2003 Hummer H2 Brakes Problems
- Complaints
- 18about this part
- Share
- 13%of 141 total for the year
- Median mileage
- 90,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 18 complaints about the brakes of the 2003 Hummer H2, 13% of the 141 complaints for this model year. Where a mileage was given, the median is 90,000 miles. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We purchased this H2 in december 2014 and by feb 2015 noticed a grumbly sound in the brakes. We took it in for service and the tech told us the whole undercarriage was rusted and all the brake lines were rusted thru and had to be replaced. Since some of the lines were no longer available, they had to create them. This was a costly fix and who knows what the safety impact could have been.”
NHTSA complaint #10717606, filed 2015-05, 98,651 miles“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.”
NHTSA complaint #10479450, filed 2012-10, 104,000 miles“My 2003 Hummer H2's service brakes light keeps coming on along with the traction control & ABS light, and every time I brake it seems to pull me all over the road. It is also very hard to stop if I suddenly have to brake and I am scared I am going to have a major collision with another vehicle or another object. This is very dangerous! There are many times I have applied pressure to my brakes and it didn't even slow at all. …”
NHTSA complaint #10248459, filed 2008-11, 100,000 miles“Brake lines completely rusted causing a catastrophic failure in braking. 2003 H2 Hummer . For the life of me , I cant believe there is no recall for this !!!”
NHTSA complaint #10554148, filed 2013-11, 100,600 miles“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 . …”
NHTSA complaint #10632605, filed 2014-09, 90,000 milesRelated recalls
- 04V045000Feb 4, 2004Certain sport utility vehicles, pickup trucks, and passenger vans fail to comply with the requirements of federal motor vehicle safety standard no. 135…Covers: Hummer H2 2003–2004, Chevrolet Silverado 2003–2004, GMC Yukon 2003–2004 +10 more
Related service bulletins
- 10242252Aug 18, 2023This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- 10226382Oct 18, 2022This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10208027Jan 14, 2022This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10178353Jun 26, 2020This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10168960Nov 12, 2019This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire…
- 10162149Jun 24, 2019This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10161004May 13, 2019This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10129088Jan 23, 2018This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10113364Jan 31, 2017This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10078876May 11, 2016This preliminary information communication advises the technician that the hydro-boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
Brakes: other model years
Other parts of the 2003 Hummer H2
52 complaintsElectrical system
24 complaintsSteering
17 complaintsBody and structure
13 complaintsSuspension
11 complaintsTransmission and drivetrain
11 complaintsEngine cooling
5 complaintsSeats
5 complaintsWheels
5 complaintsEngine
4 complaintsVehicle speed control
3 complaintsFuel system
2 complaints
← All problems reported for the 2003 Hummer H2
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology