2017 GMC Terrain Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/12/2026
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 133 complaints citing each category; one complaint can cite several. Full breakdown on the 2017 GMC Terrain overview page.
What owners report
“We have been keeping up with all maintenance and oil changes. We have only driven the car for less than a year. At time of…”NHTSA complaint 11688652 — filed 09/20/2025
“Throttle position system all of a sudden went bad. My 2017 Terrain started shaking. I was holding up traffic. The sun couldn't go over 5mph…”NHTSA complaint 11667967 — filed 06/19/2025
“My car lost oil while I was driving. I also lost power. I had my car over to a garage and the mechanic diagnosed it…”NHTSA complaint 11638924 — filed 01/27/2025
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2017 GMC Terrain have transmission & power train problems?
Power Train is the #2 most-reported problem area on the 2017 GMC Terrain: 23 of 133 complaints on file (17.3%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2017 GMC Terrain have in total?
133 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 11 involved a crash, 2 involved a fire, 7 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.
