Brakes lines rusted which LED to catastrophic failure of brake system. Repair cost $1,000. There are multiple thousands of complaints regarding this type of brake failure in this make, model, & year. This should be a mandatory factory recall. Someone is going to die because gm is not being forced to fix their faulty equipment. My vehicle was in motion and when I depressed the brake pedal the pedal went completely to the floorboard. I was driving straight ahead in moderate city traffic & narrowly missed striking the vehicle in front of me on a city street. My master cylinder was completely empty of brake fluid when examined. I was traveling 25 MPH and my vehicle has 110,000 miles. (the next page wouldn't allow me to enter the speed & mileage information where it was requested)
2003 GMC Yukon Denali brakes problems
18 complaints (25% of all complaints for this car). Typical mileage when it fails: 78,000. 4 crashes reported.
- owner complaints
- 18
- of this car's complaints
- 25%
- typical mileage
- 78,000
- crashes
- 4
- recalls
- 0
Which part fails
- Foundation components: hoses, lines/piping, and fittings2
- Antilock/traction control/electronic limited slip2
- Antilock1
At what mileage
Complaints by mileage at the time of the problem.
GMC Yukon Denali brakes problems in other years
Specific symptoms reported on the 2003 GMC Yukon Denali brakes
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Parking brake failure
Odi's review of complaint data received since the close of ea04-011 revealed no indication that the investigation should be re-opened.more details can be found in the federal register notice enclosed in the dp05-009 public file.odi reserves the right to reopen the investigation in the future should conditions warrant.
DP05009
What 2003 GMC Yukon Denali owners say
Most recent owner complaints, unedited.
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.
My daughter was driving and when slowing down the brakes failed to work. The vehicle was not able to stop and collided with the vehicle in front. Luckily nobody was injured in this collision. After inspection, I noticed fluid on the ground at the rear left (driver's side rear), and looked under the vehicle to see where the fluid may be coming from. I saw that there was fluid coating a large area of the underbody, and also see the brake line attached to the frame as wet and rusted. I have pictures saved as a reference.
Driving along when all of a sudden I needed to brake for curve and the brake pedal went down to the floor. I ran off into a grassy field to prevent a serious injury.
I was driving home at night after getting gas in the middle of the gas shortage during the major snow storm in the north eastern united states. As I was approaching a light I pressed on the brakes and it went straight to the floor. I then brought it to a mechanic and when it was placed on a lift they noticed the entire bottom of the car was rusted including the brake lines. They ended up replacing the entire brake line system due to excessive rust.
After stepping on my brakes aggressively to stop for a dog crossing the road. I received a brake stability notice on my dash. Since I was in the middle of the road, I put the car into drive to get over to the side of the road. The car did not slow down after I pumped the brakes, and tried to throw the car in reverse to reduce the speed. I coasted into a parked subaru on the side of the road and because of the rear impact the subaru that I hit pushed into toyota highlander in front of it. Therefore three cars affected by the accident. My children were in the car with me and that was the worst part, I would have coasted right into a busy intersection on main street had I not stopped the way that I did. After taking the truck to my mechanic he mentioned that I popped two brake lines.
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.
Rusted brake lines caused immediate loss with no warning. Loss of brakes were catastrophic with only emergency brakes available. Car came to a controlled stop on median but could of been much worse given no other vehicles in the vicinity.
Brake line burst while under a hard braking scenario. Further inspection revealed all lines under and up to the proportioning valve are all rotting to the point of needing to be replaced.
Tl* the contact owns a 2003 gmc yukon denali. The contact stated that while driving 20 MPH, she attempted to brake but the vehicle did not brake. The contact had to remove her foot from the brake pedal to stop the vehicle. The failure occurred without warning. The vehicle was then towed to the dealer. The dealer stated that they needed to replace the brake lines. The vehicle was not repaired. The manufacturer was not contacted. The failure and current mileages were 120,000.
Questions about the 2003 GMC Yukon Denali brakes
Does the 2003 GMC Yukon Denali have brakes problems?
Owners have filed 18 complaints about the brakes of the 2003 GMC Yukon Denali, 25% of all its complaints.
At what mileage do 2003 GMC Yukon Denali brakes problems start?
The typical (median) mileage in owner complaints is 78,000 miles.
Was there a recall on the 2003 GMC Yukon Denali brakes?
There is no recall for this problem on this model year.
What year does the GMC Yukon Denali have bad brakes?
The GMC Yukon Denali model years with the most brakes complaints are 2002 (19 complaints), 2003 (18 complaints) and 2001 (16 complaints).
Other 2003 GMC Yukon Denali problems
Electrical 25Engine 12Driver assistance 8Acceleration 5Lights 4Airbags 3Transmission 3Visibility 3Body 2Seat belts 2Steering 2Suspension 2Tires 2Seats 1Wheels 1
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