Table 1 shows seven common service brakes related problems of the 2007 GMC Sierra. The number one most common problem is related to the brake hoses, lines/piping, and fittings (14 problems). The second most common problem is related to the service brakes (five problems).
Metal brake lines rusted prematurely @ 29,900 miles causing brake line to rupture. This caused brake failure. Truck had to be towed to dealer who diagnosed rusted brake lines. For future safety all metal brake lines on truck required replacement. Read details...
The contact owns a 2007 GMC Sierra. The contact stated that after starting the vehicle, the service stability track, the service traction control, and the anti lock braking system lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. Read details...
Noticed a puddle of fluid on the garage floor. Investigated and found it to be brake fluid. The entire reservoir emptied on the floor after a day. I had a hole in one of the brake lines under the drivers side. Looking under the truck all the line were terribly corroded and could break at any time . Read details...