2015 GMC Terrain problems and complaints

Owners have filed 315 complaints with NHTSA about the 2015 GMC Terrain. The most-reported areas: Visibility/Wiper (102), Engine (81), Electrical System (35).

Key takeaways

  • 315 owner complaints on file with NHTSA.
  • 10 involve a crash, 1 a fire, 7 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Visibility/Wiper10232%
Engine8126%
Electrical System3511%
Exterior Lighting3010%
Power Train268%
Unknown Or Other227%
Visibility206%
Air Bags165%
Fuel/Propulsion System165%
Structure144%
Service Brakes113%
Electronic Stability Control (esc)93%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2015 GMC Terrain SUV AWD4/54/55/54/5
2015 GMC Terrain SUV FWD4/54/55/54/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Engine - filed 2026-07-22

I am submitting this complaint regarding the engine timing chain failure in my 2015 GMC Terrain because I believe it presents a serious safety hazard. Before the failure, the vehicle began experiencing intermittent symptoms, including engine jerking, shaking, rough operation, abnormal engine noises, and an intermitten...

Service Brakes, Hydraulic - filed 2026-07-20

The contact owns a 2015 GMC Terrain. The contact stated that while driving 5 MPH, the brake, ABS, and stabili-trak warning lights were illuminated. The dealer was contacted and diagnosed the vehicle with an Electronic Brake Control Module failure. The dealer stated that the manufacturer no longer manufactured parts to ...

Air Bags - filed 2026-06-11

I hit a deer and it totaled my vehicle and the Airbags did not deploy

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More for the 2015 GMC Terrain

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.