUSING BRAKE DISC PADS NOT TO GRIP THE ROTOR. FREQUENT PROBLEM CAUSING BRAKES TO WORK POORLY. GMC REFUSES TO REPLACE POOR QUALITY BRAKE ROTORS EVEN UNDER NEW CAR WARRANTY. SERIOUS DECAY IN BRAKING FROM HIGH SPEED, TOWING OR WITH LOADS IN THE TRUCK. DEALER ADMITS PROBLEM, FACTORY REFUSES TO FIX. AFTERMARKET ROTORS BY EBC WORK PROPERLY FOR SAFETY IN STOPPING. AC DELCO ROTORS ARE SERIOUSLY DEFECTIVE. NARROWLY AVOIDED AN ACCIDENT WITH POOR BRAKES ON A TRUCK 2 YEARS OLD WITH 13,000 MILES. WELL KNOWN PROBLEM DISCUSSED AROUND THE INTERNET. *TR

  • Showing the 5 most recent of 6.
• Electrical System5

  • Filed Aug 2025

    Odometer Fraud. The contact considered purchasing a 2007 GMC Sierra 2500 from a local dealer. The contact stated that vehicle mileage was listed as 159,000, but the Carfax report listed the mileage as 400,000.

  • Filed Feb 2017

    TL* TAKATA RECALL. THE CONTACT OWNS A 2007 GMC SIERRA 2500. AFTER THE VEHICLE WAS STARTED, THE AIR BAG WARNING INDICATOR ILLUMINATED. THE DEALER DIAGNOSED THAT UNKNOWN PARTS RELATED TO THE AIR BAG NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V324000 (AIR BAGS); HOWEVER, THE PARTS TO REPAIR THE VEHICLE WERE UNAVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100.

  • Filed Nov 2015

    BATTERY WENT DEAD RECHARGED HOUR METER RESET TO ZERO BUT STILL WORKS I USE THIS INFO FOR MAINTANCE PURPOSES

  • Filed Mar 2013

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE ELECTRICAL SYSTEM FAILED. THE CONTACT STATED THAT ALL OF THE ELECTRICAL COMPONENTS IN THE VEHICLE FAILED FOR APPROXIMATELY 10 MINUTES BEFORE FUNCTIONING PROPERLY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION OR REPAIRS. THE MANUFACTURER WAS NOTIFIED BUT PROVIDED NO ASSISTANCE. THE FAILURE MILEAGE WAS 133,000.

  • Filed Feb 2010

    AS I WAS LEAVING LAS VEGAS ON I 15, I GOT A MESSAGE OF REDUCED POWER. I WAS JUST OUT OF HEAVY TRAFFIC, TRAVELING ABOUT 70 MPH, WHEN THE ENGINE SLOWED TO ABOUT 1,000 RPM WITH OUT WARNING. FOUND OUT LATER THAT IT WAS A BROKEN LEAD WIRE TO THE THROTTLE POSITION SENSOR. THE TRUCK HAD ABOUT 37,000 MILES ONIT. THE TRUCK IS A 2007 2500HD WITH 6.0 ENGINE. THE TRUCKI HAS NEVER BEEN WORKED ON,AND IS LINE NEW. DEALER INSTALLED P/N 88986255 CONNECTOR. I RECEIVED HALF OR THE COST BACK AFTER CALLING GMC. I FEEL THAT THIS IS A SAFETY PROBLEM. AS I WAS JUST OUT OF HEAVY TRAFFIC AND COULD PULL OFF OF THE ROAD. *TR

