2018 GMC Sierra 1500 Service Brakes Problems

NHTSA component category: SERVICE BRAKES · data through 07/12/2026

39Service Brakes complaints

13.3%Of all 293 complaints

#4Most-reported category

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

POWER TRAIN123 · 42%

ENGINE62 · 21.2%

ELECTRICAL SYSTEM40 · 13.7%

SERVICE BRAKES39 · 13.3%

STEERING29 · 9.9%

Share of the 293 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: 39 of 293 complaints on file (13.3%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2018 GMC Sierra 1500 have in total?

293 complaints were on file with NHTSA as of 07/12/2026. 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.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.