2005 Hummer H2 Brakes Problems
- Complaints
- 11about this part
- Share
- 14%of 79 total for the year
- Median mileage
- 80,484miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the brakes of the 2005 Hummer H2, 14% of the 79 complaints for this model year. Where a mileage was given, the median is 80,484 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Steel brake line burst due to corrosion and rust. Brake pedal went all the way to floor. Made call to GM and had vehicle towed to my local authorized GM service center. I was told that this was not covered because the vehicle was almost 10 years old and that this was the life expectancy of the vehicle.”
NHTSA complaint #10618272, filed 2014-08, 82,000 miles“On february 3, 2015, I noticed my brakes pedal were going closer to the floor. I got home and noticed that my brake lines at the rear was leaking brake fluid onto my driveway. I attempted to pull the vehicle up further in the driveway and the brake pedal went all the way to the floor. I had to push in the emergency brake. On february the 7th I contacted my gmc dealer in wendell, nc. I advised them that I was getting aaa to tow my vehicle in due to brake line problems. …”
NHTSA complaint #10703960, filed 2015-04, 79,467 miles“Brake lines rusted through and failed catastrophically and without warning causing a complete loss of braking while stopping for a red light. Since the entire system was rusted, there was no reserve braking from the dual system. I was traveling at a moderate speed and was able to recover without an accident. I replaced all the brake lines at a cost of $1100, not knowing that this was a common defect in GM vehicles. I saw today in the new york times that many other GM vehicle owners are experiencing the same problem. …”
NHTSA complaint #10608878, filed 2014-07, 17,000 miles“The contact owns a 2005 Hummer H2. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, and the brakes made a whistling sound. The contact, an independent mechanic, diagnosed that the brake booster needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that there was no recall associated with the VIN. The failure mileage was approximately 70,000.”
NHTSA complaint #11521346, filed 2023-05, 70,000 miles“The contact owns a 2005 Hummer H2. The contact stated that while driving at various speeds, the steering wheel became difficult to turn. The contact also stated that there was fluid on the ground. The vehicle was taken to an independent mechanic where it was diagnosed that the power steering pump needed to be repaired. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that the VIN was not included in NHTSA campaign number: 05v043000 (service brakes, hydraulic). The approximate failure mileage was 73,600.”
NHTSA complaint #10782561, filed 2015-10, 73,600 milesRelated recalls
- 05V043000Feb 8, 2005Certain trucks, sport utility vehicles, and vans equipped with bosch hydro-boost brake assemblies, the hydraulic brake booster pressure accumulator may crack…Covers: Hummer H2 2004–2005, Chevrolet Silverado 2004–2005, GMC Savana 2004–2005 +7 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…
Brakes: other model years
Other parts of the 2005 Hummer H2
27 complaintsVisibility (wipers, defrost, mirrors)
19 complaintsAir bags
12 complaintsSteering
6 complaintsEngine
4 complaintsTransmission and drivetrain
4 complaintsOther or unknown
3 complaintsTires
3 complaintsSeats
2 complaintsBody and structure
2 complaintsWheels
2 complaintsSuspension
1 complaints
← All problems reported for the 2005 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