2021 GMC Sierra 1500 Electrical System Problems
NHTSA lists 75 electrical system complaints for the 2021 GMC Sierra 1500, 13% of its 570 total complaints, with a median failure mileage of 23,300 miles. No related recall is on file for this problem area.
- Electrical System complaints
- 75
- 13% of 570
- Crashes reported
- 0
- Fires reported
- 3
- Injuries reported
- 0
- Median mileage
- 23,300 mi
- Related recalls
- 0
Typical electrical symptoms owners report
- Owners report the electric power steering and electronic stability control failing simultaneously, sometimes triggering warning messages and steering seizure.
- Some describe the infotainment/console screen going completely black while driving or using the phone speaker system, then restarting on its own.
- One owner reported the body control module throwing repeated error codes that the dealer could not diagnose or resolve after multiple days in the shop.
- Several complaints describe the vehicle shutting off or acting as if in neutral even while shifted into drive, with the truck rolling unexpectedly.
- One owner reported the auto stop/start feature causing a dangerous delay when restarting from a stop while pulling into traffic.
When 2021 GMC Sierra 1500 electrical complaints were filed
First complaint Dec 7, 2020, latest Sep 15, 2026.
Electrical System recalls for the 2021 GMC Sierra 1500
No safety recalls on record for this model year.
Electrical System complaints by Sierra 1500 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many electrical complaints does the 2021 GMC Sierra 1500 have?
- NHTSA lists 75 electrical system complaints for the 2021 Sierra 1500, which is 13% of the 570 total complaints filed for that model year.
- Is there a recall for the 2021 Sierra 1500 electrical system?
- No related recall is listed in the data for the electrical system on the 2021 Sierra 1500.
- At what mileage do electrical problems typically show up?
- The median mileage at failure for electrical system complaints on the 2021 Sierra 1500 is 23,300 miles.
- Did the electrical issues cause any fires or crashes?
- NHTSA data shows 3 fires and 0 crashes and 0 injuries associated with this problem area on the 2021 Sierra 1500.
- How does 2021 compare to other Sierra 1500 years for electrical complaints?
- The 2021 Sierra 1500's electrical complaints are 13% of its total, lower than the 2014 model year's 39% and 2015's 27%, but similar to 2020's 17% and 2022's 14%.