• Hydraulic4

  1 involved a fire

  • Filed Apr 2016

    ON OCT. 12, 20115, WHILE DRIVING ON A STATE HIGHWAY TO THE GROCERY STORE, AS I WAS SLOWING DOWN FOR A RED LIGHT THE PASSENGER SIDE REAR BRAKE LINE RUPTURED. TO MAKE A LONG STORY SHORT, I PURCHASED A NEW BRAKE LINE AND REPLACED IT. I ALSO HAD TO REPLACE THE CALIPER BECAUSE OF CORROSION. DURING THE REPLACEMENT OF THE BRAKE LINE I INSPECTED THE OTHER BRAKE LINES. THEY WERE ALSO RUSTY. I CALLED MY SERVICE CENTER AND THEY TOLD ME IT'S A RESULT OF THE PRE-TREATMENT SOLUTION THEY SPRAY ON THE ROADS IN THE WINTER. ON JANUARY 11TH OF THIS YEAR, A SECOND BRAKE LINE RUPTURED WHEN A CAR PULLED OUT RIGHT IN FRONT OF ME ON THE SAME ROAD AS BEFORE. THIS TIME IT WAS THE BRAKE LINE THAT RUNS FROM THE MASTER CYLINDER TO THE ABS MODULE. I PURCHASED THIS 2007 GMC SIERRA 2500HD BRAND NEW IN NOV OF 07'. IT HAS 17,510 ORIGINAL MILES. I WASH THE UNDER CARRIAGE EVERY SPRING AS I HAVE ON ALL MY PREVIOUS VEHICLES. MY FIRST CHEV. PICKUP I HAD FOR 20 YEARS AND NEVER HAD A BRAKE LINE ISSUE!! WHEN I TALKED TO THE SERVICE MANAGER WHERE I HAVE MY VEHICLES SERVICED HE TOLD ME THEY ARE SEEING A LOT OF PICKUPS COMING IN WITH SIMILAR ISSUES. HE TOLD ME THAT THEY ARE INSTALLING THE NEW COPPER/ ZINC BRAKE LINES WHICH RESIST THE ROAD TREATMENTS. WHEN I ASKED IF THERE'S A CHARGE HE SAID FOR JUST REPLACING THE BRAKE LINES IT WOULD BE $1,500. BEING RETIRED ON A FIXED INCOME I CANNOT AFFORD ANYWHERE NEAR THAT MUCH! BEING THIS IS A SERIOUS SAFETY ISSUE I FEEL GMC SHOULD RECALL AND REPLACE THESE INFERIOR BRAKE LINES. I CALLED GM TO ASK FOR HELP. THEY TOLD ME THE ONLY THING THEY COULD DO IS, BEING A LOYAL CUSTOMER, THEY WOULD GIVE ME $2,000 OFF A NEW TRUCK IF I WANTED TO TRADE IT IN. MY RESPONSE: WHY WOULD I TRADE IN A TRUCK THAT'S BOUGHT AND PAID FOR WITH ONLY 17,510 MILES ON IT AND IN EXCELLENT CONDITION OTHERWISE FOR ANOTHER NEW TRUCK AND ANOTHER 6 YEARS OF PAYMENTS THAT WE CANNOT AFFORD! PLEASE HELP.

  • Filed Feb 2012

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN FOR STATE INSPECTION WHEN HE WAS ADVISED THAT THE REAR BRAKES WERE CORRODED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC WHERE THE ROTORS WERE REPLACED. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 8,026.

  • Filed Oct 2010

    GMC-CHEVROLET PICKUP TRUCKS, YEAR 2000 TO CURRENT. BRAKE ROTORS DELAMINATING AND RUSTING, CAUSING BRAKE DISC PADS NOT TO GRIP THE ROTOR. FREQUENT PROBLEM CAUSING BRAKES TO WORK POORLY. GMC REFUSES TO REPLACE POOR QUALITY BRAKE ROTORS EVEN UNDER NEW CAR WARRANTY. SERIOUS DECAY IN BRAKING FROM HIGH SPEED, TOWING OR WITH LOADS IN THE TRUCK. DEALER ADMITS PROBLEM, FACTORY REFUSES TO FIX. AFTERMARKET ROTORS BY EBC WORK PROPERLY FOR SAFETY IN STOPPING. AC DELCO ROTORS ARE SERIOUSLY DEFECTIVE. NARROWLY AVOIDED AN ACCIDENT WITH POOR BRAKES ON A TRUCK 2 YEARS OLD WITH 13,000 MILES. WELL KNOWN PROBLEM DISCUSSED AROUND THE INTERNET. *TR

