While driving down road at approximately 45 MPH, hit the brakes when a couple of deer jumped onto road and the pedal went to floor with no braking action at all. Had enough time to realize what had happened and hit the parking brake in time before reaching intersection to busy highway. Inspection afterward showed brake fluid on the frame near the driver side door where the proportioning valve is located. There was no warning of the failure and had been driving the vehicle around town most of the day. Have experienced brake failures on vehicles before and always had half the system remain operational enough to stop without problem. This appears to have been a single failure mode that caused the loss of braking or a simultaneous failure of multiple systems which should be unlikely but seems to happen with improbable regularity based on complaints posted.
2004 GMC Yukon brakes complaints
Page 2 of 2: complaints 11 to 38 of 38, newest first, as owners wrote them.
Brake lines rusted in to causing the lines to weaken. Driving to my house , push on brake pedal it went to the floor look under vehicle and there was a pool of brake fluid under the vehicle. This could have been a serious accident in traffic.
While driving down an on ramp I began to apply the brakes to slow down, the brake pedal sunk to the floor and I had no braking capability and the brake warning appeared on the dash. I pumped the brake again and still had no braking capability, I was able to coast to a stop along the side of the road. Upon inspection of the brake lines, there was a major leak on the rear driver side, and a smaller leak from on the front passenger side.
Lost all brakes when coming to a stop sign, rolled out into intersection, on inspection brake fluid was leaking out from under drivers side floor area. All brake fluid leaked out from reservoir.
Backing up to hook up a trailer, I depressed the brake and it went straight to the floor. Rear brake line ruptured after ABS module and right about the fuel tank. I cannot replace just they one line because of corrosion and rust at the module. This is the family SUV and im lucky this happened in my yard and not on the highway. I was preparing to leave towing a 5500lb trailer. All these other lines are equally bad and I fear they are going to rupture too. I'm stuck with a 10 year old less than safe vehicle.
I was heading to ocean city maryland. As I was approaching the toll plaza to go over the bay bridge I slowed down and seem to had stopped when all the sudden my foot was on the brake clear to the floor and I hit the box truck in front of me that was stopped for traffic. I looked at the dash and it was all lit up and blinking. The gentleman told me I had lost my breaks and that when he would move I would begin to move as well. I was not far from the beginning of the bridge but I was six or seven lanes to the left in the easypass lane. I called my brother asking him what to do and he talked me through as I was panicking. I had a full tank of gas and lots of tractor trailers going through the plaza. I was for sure I was going to be hit or hit someone else. I rolled down my windows put my flashers on and began to blow my horn and yelling out the window I have no brakes so that I could get over to the right side of the road right before the bridge. As I did people did stop and let me get over and I had my foot on the brake but they were not stopping the truck. As I was drifting over a toll facility tow truck was on the side and he yelled to me what was wrong. I told him no brakes and he told me to jump out and he jumped in and hit the truck up over a small embankment to get it out of the way of all the traffic. He got it to stop and got out and looked up under the truck and could see that two of the brake lines were snapped. I had the truck towed with over the bay bridge and they had to replace the two brake lines that snapped and they could not bleed the lines fully since they were afraid that the other two lines could snap at any time. I got home and had to have the other two lines done as well. I have to say I was never so scared in my life I could have died for sure if I was going any faster up an over the bridge and down the hill getting off. Worst day of my life.
Upon applying brakes, while driving downhill, the right rear steel brake line burst resulting in significant loss of braking power. Fortunately,y I had significant distance between me and the next car that I could avoid an accident. The vehicle still had some braking power to allow me to drive it to a nearby parking lot where it continued to lose brake fluid. The vehicle was towed to a local gmc dealership where they replaced all the steel lines with copper/nickel lines at a cost of $1,606.00. I was told that the steel lines are rusting out as a result of the de-icing chemicals being used on the roads during the winter. I have had vehicles up to 15 years old in the past and never had such an experience as this. I question the quality of the steel lines. If gm is of the opinion that their steel lines can't withstand the de-icing chemicals then they should have installed copper/nickel lines at the factory. Thank you.
Tl* the contact own a 2004 gmc yucon- the contact stated while driving approximately 35 MPH, when he tried to come to a stop the brake pedal extended to the floor. The vehicle could only be stopped by using the emergency brake. The vehicle was driven to a nearby dealer who indicated that the brake line needed to be replaced because of corrosion. The vehicle was not repaired. The manufacturer was notified. The approximate failure mileage was 78,271.
I applied the brakes firmly to avoid hitting a deer. On my next brake application my pedal went to the floor and the service brake system message came on. When I got home I found a ruptured brake line underrate drivers door. All lines are rusted severely as well as most of the undercarriage. I looked online and there are hundreds of complaints on this issue with gm vehicles similar to mine.
No problem yet, but is sure to happen. Brake lines rusted. Had same problem on my 2005 gmc yukon denali xl where the metal lines rusted and blew out. Almost caused accident.
Car has low miles for age and today the brake line began to leak under driver side seat because of rust.
I was traveling on the new york state thruway at approximately 4:00pm, in heavy traffic. Traffic began to slow and become backed up, due to congestion in a work zone. I applied my brakes, put the brake pedal went all the way to the floor, and I was unable to stop. I avoided colliding with the vehicle in front of me, by maneuvering onto the shoulder, and had to use the emergency brakes to stop.
As I was backing my truck out of my driveway, I release there was no brake pressure. Then the service brake light came on, I stop the car popped the hood and notice the fluid was low. Check under the car and found the line that goes front to rear is busted in the middle from rust. I had to use my parking brake to slow it down when I moved it back to its space.
Brakes were reduced to about 10% of normal and the 'service brakes' light came on. I had to push the pedal all the way down to the floor to stop. The mechanic said all of the brake lines must be replaced as they are rusted, and that this is a typical problem with gmc trucks of this type.
