fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
9,154 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 GMC Terrain engine problems

engine problem

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2015 GMC Terrain Owner Comments

problem #3

Sep 022016


  • 24,461 miles


The contact owns a 2015 GMC Terrain. The contact heard an abnormal noise coming from the vehicle. The dealer diagnosed that the water pump, timing belt, gasket kit, and chain links for the timing belt failed and needed to be replaced. The vehicle was repaired. After being serviced, the vehicle later began to lunge forward and the gears attempted to shift. The vehicle was taken back to the dealer where it was diagnosed that the transmission was slipping. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 24,461.

- Mt Laurel, NJ, USA

problem #2

Jun 022016


  • miles
Engine keeps shutting off while driving; would have to guide the car off the road and restart. Radio shuts off; all electrical systems shut off and car would have to be restarted. This has been happening after the car was purchased sporadically since last year. The vehicle was turned in for service on the issue, however I was informed that they found nothing wrong. Just this past week till now, the cars engine and electrical system starting shutting down again while driving or while in parking mode at least more than 6 times.

- Hagatna, GU, USA

problem #1

Mar 222015


  • 3,000 miles
To whom it may concern, yesterday, 3/22/15, my wife and I were driving while carol took her foot off the gas pedal as we were approaching a stop light. At that time the car started accelerating. Is this a new problem or has it been reported before" who do I contact to investigate this issue and ensure that my vehicle is safe" my daughter bought a 2014 GMC Terrain last year and I'm concerned about her vehicle as well.

- Essex, VT, USA

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