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Electrical systemPart report

2014 GMC Sierra 3500 Electrical system Problems

Complaints
1about this part
Share
14%of 7 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the electrical system of the 2014 GMC Sierra 3500, 14% of the 7 complaints for this model year.

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.

“Transmission control module failed. Reduced power to vehicle to first gear. Blinkers, speedometer door locks, and other Safety and driving devices did not work. Check engine turned on. Device is held at some gmc dealerships nationally however they will not sell the part to have the truck repaired.”

NHTSA complaint #11492176, filed 2022-11

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 2014 GMC Sierra 3500

Fuel system
2 complaints
Vehicle speed control
2 complaints
Brakes
1 complaints
Engine
1 complaints
Exterior lighting
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2014 GMC Sierra 3500

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