Two problems related to brake master cylinder have been reported for the 2006 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 GMC Sierra 2500 based on all problems reported for the 2006 Sierra 2500.
Total brake failure due to ruptured hydraulic brake line. No prior warning. Total failure, I thought dual master cylinder would provide some braking.
I am the original owner of this truck was on my way home from shopping, lights on the dash started blinking. I attempted to stop the truck not knowing what was wrong, the brake pedal went to the floor. I stopped the truck with the emergency brake. Opened the hood and the master cylinder was empty. I was close to home so I took the truck home using the emergency brake. I have this truck serviced by the dealer where we bought it new bob hook Chevrolet and also montgomery Chevrolet, who had just serviced this truck and nothing was said about low brake fluid or rusting brake lines. The truck is now in a repair shop waiting for parts. The truck is now not drivable and still at the repair shop.