GMC Envoy owners have reported 4 air brake related problems since 1996. Table 1 shows the 3 most common air brake problems. The number one most common problem is related to the vehicle's air brake antilock (2 problems). The second most common problem is related to the vehicle's air brake wheel speed sensor (1 problem). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Air Brake Antilock problems | |
| Air Brake Wheel Speed Sensor problems | |
| Air Brake Disc Rotor problems |
While traveling at or less than 35 mph, on bright sunny day and on dry pavement vehicle would not stop, brake pedal went to the floor. Let it up and pressed it to the floor again without success. On third attempt jammed the pedal to the floor and the entire car locked up. Read details...
Problem with anti-lock brake sensor; anti-lock brakes kick in at low speeds 5-10 mph Read details...
The rotors on our 2003 GMC Envoy completely rusted out, to the extent that they could not even be turned, 13 months after purchase. There was approximately 1/3 of the brake pads still unused. We had to replace all rotors and pads, as the rotors scored the pads. Read details...