2015 GMC Terrain transmission problems
The 2015 GMC Terrain has 21 transmission complaints filed with NHTSA — 5% of the year's total, and down from the prior model year.
21
Transmission complaints
5%
Share of year
0
Crash-involved
0
Related recalls
Transmission complaints by year
What owners report
“2015 GMC TERRAIN. CONSUMER WRITES IN REGARDS TO SUDDEN LOSS OF ENGINE POWER, ACCELERATOR PEDAL AND THROTTLE FAILURES. *SMD THE CONSUMER STATED WHEN SHE TRIED TO ACCELERATE, THE VEHICLE BARELY MOVED. THE CONSUMER TURNED OFF THE VEHICLE AND RE-STARTED IT, WITH THE SAME RESULTS. THE ENGINE WOULD JUST…”
Common questions
How many transmission complaints does the 2015 GMC Terrain have?
NHTSA has 21 complaints about the 2015 GMC Terrain transmission — 5% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.