I was hooking up a dump trailer to my 2004 yukon xl and when I went to do a turn signal and brake light check on the trailer, my brake pedal went to the floor. No warnings of any kind. I am extremely lucky that I was not moving and had just completed driving in high speed traffic for several hundred miles. The failure was total and immediate. I drove the vehicle to a nearby shop with the parking brake. The shop diagnosed the brake failure as corrosion in brake lines and fittings. I just moved to florida this year, previously the vehicle had been driven in heavily salted and brined roads in the northeast.
Drove vehicle to my destination for shopping, no signs or warning what to follow. Came out of facility, started vehicle,backed up vehicle,stepped on brake, pedal to floor, said this can't be , pulled a little forward same thing no brakes, got out of vehicle found river of brake fluid. Had vehicle towed to my mechanic where he alerted me that all brake lines were rotted out. All lines now need to be replaced at a cost of $1500.00 with non-corrosive lines. This is a disgrace and I have called gm to complain who says there is no recall. People are going to die if this is not fixed.
Backing up applied brakes, pedal went to floor, stopped looked under vehicle seen brake fluid leaking from brake lines. Towed vehicle home, looking under vehicle fuel lines and brake lines are very rusted for vehicle with only 80,000 miles.
The subject vehicle had recently been parked after towing a 29 foot long travel trailer. It had sat for approximately two weeks since we last used it. During the 2011 30 october snow storm in pa, I went to pick it up to use it. I started down the driveway and went to apply the brakes and the brake pedal traveled to the floor. All of the antilock and brake warning lights appeared on the dash. I was able to stop the vehicle and back it back the driveway and park it. We later called aaa and had it towed to a local chevy dealer. They diagnosed the problem and let us know that they had found a brake line that burst due to corrosion. This brake line is almost directly under the power brake booster assembly and is somewhat hidden from view. It lies atop the frame in this area and according to the dealer had corroded. According to the dealer they had to fabricate a replacement brake line and were able to replace it. They further indicated they looked at the other brake lines and did not see any further indication of corrosion. I have driven the gmc for about ten miles since the repair and the brakes appear to be back to normal. Let me add this, I have owned 15 different vehicles in my life and not one has had to have a steel brake line replaced. This is the first. Just like the other gm owners, when these lines fail the braking ability to stop this two ton vehicle is almost non-existent I am very thankful this line did not fail while towing the 29 foot travel trailer.
Tl*the contact owns a 2004 gmc yukon. The contact noticed a leak under the hood of his vehicle. The manufacturer advised him to take the vehicle to a dealer and they stated that the hydro boost failed. The contact would have to pay $861 to repair the vehicle. The mechanic informed him that he could have run out of power steering and brake fluid, and the seal failed and was leaking. The failure could have caused a crash due to the loss of the fluids in the vehicle and the inability to brake. The brakes and the steering are one unit. A gmc representative stated that he would call the contact in 24 hours to discuss whether or not they will pay for the parts or a portion of the repairs. The current mileage was 48,498 and failure mileage was 48,448.
Tl*the contact owns a 2004 gmc yukon. The vehicle did not pass inspection because the parking brake failed. The vehicle would continue to roll when the parking brake was applied. The vehicle was inspected by the dealer, but no repairs were made. The dealer did not mention what repairs were needed. The current and failure mileages were 87,000.
Brake pedal effort is excessive, resulting in several near misses due to inability to stop rapidly. Have notified dealer(s) several times, and they have stated that brakes were okay. I personally feel that brake pads and/or rotors were too small for weight of the truck.
Tl*the contact owns a 2004 gmc yukon. While driving at 25 MPH the contact engaged the brakes and the vehicle would not stop and caused it to crash into the rear of another vehicle. The failure mileage was 70,000. Between the two vehicles, four people sustained minor injuries. This was the second time the brakes failed. The vehicle was not drivable and will not be repaired. The current and failure mileage were 70,000.
Dt*: the contact stated while getting an oil change, it was noticed the brake fluid was low. The dealer determined the rear rotors and pads needed to be replaced. Updated 12/1/2006 - the rear brake were worn, pitted, and rusted.
"stability system disabled" was displayed prior to the brakes being engaged without driver input. The vehicle was taken to the dealer and a 'yaw sensor' replaced. The problem returned within 20 miles. A second sensor was replaced along with reprogramming. The problem continues. Dealer states "gm has told us to do nothing more". No further explanation is offered by the dealer or gm "customer assistance". I believe that a vehicle that activates brakes on dry pavement without the driver's foot on the pedal is dangerous.
While driving vehicle suddenly lost acceleration. Check engine light appeared on the dashboard and remained on. Consumer was able to pull over by coasting the vehicle to the shoulder. Then vehicle stalled. Consumer tried to restart vehicle but was unable to do so. Then, noticed that the rear passenger wheel smoke was coming from it. Consumer had the vehicle towed to the dealer for inspection, and mechanic determined that the emergency parking brake needed to be replaced.
While driving at any speed, the brake pedal has to be pushed very hard to get deceleration to occur. When I had to stop quickly after going 65 MPH I almost hit the ark highway and transportation department due to the lack of control of stopping.
The consumer would have to depress the brake pedal hard to the floor for vehicle deceleration. This would cause extended stopping distance. The dealership was notified, but did not resolve the problem. The cause was not determined. Please provide any additional information.
While driving consumer applied the brakes and without warning consumer's vehicle collided with the vehicle in front. Upon impact, air bags did not deploy. Driver sustained minor injuries and was transported to the hospital for examination. Vehicle was towed to the dealer for inspection, and dealer was unable to duplicate or resolve the problem.
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