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Electrical systemPart report

2022 GMC Sierra 3500 Electrical system Problems

Complaints
7about this part
Share
22%of 32 total for the year
Median mileage
35,654miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the electrical system of the 2022 GMC Sierra 3500, 22% of the 32 complaints for this model year. Where a mileage was given, the median is 35,654 miles.

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.

“Various warning lights are coming on sincve I purchased this vehicle, such as ABS, engine power reduced, oil changing service, service engine light, service trailer brake system, wheel tracking, service ESC, passing gear cuts out. My vehicle has been in the shop many times and is in the shop now. I have a deep concerned for the safety performance of this vehicle for myself and my family.”

NHTSA complaint #11622646, filed 2024-10

“While driving the truck began switching between towing, normal, and off-road driving modes. Lights were flickering and various messages were being displayed on the dash cluster screen. After parking truck and shutting it off all of the lights were flickering and I was unable to start the truck. Charging the batteries did nothing nor was I able to jumpstart the truck with another diesel. After repairs for these issues, at some point the odometer reset and while likely not certain it reset to zero. …”

NHTSA complaint #11593194, filed 2024-06

“The contact owns a 2022 GMC Sierra 3500 equipped with a 2024 Gatormade 35+5 Trailer. The contact stated that while driving on several occasions, the Check Trailer Wiring message was displayed. Additionally, when the brake pedal was depressed however, the trailer did not slow as intended; however, the rear brake lights were illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 40,000.”

NHTSA complaint #11604806, filed 2024-07, 40,000 miles

“The contact owns a 2022 GMC Sierra 3500. The contact stated while the vehicle was parked, the trailer plug was connected, and electrical fuses popped. The contact stated that all the fuses were blown. In addition, the contact stated while driving the vehicle, the trailer brakes failed to function as intended. The contact stated that the trailer brakes went off and on. The vehicle was taken to the dealer where it was diagnosed with trailer brake control module failure. The contact was informed that the trailer brake control module needed to be replaced. The vehicle was repaired. …”

NHTSA complaint #11623195, filed 2024-11, 31,308 miles

“Encountering trailer brake issue where the brakes on our 5th wheel do not activate via the GMC Trailer Brake control module. Have just had it replaced and still experiencing the same issue where it posts an alert on the screen multiple times and does not activate brakes on trailer. This is a widely known issue with GMC trucks and the trailer brake that has been outstanding for over 3 years now and is a safety issue as there doesn't appear to be a fix from any dealerships or GMC. GMC has not taking adequate accountability for this issue. …”

NHTSA complaint #11602043, filed 2024-07

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026120%
2025318%
20241631%
2023414%
2022722%
2021420%
2020918%
2019323%
2018214%
2017323%
2016211%
2015619%
2014114%
201317%
2012222%
2011210%
2009120%
200814%
2007213%
2005313%
2004521%
2003114%
200113%
200014%
199915%
199818%

Other parts of the 2022 GMC Sierra 3500

Transmission and drivetrain
6 complaints
Other or unknown
5 complaints
Tires
5 complaints
Brakes
4 complaints
Engine
3 complaints
Body and structure
3 complaints
Air bags
2 complaints
Back-over prevention (rear camera)
2 complaints
Exterior lighting
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Fuel system
1 complaints
Seat belts
1 complaints

← All problems reported for the 2022 GMC Sierra 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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