Brake Fluid Leak problems of the 2003 GMC Yukon

Brakes failed while driving on city street with no warning could not stop at red light. Immediately pulled over and noticed brake fluid leaking from left side of vehicle from a broken brake line.

The contact owns a 2003 GMC Yukon. Without warning, the brake pedal traveled to the floorboard and brake fluid was leaking. A mechanic replaced the rear brake lines; however, 1,000 miles later, the front brake lines also fractured. The mechanic replaced the front brake lines and indicated that there was extensive rust and corrosion. All of the brake lines needed to be replaced or the failure could recur. The VIN was not included in NHTSA campaign number: 04v045000 (service brakes, hydraulic). The manufacturer was notified of the failure. The approximate failure mileage was 100,000.

I had a breaking problem March 2015, corrosion of the brake lines. I have a 2003 Yukon 2500 quadrasteer. I was driving my truck when the brakes went. There was no warning light!!!!! I pushed the brake pedal practically to the floor, I was able to roll into a parking lot. When I got out there was brake fluid pouring out from the brake lines towards the rear of the vehicle. Why gm runs the lines right along the front of the vehicle undercarriage is a mystery to me. It is just going to be exposed to salt! I live in michigan and we use a lot of salt in the winter months. Yes things do rust, but I always wash the undercarriage of my truck! it¿s a case of poor engineering and it leads to premature corrosion. I am a mother of 3 young children and thank god they were not in the vehicle at the time this happened.

Travelling at 25 mph, the brakes were applied and the pedal went all of the way to the floor. Pumping the brakes helped stop the vehicle. The vehicle was driven a short distant to the nearest dealer. Upon their inspection, they stated the brake lines had corroded and the fluid had leaked out. Fortunately the vehicle was travelling at a low rate of speed and traffic was not in the way at the time of failure.

While traveling home this morning from a ball game on nc back roads with our two children, my wife (ltcol usaf) said the brakes failed and the warning light came on and the buzzer sounded. Unable to stop, they rolled through a stop sign and pulled into a church parking lot. Upon inspection, brake fluid was dripping from a rusted brake line just inside the left rear wheel. I purchased the vehicle new and it has been in the charlotte, nc area most of its service life. Annual trips to northern michigan with proper post trip washings should not have created this amount of rust and corrosion on key components such as the brake lines. This known problem must relate to the inferior quality of metal of gm allowed the supplier to use. The numerous failures I've read about have not been limited to the northern climates and consequently will result in numerous deaths as these vehicles age further. Answering the problem last fall with pre made replacement brake lines for customers to buy and have installed falls short of meeting gm's obligation to deliver safe and reliable vehicles. The affected vehicles should be inspected and repaired proactively by gm ASAP. Several years ago Subaru promptly recalled their corroded brake lines; why has gm been given a pass?.

On 1/4/14 my wife was sitting in the drive thru lane and when she went to put the truck in drive the pedal went all the way to the floor. Had it towed and found a rusted and leaking brake line. Second incident on 2/1/14 while driving and approaching a red light I applied the brakes and the pedal went all the way to the floor. I pumped the brakes enough to where I got the vehicle stopped after going through the intersection without being hit. I got it off the road and had it towed once again. Another brake line had burst and fluid leaked out. The mechanic states that all of the brakes lines are rusted, some more than others so I am having all of the lines replaced. Some type of recall needs to be done as I am reading on line of other owners having problems with premature rusting. Two lines leaking within one month is unacceptable.

In December 2013 my wife and I were driving our 2003 GMC Yukon xl 2500 4x4 outside of cooperstown, new york. The brakes failed on route 26 coming down the hill towards route 28.  it was snowing and about 11:30 at night. We slid sideways down the hill and across route 28.  the only thing that stopped us from rolling over an embankment was the new metal guardrail that was recently installed along route 28. Fortunately, we were not injured, and there was no one else on the road. I experienced immediate and complete brake failure. My brake pedal went completely to the floor. It was not a slow process. Our Yukon is well maintained and has only 89,000 miles on it. 1 - my local dealer, where I bought the vehicle brand new, and who inspected my vehicle brake line failure and quoted the repairs, denied a backup system in the event of a brake line failure. 2 - a different repair shop said that all five of my brake lines had failed and were leaking fluid during a test to locate the problem. 3 - I have had the vehicle inspected by four different repair shops, within one weeks time, and they all confirm failure of the brake fluid lines due to rust. I did not yet have the brakes repaired yet because the quotes were so high. Many new yorkers may have already experienced this brake line failure , or are still at risk of a serious, or fatal “accident” . My concern is that there may have already been serious injuries and possibly deaths around the country and this brake line failure may have been the cause. I strongly suggest that accident files be reviewed by vehicle year and model, as listed in the NHTSA investigation report, to see if there is a correlation. We often see fatalities listed as “speed to fast for road conditions” when in fact there may have been brake line failure.