  • Filed Sep 2008

    TL*THE CONTACT OWNS A 2007 GMC SIERRA 2500. ON TWO SEPARATE OCCASIONS WHILE DRIVING DOWNHILL AT 45 MPH, THE ROTORS BECAME WARPED AND BEGAN SMOKING. THE CONTACT SMELLED A BURNING ODOR. ON EACH OCCASION, THE DEALER COULD NOT FIND ANY FAILURES. THE CONTACT WAS CONCERNED THAT HIS BRAKES WOULD FAIL WHILE DRIVING DOWN A HILL. THE CURRENT MILEAGE WAS 24,000 AND FAILURE MILEAGE WAS 22,000.

• Steering3

  • Filed Apr 2023

    I left my vehicle for service (19 April 2023 - approximately 8:30 am CT) for an urgent safety recall to Bommarito West County GMC dealership located at 15736 Manchester, Ellisville, MO 63011 (Phone: 636-391-7200). When I drove the vehicle in the dealership and had not issues driving and steering. And when I picked it up at approximately 12:30 pm the same day the service consultant (Joshua Delanoix) did not bring the vehicle to me the same as I left it. Joshua asked that I pick it up in the parking lot, instead. I drove off the lot and noticed that the steering wheel would pull severely off to the right side when breaking causing the car to become unstable and steering towards oncoming traffic. I slowed down until I could retain better control of the vehicle to get home. Then, at approximately 4:30 pm, I drove back to the dealership and spoke to the same service consultant. He then referred me to the service manager (Pat Roberts). I explained to service manager that I could not drive the vehicle safely and requested a safety check. Pat refused to check the service work or the vehicle safety and disregarded my concerns. Afterwards, I spoke to the sales manager (Larry Buchhorn) and explained again my safety concern and he followed up with the same service manager and told me that there was nothing they could do and that the service manager's supervisor (Mike Simms) would contact me. Finally, I was allowed to drive out of the dealership with the same safety issue for the second time.

  • Filed Jan 2016

    A PRESSURE LINE ON STEERING COOLER RUSTED THROUGH AND BLEW FLUID OUT ALL OVER GRILL AND BUMPER. MAKES ONE HELL OF A NOISE WITH NO FLUID IN PUMP. I WAS DRIVING 10 MPH WHEN IT HAPPENED AND HAD TO GO ABOUT 1/4 MILE TO PARK.

  • Filed Nov 2011

    I HAVE A 2007 GMC SIERRA 2500 HD CREW CAB SLT PICKUP 4D 6 FT., PURCHASED NEW IN O7, WITH ABOUT 70,000 MILES ON IT. I JUST HAD THE RIGHT FRONT AXLE COME APART. IT SEEMS THE RUBBER BOOT AND TWO METAL BANDS THAT CLAMP THE BOOT ONTO BOTH PARTS OF THE AXLE HOLD THE AXLE TOGETHER. *TR

• Seat Belts3

  • Filed Nov 2019

    I HAD STARTED THE TRUCK, CONNECTED A LANDSCAPE TRAILER AND STARTED OUT OF THE YARD, I STOPPED IN THE DRIVEWAY TO CHECK THE SAFETY CHAINS. WHILE I WAS OUTSIDE THE VEHICLE I HEARD A BANG. WHEN I GOT BACK IN THE TRUCK THE AIRBAG LIGHT WAS ON AND BOTH FRONT SEATBELTS WERE LOCKED.

