One problem related to brake master cylinder has been reported for the 2015 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 GMC Sierra 2500 based on all problems reported for the 2015 Sierra 2500.
I was driving in my city and the brakes were fine prior. I was coming up to a stop sign and all of the sudden my brake pedal was going to the floor. I could not stop within reason. Luckily no one was in the crosswalk or I would have hit them. I used the e-brake and my exhaust brake to help so me slow down. I was doing about 35mph. I took the truck home immediately as safe as I could. I called the gm dealership by me and took it to them. They are only a few miles away and I took back roads to avoid trouble. I was informed by the gm dealership that there was an internal failure of the brake booster and master cylinder. $654. 00 dollars to repair my 2500 denali truck. I called gm service already and they informed me my truck was not under the recall. This issue obviously exists to more vehicles than what they specify and you could lose brakes at any moment. Gm needs to rectify their truck brake situation. Someone will end up getting killed.
| Brake Fluid Leak problems | |
| Brake Master Cylinder problems |