hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
61,762 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.

2011 GMC Terrain fuel system problems

fuel system problem

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2011 GMC Terrain Owner Comments

problem #4

Dec 222016


  • 124,400 miles


Going to visit son, daughter in law and grandaughter in Virginia from Michigan. Got reduced power message with stability control light. First time was without warning on the curvy hilly Pennsylvania turnpike in traffic at appx 70 mph.. lost power on hill had no acceleration, vehicle decelerated in front of traffic. Put on hazards and worked our way over to shoulder across 2 lanes of traffic. Thank god this didn't cause a pileup of holiday travelers. Stopped vehicle, engine was misfiring, there was no throttle response. Shut off engine and restarted, power was back but check engine light is on. Continued trip, 2nd incident was about 1 hour later also without warning. Had about 5 incidents this trip.

- Grand Ledge, MI, USA

problem #3

Sep 052015


  • 58,500 miles
Upon entering garage, smelled odor of gas by car...looked underneath, ,small puddle of fuel, ,closer examination found pinhole in rust patch on fuel line..other rust areas noticed, but this was only leak.corrosion is to be expected.but not to the point of failure after only 4 and one half years..car was bought new and well maintained, also always garage kept.being out of warranty (of course!), I had to negoitiate with the dealer for a decent cost of the repair..I believe inferior quality is to blame and believe this can and will happen to others, hopefully without serious consequences...

- Plymouth, MI, USA

problem #2

Feb 122015

Terrain 4-cyl

  • 44,000 miles
While driving the vehicle stalled from 35-40 mph to 5 mph. A message came on the screen " engine power reduced". had I been on highway that would be ended in accident. Contacted GM and everyone I have been talking to them seems to be reading a script to me.

- Franklin Lakes, NJ, USA

problem #1

Nov 142012

Terrain 4-cyl

  • 20,150 miles
The vehicle just stops while driving, this is very dangerous and can cause a major accident. Dealer said the fuel pump was leaking!..for an almost brand new car this was unacceptable!..now it just happened again..the vehicle stops/the engine shuts down while driving!..im taking the vehicle again to the dealership to see what they say...

- San Antonio, TX, USA

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