  • Filed May 2017

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. WHILE DRIVING 55 MPH, THE SEAT BELT INDEPENDENTLY UNBUCKLED. THE CONTACT STATED THAT THE FAILURE RECURRED INTERMITTENTLY ON SEVERAL OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE CONTACT WAS PROVIDED GM CASE NUMBER: 8-293255-7588. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

  • Filed Apr 2016

    TL* THE CONTACT OWNS A 2007 GMC SIERRA 2500. WHILE DRIVING 80 MPH, THE FRONT DRIVER SIDE SEAT BELT INDEPENDENTLY UN-BUCKLED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000. UPDATED 06/29/16*LJ UPDATED 07/25/16.*JB

• Suspension3

  2 involved a crash

  • Filed May 2017

    AUGUST 19, 2016 TRUCK WAS IN AN ACCIDENT WHEN THE VEHICLE WENT OUT OF CONTROL.. A BRACKET ON THE LEFT FRONT OF THE TRUCK BROKE AND THERE APPEARED TO BE A CRACK ON IT. WE BELIEVE THE ACCIDENT WAS CAUSED BY THE BRACKET BRAKING AND THEN MADE IT SO THAT WE COULD NOT CONTROL THE VEHICLE

  • Filed Jul 2012

    TRUCK WAS TRAVELING APPROXIMATELY AT FIFTY OR FIFTY FIVE, SUDDENLY DRIVER LOST CONTROL OF VEHICLE, WENT OFF THE ROAD AND LANDED IN TREES AND BUSHES, NONE OF THE AIR BAGS DEPLOYED, THERE WERE THREE PASSENGERS. *JS

  • Filed Nov 2011

    I HAVE A 2007 GMC SIERRA 2500 HD CREW CAB SLT PICKUP 4D 6 FT., PURCHASED NEW IN O7, WITH ABOUT 70,000 MILES ON IT. I JUST HAD THE RIGHT FRONT AXLE COME APART. IT SEEMS THE RUBBER BOOT AND TWO METAL BANDS THAT CLAMP THE BOOT ONTO BOTH PARTS OF THE AXLE HOLD THE AXLE TOGETHER. *TR

• Fuel System3

  • Filed Jun 2014

    I HAD TO REPLACE A FUEL LINE LAST FALL BECAUSE IT RUSTED THRU.. ON JUNE 6 2014 I NOTICED FUEL DRIPPING FROM THE FENDER EDGE WHICH WAS FOUND TO BE A FUEL LEAK FROM A LINE ON TOP THE TANK. *TR

  • Filed Feb 2010

    AS I WAS LEAVING LAS VEGAS ON I 15, I GOT A MESSAGE OF REDUCED POWER. I WAS JUST OUT OF HEAVY TRAFFIC, TRAVELING ABOUT 70 MPH, WHEN THE ENGINE SLOWED TO ABOUT 1,000 RPM WITH OUT WARNING. FOUND OUT LATER THAT IT WAS A BROKEN LEAD WIRE TO THE THROTTLE POSITION SENSOR. THE TRUCK HAD ABOUT 37,000 MILES ONIT. THE TRUCK IS A 2007 2500HD WITH 6.0 ENGINE. THE TRUCKI HAS NEVER BEEN WORKED ON,AND IS LINE NEW. DEALER INSTALLED P/N 88986255 CONNECTOR. I RECEIVED HALF OR THE COST BACK AFTER CALLING GMC. I FEEL THAT THIS IS A SAFETY PROBLEM. AS I WAS JUST OUT OF HEAVY TRAFFIC AND COULD PULL OFF OF THE ROAD. *TR

