Verified government source

NHTSA complaint #11742967

This page summarizes an official U.S. National Highway Traffic Safety Administration owner complaint. Use the verification links below to confirm the record directly with NHTSA.

Vehicle

2019 BUICK ENVISION

Manufacturer

General Motors, LLC

Components

SERVICE BRAKES,FORWARD COLLISION AVOIDANCE

Dates

Incident: 05/28/2026
Filed: 06/09/2026

Owner complaint summary

I have a warning on my dash, "Service Brake Assist" that comes on and off, but will not stay on. The dealer says they can't identify the problem unless it stays on and then bring it in. I did some research and find a class action complaint suit in 4 different states, of several GM cars manufactured between 2017 - 2020. Mine is a 2019 Buick Envision. The class action suit identifies the "Brake Vacuum Pump" defect. The defect will be known, when you step on the brake, the pump fails by exploding, and you have little or no brake whatsoever. More than likely causing a car crash and potentially loss of life. So what am I to do ? Wait for the pump failure and CRASH! Please look into this situation and potiential save lives.

This is an owner complaint filed with NHTSA (ODI #11742967). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11742967. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.