Table 1 shows one common service brakes related problems of the 2023 GMC Sierra 3500.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
The contact owns a 2023 GMC Sierra 3500. The contact stated that while driving approximately 60 mph, the messages "service charging system" and "service diesel emissions system" were displayed and suddenly the power steering and power brakes malfunctioned, causing the contact to almost lose control of the vehicle. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 79,000.
Critical part failure - the master cylinder attached to the brake pad is leaking at the seal where the piston is depressed into the cylinder. It's leaking brake fluid onto the driver brake assembly and some sort of cable. While this is repairable under warranty, this should never ever happen on a vehicle. Arguably, the main part on the most critical system on the car - the brakes. Please investigate whether gm should be responsible for replacing this part on any affected vehicle for the life of the vehicle thank you for all you do to keep us safe! have a great day.