2019 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 177 complaints citing each category; one complaint can cite several. Full breakdown on the 2019 GMC Terrain overview page.
What owners report
“The contact owns a 2019 GMC Terrain. The contact stated while driving approximately 40 MPH, the accelerator was depressed to overtake a vehicle; however, the…”NHTSA complaint 11544078 — filed 09/12/2023
“There are 3 recalls and one open on this car I was sold by a dealership, none of them ever fixed. I drive to work…”NHTSA complaint 11541086 — filed 08/28/2023
“In July 2022 vacuum pump failed and created a hard brake situation going 55 mph downhill. Vehicle removed from roadway safely, transported and vacuum pump…”NHTSA complaint 11533121 — filed 07/18/2023
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2019 GMC Terrain have transmission & power train problems?
Power Train is the #3 most-reported problem area on the 2019 GMC Terrain: 50 of 177 complaints on file (28.2%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2019 GMC Terrain have in total?
177 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 7 involved a crash, 3 involved a fire, 12 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.
