2018 GMC Sierra 1500 Service Brakes Problems
NHTSA component category: SERVICE BRAKES · data through 11/01/2026
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 305 complaints citing each category; one complaint can cite several. Full breakdown on the 2018 GMC Sierra 1500 overview page.
What owners report
“While driving parking lot speeds, when I pressed the brake pedal, it was very very difficult to push causing me to nearly rear end the…”NHTSA complaint 11447060 — filed 01/11/2022
“Im getting a service trailer brake system soon message on dash.”NHTSA complaint 11447033 — filed 01/11/2022
“At 50,000 miles the "service trailer brake system" error message appears constantly due to factory defects and its very common. These trucks should be recalled…”NHTSA complaint 11446097 — filed 01/04/2022
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 Sierra 1500 have service brakes problems?
Service Brakes is the #4 most-reported problem area on the 2018 GMC Sierra 1500: 40 of 305 complaints on file (13.1%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2018 GMC Sierra 1500 have in total?
305 complaints were on file with NHTSA as of 11/01/2026. Across all categories, 10 involved a crash, 1 involved a fire, 5 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.
