NHTSA Complaint #11581218 — 2018 GMC TERRAIN SERVICE BRAKES

Complaint Details

ODI Number	11581218
Vehicle	2018 GMC TERRAIN
Component	SERVICE BRAKES
Date of Incident	April 4, 2024
Date Filed	April 4, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	FL

Consumer Description

While driving on the interstate the brakes all the sudden stopped working. I was able to stop the vehicle by pulling over to the shoulder of the road. I received a warning saying service brake assist and a check engine light after the brakes went out. The vehicle later shut off and is no start with no warning codes. I am currently towing the vehicle to a mechanic. Several people claim to have the same issue online stating that it is an issue with the brake vacuum booster shearing off in the exhaust cam which then causes major damage to the engine. It appears the same issue exists with several other GMC models that were already recalled

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Other SERVICE BRAKES Complaints

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#11676088 — July 25, 2025 — Difficulty with power assistive braking when traveling at low speeds

#11673291 — July 14, 2025 — Component Affected: Service Brakes, Hydraulic – Brake Vacuum Pump Summary of the Problem: I am reporting a serious ...

#11667521 — June 17, 2025 — My car started experiencing a strange problem while braking on June 15. I released the parking brake leaving my paren...

#11655816 — April 21, 2025 — Brake booster went out and lost all braking ability on interstate doing 65 mph in spring of 2022 - had brake booster...

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