Coming to a stop to make a left hand turn, light coating of snow on the road made it slippery, abs braking cycled I held brake pedal down as the manuals say to do with abs system, truck slowed abs cycled again and then pedal went to the floor. My vehicle ended up sideways in road and thirty feet from my turn and nearly in a ditch, I then backed up to make my turn and brakes went to the floor again as I stopped to enter my road , fortunately my home was only about 500 yards from this spot. I had almost no brakes at all as I entered my driveway and parked. I then inspected fluid level in master cylinder which appeared full , from there I followed line down to the abs module to the braided brake line and still saw no leaks, then followed the braided brake line to the brake line tubing to the frame behind the wheel well where the line closest to the wheel well was leaking fluid and it had sprayed all over the line and under carriage and frame and wheel housing shroud. The line is rusted out and burst the truck has less than 80000 miles on it and is well maintained and I bought this truck new with 8 miles on it and paid $43000 for it. This is horrendous and incredibly dangerous there was no stopping power at all, had this happened on the highway or at a busy intersection there would have been a collision.

While driving down a hill in orillia ontario canada, I had a sudden loss of brakes. I was able to swerve through 3 lanes of traffic and after nearly hitting another car in a service station parking lot I brought the vehicle to a stop. My brother checked the vehicle and found that all brake fluid had leaked out of a ruptured corroded brake line next to the abs sensor under the driver side of the vehicle. Please add my name to the list of over 110 other complaints regarding brake lines which are corroded.

I was traveling down a city street and went to stop at a red light. I applied the brakes and the pedal was very soft so I pushed a little harder and the pedal went to the floor. I had to swerve into a gas station parking lot to avoid an accident and apply the emergency brake to stop the vehicle. I crawled under the vehicle and saw that there was brake fluid dripping from the floor and the hard lines under the driver side floor. It is getting taken to the dealer tonight to have the issue fixed. Please make gm responsible for this issue and to pay us back as this is a very dangerous problem and very expensive to fix. If I would have hit the brake a couple seconds later I would have missed the entrance to the gas station and rear-end the vehicle in front of me.

The contact owns a 2003 GMC Yukon xl 1500. The contact stated that while driving approximately 15 mph, the stability system warning light illuminated and the brakes became unresponsive. After parking the vehicle, the contact noticed that the brake fluid was leaking from under the vehicle. The contact referenced NHTSA campaign number: 04v045000 (service brakes, hydraulic) but was advised by the manufacturer that the VIN was not included in the recall. The vehicle was not repaired. The approximate failure mileage was 110,000.

The contact owns a 2003 GMC Yukon denali. The contact stated that while driving 20 mph, the brakes were applied and failed and the brake pedal was depressed into the floorboard. The contact had to utilize the emergency brake and the vehicle was towed to a local mechanic. The mechanic discovered that the brake line was rusted and leaking brake fluid. The mechanic repaired the entire brake line and master cylinder. The contact did not call the manufacturer. The failure mileage was 78,000. The VIN was not available.

The contact owns a 2003 GMC Yukon xl. The contact stated that while exiting a parking space with the brakes slightly depressed, the brake pedal traveled to the floorboard abnormally. The brake warning light was also illuminated. The vehicle was then driven to the dealer and as he parked, all of the braking fluid leaked. The dealer inspected the brake line and noticed corrosion. The dealer replaced the brake line at the owners expense. The manufacturer was notified of the failure and offered no assistance. The failure mileage was 55,000.

Rear brake line failure. Line was rusted through and leaking brake fluid. Now (Feb 2012) another line is leaking brake fluid, this time in the front portion of the vehicle.