Know Your Truck

2024–2026 Chevrolet Silverado EV and GMC Sierra EV common problems and fixes

The warning owners talk about most is "Service High Voltage System", which some owners report ended with a new battery pack.

What owners should know

Covers 2024–2026 · Electric · Updated 2026-10-06

The Silverado EV and its GMC twin, the Sierra EV, are full-size electric pickups built on GM's Ultium battery platform, with a midgate that opens the cab into the bed.

We counted only 63 owner complaints filed with NHTSA for 2024–2026 Silverado EVs and Sierra EVs (retrieved October 5, 2026; each complaint counted once), all from trucks whose VIN shows an electric drivetrain; no complaints had a VIN belonging to another vehicle. That's too few to show a clear pattern, partly because relatively few have been sold. Complaint counts show what owners report most often, not how many trucks have a problem.

At a glance

  • Complaints are spread out. NHTSA files the most under the electrical system (21) and forward collision avoidance (10).
  • Owners on Silverado EV Forum describe "Service High Voltage System" warnings, sometimes ending in a new battery pack.
  • Recalls cover drive motor wiring, seat belts, wheels, the high-voltage battery and lights on certain trucks; check the VIN.

Recalls to check

  • Rear drive motor wiring that can short and cause a loss of drive power on certain 2024 trucks (24V320000)
  • Seat belt bolts or parts on certain 2024–2025 trucks (23V786000, 24V087000, 25V015000)
  • Steel wheels that can crack on certain 2026 trucks (26V496000)
  • High-voltage battery part that may not be secured on certain 2026 trucks (26V494000)
  • Stability control warning light that may not come on on certain 2026 trucks (25V594000)
  • Front turn signals too similar to the parking lights on certain 2024 Sierra EVs (24V755000), and a pedestrian alert that may be too quiet on certain 2025 Silverado EV work trucks (24V937000)

Before you buy

  • Check open recalls at nhtsa.gov/recalls with the VIN, and ask a dealer which factory warranty coverage is left for this VIN; it depends on when the truck was first sold and its mileage.
  • Look for warning messages. Don't judge the battery's health by the range shown on the dash, which changes with temperature and driving; ask a GM EV dealer for a battery health check.
  • Bring our used truck inspection checklist.

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.

Sources (12)

Common failures & how to fix them

Parts and video buttons search for your 2024-2026 Chevrolet Silverado EV. 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.

  • "Service High Voltage System" warning

    Dealer job

    Signs: A "Service High Voltage System" message, reduced power or a truck that won't charge or drive.

    Fix: Take it to a GM EV dealer to read the fault codes; the message has several possible causes. On Silverado EV Forum, some owners report a software fix or a 12-volt battery problem, and others a replacement battery pack. Don't assume the battery pack has failed until the dealer's diagnosis confirms it. Ask a dealer whether this VIN is still within GM's high-voltage battery warranty.

Each year in this generation

Owner complaints filed with NHTSA, compared with the typical truck of the same kind and model year. Open a year for its recalls and complaints.

Chevrolet Silverado EV

GMC Sierra EV

Going to look at one?Bring our free inspection checklist, with these known problems added →