  • Filed Mar 2008

    USE OF ULTRA LOW SULFUR DIESEL FUEL CAUSING DAMAGE IN EARLIER DIESEL ENGINES. *TR

• Power Train2

  • Filed Jun 2020

    CLUTCH PEDDLE BROKE OUT IN MAY 2019. PLASTIC CLUTCH MASTER PUSHED OUT OF CLUTCH PEDDLE BECAUSE OF POOR DESIGN. *TR

  • Filed Mar 2015

    GENERAL MOTORS GMC SIERRA DURAMAX EQUIPPED PICK UP TRUCKS (LMM SERIES) HAVE AN ISSUE WITH LEAKING TRANSMISSION COOLING LINES WHERE THE RUBBER HOSES ARE CRIMPED TO THE STEEL CONNECTORS. THE PROBLEM IS A FIRE HAZARD DUE TO LEAKING TRANSMISSION FLUID. GM HAS ALREADY ISSUED REPLACEMENT OF THESE HOSES FOR THE 2008 MODEL YEAR. IN 2007 GM HAD A SPLIT YEAR OFFERING FOR THE DURAMAX. THE 2007 VERSION WAS A SERIES LBZ. IN THE SECOND HALF OF 2007 (DUE TO EMISSIONS REQUIREMENTS) GMC INTRODUCED THE MODEL YEAR DESIGNATION 2007.5. THE 2007.5 WERE THE FIRST OF THE LMM SERIES. THE 2007.5 ARE IDENTICAL TO MODEL YEAR 2008. THE 2007.5 LMM SERIES HAVE THE SAME LEAKING TRANSMISSION COOLER LINES AND SHOULD BE INCLUDED IN THE SAME DECISION AS THE 2008 MODELS. SINCE THE 2007.5 SHOW UP AS "2007" MODEL YEAR THEY HAVE NOT BEEN INCLUDED. GM HAS MISSED THIS SMALL GROUP OF 1/2 YEAR VEHICLES (I BELIEVE AN OVERSIGHT) IN THE HOSE REPLACE RECALL. SINCE THIS ISSUE HAS ALREADY BEEN IDENTIFIED FOR 2008 VEHICLES THE SAME ISSUE APPLIES FOR 2007.5 MODELS. THEY SHOULD ALSO BE INCLUDED BUT CURRENTLY ARE NOT. I'M HOPING THAT THE AWARENESS OF THE UNUSUAL SPLIT YEAR MODELS (SERIES LMM) IS REALIZED AND THEIR VIN NUMBERS ADDED TO THE RECALL. *TR

• Diesel2

  • Filed Jun 2014

    I HAD TO REPLACE A FUEL LINE LAST FALL BECAUSE IT RUSTED THRU.. ON JUNE 6 2014 I NOTICED FUEL DRIPPING FROM THE FENDER EDGE WHICH WAS FOUND TO BE A FUEL LEAK FROM A LINE ON TOP THE TANK. *TR

  • Filed Mar 2008

    USE OF ULTRA LOW SULFUR DIESEL FUEL CAUSING DAMAGE IN EARLIER DIESEL ENGINES. *TR

• Tires2

  • Filed May 2009

    WENT TO RETAILER TO GET A FLAT REPAIRED - THEY TOLD ME IT WAS NOT REPAIRABLE ANDSOLD ME A USED TIRE. WITHIN 250 MILES AFTER PURCHASE THE TREAD SEPARATED - AND CAUSED DAMAGE TO MY TRUCK. NEITHER THE MANUFACTURER OF THE TIRE NOR THE RETAILER WOULD HELP WITH THE SUBSTANTIAL REPAIR COSTS. *TR

  • Filed May 2008

    TIRE PRESSURE RECOMMENDED TOO HIGH. I BOUGHT A NEW 2007 GMC SIERRA 2500HD DIESEL CREW CAB LONG BED. AND THE REQUIRED TIRE PRESSURE FRONT IS 60PSI. THE REQUIRED REAR IS 80 PSI. COLD. THE DIAGNOSTICS ON DASH WARN YOU WHEN THE PRESSURE IS HIGH OR LOW BY 2LBS. THE PART THAT BOTHERS ME IS I PRIMARILY DRIVE THE TRUCK EMPTY AND IT IS VERY SQUIRRELLY AND HARD RIDING WHEN EMPTY AND TIRES AT 80 PSI. ESPECIALLY IN WET WEATHER. THE OTHER THING THAT BOTHERS ME IS THE TIRES ARE SIZE 245 75 R 16 E DESIGNED FOR NO MORE THAN 80 PSI COLD. THERE IS NO ROOM TO ALLOW LOWERING TIRE TO A SAFE PRESSURE WHEN TRUCK IS EMPTY. THE ONLY OTHER SOLUTION IS TO ADD WEIGHT TO THE BED OF THE TRUCK TO PUT TRACTION TO REAR TIRES AND I DON'T THINK THAT IS REALISTIC. BEFORE SOMEONE HAS AN ACCIDENT TRYING TO OBEY THE LABEL MAYBE THIS LABEL AND DIAGNOSTICS SHOULD BE CHANGED. *TR

• Engine And Engine Cooling2

  • Filed Dec 2008

    CHECK ENGINE LIGHT COMES ON AND ENGINES GOES INTO REDUCED POWER MODE. DOESN'T HAVE ENOUGH POWER TO GO OVER 40 MPH. WHILE PULLING A TRAILER THE ENGINE DOESN'T HAVE ENOUGH POWER TO CLIMB HILLS OR GO OVER 25 MPH. I HAVE TAKEN TO DEALER TWICE AND THEY SAY GM IS AWARE OF THE PROBLEM BUT THEY DON'T HAVE A FIX FOR IT. IT'S NOT SAFE HAVING A VEHICLE THAT BREAKS DOWN IN -15 DEGREE WEATHER AND HAVING THE DEALER TELL YOU THAT THERE IS NO FIX FOR THE PROBLEM AND TO JUST KEEP DRIVING THE VEHICLE. *TR

  • Filed Jul 2007

    TL*THE CONTACT OWNS A 2007 GMC SIERRA 2500. THE CONTACT STATED THAT THE VEHICLE'S COOLANT IS CONSTANTLY LOW. THE WARNING LIGHT INDICATED A LOW COOLANT LEVEL. THE DEALER DIAGNOSED THE CAUSE OF FAILURE AS THE O RING MISSING FROM THE FLY WHEEL HOUSING COOLANT. THE DEALER REPAIRED THE VEHICLE, HOWEVER, THE LOW OIL INDICATOR LIGHT ILLUMINATED. THE DEALER DIAGNOSED THE CAUSE OF FAILURE AS AN OIL FILTER LEAK. THE SEALS AND OIL FILTER WERE REPLACED. WHEN THE CONTACT PICKED UP THE VEHICLE, HE NOTICED AN OIL LEAK. THE VEHICLE HAS NOT BEEN REPAIRED. THE CURRENT MILEAGE IS 4,000 AND FAILURE MILEAGE WAS 650.

• Engine1

  • Filed Mar 2015

    GENERAL MOTORS GMC SIERRA DURAMAX EQUIPPED PICK UP TRUCKS (LMM SERIES) HAVE AN ISSUE WITH LEAKING TRANSMISSION COOLING LINES WHERE THE RUBBER HOSES ARE CRIMPED TO THE STEEL CONNECTORS. THE PROBLEM IS A FIRE HAZARD DUE TO LEAKING TRANSMISSION FLUID. GM HAS ALREADY ISSUED REPLACEMENT OF THESE HOSES FOR THE 2008 MODEL YEAR. IN 2007 GM HAD A SPLIT YEAR OFFERING FOR THE DURAMAX. THE 2007 VERSION WAS A SERIES LBZ. IN THE SECOND HALF OF 2007 (DUE TO EMISSIONS REQUIREMENTS) GMC INTRODUCED THE MODEL YEAR DESIGNATION 2007.5. THE 2007.5 WERE THE FIRST OF THE LMM SERIES. THE 2007.5 ARE IDENTICAL TO MODEL YEAR 2008. THE 2007.5 LMM SERIES HAVE THE SAME LEAKING TRANSMISSION COOLER LINES AND SHOULD BE INCLUDED IN THE SAME DECISION AS THE 2008 MODELS. SINCE THE 2007.5 SHOW UP AS "2007" MODEL YEAR THEY HAVE NOT BEEN INCLUDED. GM HAS MISSED THIS SMALL GROUP OF 1/2 YEAR VEHICLES (I BELIEVE AN OVERSIGHT) IN THE HOSE REPLACE RECALL. SINCE THIS ISSUE HAS ALREADY BEEN IDENTIFIED FOR 2008 VEHICLES THE SAME ISSUE APPLIES FOR 2007.5 MODELS. THEY SHOULD ALSO BE INCLUDED BUT CURRENTLY ARE NOT. I'M HOPING THAT THE AWARENESS OF THE UNUSUAL SPLIT YEAR MODELS (SERIES LMM) IS REALIZED AND THEIR VIN NUMBERS ADDED TO THE RECALL. *TR

