2018 GMC Terrain Service Brakes Problems
NHTSA component category: SERVICE BRAKES · 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 service brakes ranks on this vehicle
Share of the 212 complaints citing each category; one complaint can cite several. Full breakdown on the 2018 GMC Terrain overview page.
What owners report
“While getting off the interstate, the brakes failed with no prior warning, or issues. The brake pedal became extremely difficult to depress and stopping distance…”NHTSA complaint 11476977 — filed 08/01/2022
“6/3/22 I went to the grocery store which is on a four lane road. When I left the store I had no brakes. On a…”NHTSA complaint 11467275 — filed 06/03/2022
“I was driving out of town (2 hrs from home) with my 2 small children and my mother, when I tried to slow to come…”NHTSA complaint 11466812 — filed 05/31/2022
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Service Brakes complaints by year filed
Frequently asked questions
Does the 2018 GMC Terrain have service brakes problems?
Service Brakes is the most-reported problem area on the 2018 GMC Terrain: 64 of 212 complaints on file (30.2%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2018 GMC Terrain have in total?
212 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 14 involved a crash, 1 involved a fire, 12 reported injuries, and none reported deaths.
What does NHTSA's service brakes category include?
NHTSA assigns each complaint to standard component categories; this page reports the SERVICE BRAKES category exactly as NHTSA defines and records it.
