2011 GMC Terrain Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 386 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 GMC Terrain overview page.
What owners report
“SINCE I FIRST PURCHASED THE CAR, IT HAS GIVEN NOTHING BUT ISSUES, THE AC WENT OUT WHILE STILL UNDER WARRANTY, IT WAS FIXED SO I…”NHTSA complaint 10851961 — filed 03/28/2016
“THE CONTACT OWNS A 2011 GMC TERRAIN. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING WHILE DRIVING APPROXIMATELY 65 MPH. THE VEHICLE WAS TOWED…”NHTSA complaint 10790585 — filed 11/16/2015
“THE CONTACT OWNS A 2011 GMC TERRAIN. WHILE DRIVING APPROXIMATELY 35 MPH, THE TRANSMISSION BEGAN TO HESITATE AND JERKED. IN ADDITION, THE TRANSMISSION SLIPPED GEARS…”NHTSA complaint 10763161 — filed 09/11/2015
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2011 GMC Terrain have transmission & power train problems?
Power Train is the #2 most-reported problem area on the 2011 GMC Terrain: 71 of 386 complaints on file (18.4%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2011 GMC Terrain have in total?
386 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 11 involved a crash, 8 involved a fire, 24 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
