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Transmission and drivetrainPart report

2015 GMC Sierra Transmission and drivetrain Problems

Complaints
6about this part
Share
11%of 53 total for the year
Median mileage
4,900miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the transmission and drivetrain of the 2015 GMC Sierra, 11% of the 53 complaints for this model year. Where a mileage was given, the median is 4,900 miles. 2 of these say a crash was involved, according to the filers. 2 recall campaigns on record are 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.

“Driving north on the garden state parkway in the center lane it felt like I had a back tire blowout but what happened was my rear axle broke causing my vehicle to be extremely hard to control. I was trying to steer the vehicle but could not control the truck, it felt like I had limited braking ability, smashing into guardrail it finally came to a stop.”

NHTSA complaint #10839187, filed 2016-03, 16,469 miles

“Vehicle randomly and repeatedly shifts into neutral from drive, witout any input from driver, during normal driving conditions. Vehicle randomly and repeatedly loses accelerator pedal control and functionality during normal driving conditions.”

NHTSA complaint #10766547, filed 2015-09, 20,865 miles

“2015 Gmc Sierra. While the vehicle was parked, it began to coast backwards and collided into the side of a building without warning. The air bags did not deploy. There were no injuries and a police report was not filed. After the crash, the gear shifter remained in park. The vehicle was not diagnosed, but was currently being repaired for damages sustained from the crash. The VIN was not included in NHTSA campaign number: 14v374000 (power train). The manufacturer was not made aware of the failure. The failure mileage was approximately 8,000. The consumer who wrote in, works at the car wash. …”

NHTSA complaint #10767492, filed 2015-09, 8,000 miles

“The contact owns a 2015 Gmc Sierra. The contact stated that while descending down hill at night, the low beam head light provided poor visibility. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 5. Updated 03/30/15 updated 06/23/2015”

NHTSA complaint #10690231, filed 2015-02, 5 miles

“The contact owns a 2015 Gmc Sierra. The contact stated that while driving at various speeds, the transmission vibrated causing a hesitation when the gears shifted. The contact mentioned that the failure was most severe while driving at speeds between 40-50 MPH. The vehicle was taken to a dealer who changed the gear ratio and adjusted the rear end. The vehicle was repaired, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was 250.”

NHTSA complaint #10747035, filed 2015-08, 250 miles

Related recalls

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
20172338%
2015611%
20141010%
2013513%
201227%
2011614%
201013%
200823%
200747%
200624%
2005119%
20041810%
20032914%
2002187%
2001145%
2000266%
1999376%
1998158%
19972812%
19962410%
1995125%
199463%
19931014%
199227%
1990211%
1988117%

Other parts of the 2015 GMC Sierra

Exterior lighting
30 complaints
Steering
6 complaints
Air bags
4 complaints
Brakes
3 complaints
Other or unknown
3 complaints
Engine
2 complaints
Fuel system
2 complaints
Seats
2 complaints
Body and structure
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Electrical system
1 complaints
Engine cooling
1 complaints

← All problems reported for the 2015 GMC Sierra

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