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Electrical systemPart report

2014 GMC Sierra 2500 Electrical system Problems

Complaints
4about this part
Share
13%of 30 total for the year
Median mileage
22,795miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2014 GMC Sierra 2500, 13% of the 30 complaints for this model year. Where a mileage was given, the median is 22,795 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.

“The rear sliding window stopped working after I tried to open it using the switch located near the rearview mirror. It had only been opened less than 12 times.”

NHTSA complaint #11300382, filed 2020-01, 22,890 miles

“Backing out of driveway, suddenly lost the transmission. I was stranded at about a 45-degree angle into the traffic lane. I had no gear position indication (an automatic) and couldn't move the truck under it's own power. Shut it off and restarted twice before I got it into limp-mode and, while abrupt and harsh, managed to get back into my driveway. Found fault code U0101, Lost Communication with TCM (Transmission Control Module). Had never heard that this has become a common problem. …”

NHTSA complaint #11540851, filed 2023-08

“I purchased this truck november 26 2016, within a month I was sitiing in my driveway I turned the truck on when I went out to go to work in the morning I got a bunch of flashing lights service stabilitrak, service 4wheel drive, service traction control, made multiple attempts to contact five star auto in biddeford, brought the truck in they refused to fix issues, asked for a trade nothing on the lot was worth purchasing without putting me out more than I already owed,christmas morning the truck was towed to weirs in arundel they pulled the truck apart and found a bunch of wires were corroded…”

NHTSA complaint #11013622, filed 2017-08

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026538%
202514%
20243331%
2023618%
20221227%
2021612%
20201316%
2019928%
2018720%
2017616%
2016915%
20151112%
2014413%
201337%
2012413%
2011914%
2009723%
200835%
200756%
200646%
20054237%
20044834%
20033623%
200211%
200143%
200036%
199926%
199817%

Other parts of the 2014 GMC Sierra 2500

Other or unknown
7 complaints
Air bags
6 complaints
Steering
6 complaints
Engine
3 complaints
Fuel system
3 complaints
Transmission and drivetrain
3 complaints
Electronic stability control
2 complaints
Vehicle speed control
2 complaints
Brakes
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints

← All problems reported for the 2014 GMC Sierra 2500

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