• Wheels1

  • Filed Nov 2014

    I OWN A 2007 GMC SIERRA 2500HD PICKUP WITH 94278 MILES ON IT. THIS WEEK END THE RIGHT FRONT WHEEL BEARING ASSY FAILED FOR THE SECOND TIME, AND THE LEFT ONE WAS ON ITS WAY TO FAILING. AT A COST OF 375.00 EACH I REPLACED BOTH SIDES. THIS SEEMS VERY EXCESSIVE TO ME TO HAVE TO REPLACE THE WHEEL BEARINGS FOR THE SECOND TIME WITH LESS THAN ONE HUNDRED THOUSAND MILES ON THE VEHICLE. *TR

• Gasoline1

  • Filed Feb 2010

    AS I WAS LEAVING LAS VEGAS ON I 15, I GOT A MESSAGE OF REDUCED POWER. I WAS JUST OUT OF HEAVY TRAFFIC, TRAVELING ABOUT 70 MPH, WHEN THE ENGINE SLOWED TO ABOUT 1,000 RPM WITH OUT WARNING. FOUND OUT LATER THAT IT WAS A BROKEN LEAD WIRE TO THE THROTTLE POSITION SENSOR. THE TRUCK HAD ABOUT 37,000 MILES ONIT. THE TRUCK IS A 2007 2500HD WITH 6.0 ENGINE. THE TRUCKI HAS NEVER BEEN WORKED ON,AND IS LINE NEW. DEALER INSTALLED P/N 88986255 CONNECTOR. I RECEIVED HALF OR THE COST BACK AFTER CALLING GMC. I FEEL THAT THIS IS A SAFETY PROBLEM. AS I WAS JUST OUT OF HEAVY TRAFFIC AND COULD PULL OFF OF THE ROAD. *TR

• Visibility1

  • Filed Feb 2008

    2007 GMC SIERRA IS BLOWING EXTREMELY HOT AIR BUT IT WILL NOT CLEAR ICE FROM WINDOW. CONSUMER STATES THAT THE AIR IS SO HOT IT BURNS AND YOU CAN'T PLACE YOUR HAND ON THE DASH BECAUSE IT IS THAT HOT. BUT HE SAYS IT WILL NOT DEFROST THE WINDOW. *KB THE CONSUMER STATED THE DEFROSTER DID NOT DEFROST THE UPPER PART OF THE WINDSHIELD, ONLY THE LOWER PART. *JB

• Trailer Hitches1

  • Filed Jul 2007

    TL*THE CONTACT OWNS A 2007 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE RECEIVER PART OF THE HITCH SEPARATED AND FELL TO THE GROUND WITH THE TRAILER ATTACHED. THE TRAILER HITCH HAS TO BE REPLACED. THE CURRENT MILEAGE IS 1,600 AND FAILURE MILEAGE WAS 1,400.

Safety ratings

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

NHTSA hasn't published star ratings for this truck. Many heavy-duty pickups aren't included in NHTSA's crash-test program, so this doesn't mean the truck is unsafe.