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Electrical systemPart report

2015 GMC Sierra 1500 Electrical system Problems

Complaints
96about this part
Share
13%of 720 total for the year
Median mileage
46,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 96 complaints about the electrical system of the 2015 GMC Sierra 1500, 13% of the 720 complaints for this model year. Where a mileage was given, the median is 46,000 miles. 1 of these say a crash was involved and 6 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Rear window defroster started smoking and created a burning plastic smell. After turning off the rear defroster the rear window exploded/shattered in place. I see there is a recall in canada, but not here. This is happening here and I have read of many others with same issue. Fire and broken glass is not safe and should be addressed”

NHTSA complaint #11394928, filed 2021-02, 105,000 miles

“While driving home the other night both headlights failed at the same time. Lost both high beam and low beam. Tried everything to get them on with no luck. Interment panel showed that they were still on. This was very scary and dangerous as I has traveling on a major highway. Luckily I had fog light to give me some light to gt off the highway safely.”

NHTSA complaint #11374270, filed 2020-11, 5 miles

“At slow speeds, mainly when backing and turning wheel when going forward at very slow speed, steering loses power. Also some times hard to turn when vehicle not in motion at all. The last time it happened all interior lights and radio flashed totally off and right back on. I heard a dinging/warning noise and a warning message flashed but went off before I had a chance to read it.”

NHTSA complaint #11319616, filed 2020-03, 62,000 miles

“Sierra 2015 rear power window defroster over heated and shatter my driver side rear window. Prior to shattering, I smelled electric wires burning than pop. The vehicle was in motion around 25mph. The rear defroster was not on. It was 30deg outside and clear.”

NHTSA complaint #11306424, filed 2020-02, 24,892 miles

“On numerous occasion the vehicles intierior audio chimes do no alert if doors are open, seatbelts are fastened, or blinkers are working. In 2014 the general motors recall number 14315 addressed this issue but GM states my VIN number does not included the vehicles affected even though its exactly as they describe in the recall campaign in 2014. They want me to pay for the diagnostic and repair despite it being a safety issue and a recall they addressed in the past.”

NHTSA complaint #11234777, filed 2019-07, 60,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20262014%
20252621%
20244311%
20236413%
20228314%
20217613%
20208117%
20199514%
20184314%
20175415%
20165416%
20159613%
201412917%
201365%
201287%
2011176%
2010106%
2009209%
2008318%
2007228%
20062014%
20056738%
20048138%
20034324%
200232%
200175%
200053%
199985%
199835%
199722%
1996120%

Other parts of the 2015 GMC Sierra 1500

Brakes
229 complaints
Transmission and drivetrain
99 complaints
Exterior lighting
93 complaints
Engine
84 complaints
Steering
81 complaints
Other or unknown
67 complaints
Air bags
37 complaints
Body and structure
28 complaints
Visibility (wipers, defrost, mirrors)
26 complaints
Suspension
17 complaints
Seat belts
16 complaints
Electronic stability control
13 complaints

← All problems reported for the 2015 GMC Sierra 1500

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