2026 GMC Sierra EV Electrical system Problems
- Complaints
- 1about this part
- Share
- 20%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 1 complaints about the electrical system of the 2026 GMC Sierra EV, 20% of the 5 complaints for this model year. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Truck has airbag service issues since day 1. I’ve taken to the dealership and they can’t find any issues even though the service safety system continues to appear. Ac issues and charging issues as well. I’ve attached documentation.”
NHTSA complaint #11767616, filed 2026-09Related recalls
- 26V494000Jul 30, 2026General Motors, LLC is recalling certain 2026 Cadillac Escalade IQ, Escalade IQL, GMC Sierra EV, Chevrolet Silverado EV, and 2022 GMC Hummer EV Pickup…Covers: GMC Sierra EV 2026, Hummer EV Pickup 2022, Chevrolet Silverado EV 2026 +2 more
Related service bulletins
- 11038684Oct 26, 2026Customer Satisfaction Program. Certain vehicles listed above may have a condition in which remanufactured high voltage battery packs were built using modules that were ineligible…
- 11030439Apr 1, 2026Service Update. Certain vehicles listed above may be missing a high voltage header plug on the RESS battery pack drive motor connector. Dealers are to inspect the RESS pack…
- 11024324Sep 4, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11023365May 14, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11019545Apr 24, 2025This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017247Mar 28, 2025This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
Electrical system: other model years
Other parts of the 2026 GMC Sierra EV
2 complaintsAir bags
1 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsForward collision avoidance
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2026 GMC Sierra EV
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology