I was driving down the highway interstate 70 in maryland and went to apply my brakes . As I applied the brakes , the truck pulled hard to the right ,and the brake pedal went to the floor . If I would not have swerved onto the median , I would have ran into the back of another vehicle . After stopping , I looked under the vehicle and observed a puddle of brake fluid on the ground ,and the front suspension was covered in brake fluid. After further inspection, I noticed that all the brake lines were corroded. Gm states that your vehicle can still stop if you lose one of the brake lines . In my situation , I found this to be a false statement . This is a very dangerous situation ,and I was very surprised when I took the vehicle into a certified gm dealership and found that they would not do anything about this issue. They offered a voucher for 1000 towards a new vehicle . I own a 1968 camaro that is all original ,and I do not have any rust issues with the brake lines . How is this possible that a car 35 years old does not have this problem ? And even more crazy , that gm turns a blind eye to this dangerous issue . Needless to say, I will not ever buy another gm product !
2003 Hummer H2: brake failure
5 of the 141 complaints about the 2003 Hummer H2 describe brake failure.
- owner complaints
- 5
- of this car's complaints
- 4%
- typical mileage
- 83,000
- recalls
- 1
Brake failure by model year
- 20053
- 20044
- 20035
What owners say
Brake pedal went to the floor upon brake application without prior warning. Upon inspection, found brake lines corroded through and leaking just under the driver's seat. Cost to repair will be significant.
Tl* the contact owns a 2003 hummer h2. The contact was driving 45 MPH and attempted to stop at a red light when the brakes failed. The vehicle coasted until it stopped in a parking lot. The emergency brake was used to drive the vehicle to the contact's residence. The vehicle was later taken to an independent mechanic, who diagnosed the vehicle as having corrosion on the brake line. The contact was informed that in order to repair the vehicle, the frame would have to be removed. The vehicle was not repaired and the manufacturer was not notified of the incident. The approximate failure mileage was 80,000.
I was exiting the highway and pushed the brake pedal to slow the vehicle, everything was fine. When I went to stop the pedal went to the floor. I was able to pump the brakes and the vehicle stopped. When I was checking to see what the problem was I noticed all the metal brake lines are corroded and one was leaking.
My right front wheel, inner backing and axle came off. The lower flange broke away from the lower a-arm. This happened while I was driving on a paved road near my house. The a-arm hit the ground and spun the h2 off the road and into a tree. The right wheel's brake backing plate and axle came off all in one piece. Except for this one flange, the remainder of each front wheel is held in place by only ball joints. The upper flange is attached to a ball joint. The lower flange is a major structural component of the front end. There was no impact to any of the parts of the right wheel assembly or axle even after I was thrown off the road. Obviously the brake line and ABS circuit was severed immediately. I had no brakes and little other control. After the h2 hit the tree, it came to a stop. The bottom of the tree stayed stationary, but the top of the tree broke off and came down (hard) on the right windshield post, bending the post and shattering the windshield. With no front wheel, the h2 does not have any mobility except for skidding and sliding. This is the third case of this same type of defect reported to the website "[email protected]" it was suggested that I report it to you. There was an article in the sacramento bee about this type of defect. Please see "http://www.sacbee.com/content/business/auto/story/5721689p-6694625c.html"
Service bulletins that may apply
- This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self...
- Service brakes
- This preliminary information communication advises the technician that the hydro-boost is not serviceable...
- Service brakes, hydraulic
- Service brakes
- General motors: on all 1988-2009 full size chevrolet/gmc pickups, utilities and vans, the brake pedal will...
- Antilock brake (ABS) activation at low speeds (clean wheel speed sensor mounting surface)
- Anti-lock braking system (ABS) light on speedometer may be erratic
Related recalls
Service brakes, hydraulic
- What is wrong
- Certain sport utility vehicles, pickup trucks, and passenger vans fail to comply with the requirements of federal motor vehicle safety standard no. 135, ?passenger car brake systems.? Some of these vehicles were produced with an out-of-specification brake hydro-boost housing relief valve bore.
- Risk
- Consequently, the valve o-ring seal may fracture. Steering efforts may be slightly increased while braking or parking. Under certain driving conditions, a fractured seal may require a slight increase in the applied brake pedal effort to achieve the same vehicle deceleration rate as prior to the seat fracture.
- Remedy
- Dealers are to replace the hydro-boost relief valve. The recall began on june 18, 2004. Owners should contact cadillac at 1‑866‑982‑2339; chevrolet at 1‑800‑630‑2438; gmc at 1‑866‑996‑9463; or hummer at 1‑866‑486‑6376.
Recall number 04V045000 · Recall details
Questions about the 2003 Hummer H2 brake failure
Is brake failure a common problem on the 2003 Hummer H2?
5 of 141 owner complaints about the 2003 Hummer H2 (4%) mention brake failure. The model year with the most reports is 2003.
Is there a recall or service bulletin for this on the 2003 Hummer H2?
There is 1 recall and 22 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2003 Hummer H2
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