The contact owns a 2005 Hummer H2. The contact stated that while the vehicle was parked, fluid started to leak from the steering wheel. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.
The worst 2005 Hummer H2 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical27
- Visibility19
- Airbags12
- Brakes11
- Steering6
- Engine4
- Transmission4
- Tires3
- Body2
- Seats2
- Wheels2
- Acceleration1
- Suspension1
Specific symptoms reported on the 2005 Hummer H2
Recalls 2
Seat belts: rear/other
- What is wrong
- On certain crew cab pickup trucks and sport utility vehicles, the 2nd row center occupant seat belt routing may make it difficult to position the lap portion of the safety belt low around the hips of occupants, especially smaller occupants, seated in this position. Appropriate use of a child seat or booster seat, as recommended for small children, does improve the fit condition for this user group. In addition to instructions on proper infant and young child restraint (with child seats or boosters), special verbiage for restraining older child is included in the owner's manual. Also, the suggested seat belt fit/routing for adults, irrespective of seating position, is described in the owner's manual text.
- Risk
- A lap portion of the seat belt routing that is not low and snug on the hips can allow the lap belt to ride up on an occupant's abdomen instead of fitting low around their hipbones, and therefore, can expose them to more risk of abdominal and internal organ injury.
- Remedy
- Dealers will cut open the guide loop, remove a portion of the loop, and then the remaining two sides should be folded over and secured with a retainer free of charge. The recall began on july 21, 2005. Owners may contact cadillac at 1‑866‑982‑2339, chevrolet at 1‑800‑630‑2438, gmc at 1‑866‑996‑9463, or hummer at 1‑800‑732‑5493.
Recall number 05V163000 · Recall details
Service brakes, hydraulic
- What is wrong
- Certain trucks, sport utility vehicles, and vans equipped with bosch hydro-boost brake assemblies, the hydraulic brake booster pressure accumulator may crack and separate from the hydro-boost assembly during normal operating conditions.
- Risk
- If a separation occurred and the hood of the vehicle were open, fragments from the accumulator could cause injury to people in the immediate area. The presence of this crack or fractured surface could allow the hydraulic fluid to leak from the accumulator circuit of the booster assembly. The loss of fluid would cause increased steering and braking effort and a crash may occur without prior warning.
- Remedy
- Dealers will test the hydro-boost assembly for functional operation of the two-function valve. If the hydro-boost assembly fails the test, dealers will replace the assembly free of charge. The recall began on march 23, 2005. Owners may contact chevrolet at 1‑800‑630‑2438, gmc trucks at 1‑866‑996‑9463 and hummer at 1‑800‑732‑5493.
Recall number 05V043000 · Recall details
See all 2 recalls for the 2005 Hummer H2
Defect investigations
Hummer h2 steering knuckle failures
Odi upgraded this investigation at the conclusion of pe04-080.the alleged defect involves the failure of the steering knuckle at the lower ball joint boss, resulting in a separation of the lower ball joint from the knuckle.a lower ball joint separation could result in a loss of steering and/or a disabled vehicle. It appears that the fractures of h2 steering knuckles can be attributed to wheel/tire collision forces being transferred directly to the steering knuckle.the original knuckle design appears to be sufficient for the h2 application.evidence from inspected vehicles, photographs, police reports and edr data indicates collision impact events placed stress on the steering knuckle causing it to fracture.further use of agency resources does not appear to be warranted.the closing of this investigation does not constitute a finding by the federal safety agency that no safety-related defect exists with regard to the subject component.the agency reserves the right to take further action on this issue if warranted.
EA05017
Technical service bulletins for the 2005 Hummer H2 734
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- Unknown or other
- Unknown or other
- This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- Unknown or other
- Electrical system
- Unknown or other
- This service bulletin provides information for dealers/technicians on When and How to Submit a Field...
- Unknown or other
- Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles
What 2005 Hummer H2 owners say
Most recent owner complaints, unedited.
The contact owns a 2005 Hummer H2 equipped with Cooper Tires, Tire Line: Discoverer, Tire size: 35X13.50R20LT, DOT Number: 1V1261B4V1724. The contact stated that while the vehicle was being serviced and on a lift, the mechanic became aware that all four tires were split in the middle of each tire. The vehicle was taken to a tire retailer where the tires were originally purchased and replaced, but the failure reoccurred. The contact stated that on another occasion, while the tires were being rotated, the mechanic became aware that the rear driver’s side tire had a tear in the sidewall. The tire was replaced. The manufacturer was notified of the failure. The failure mileage was unknown.
The contact owns a 2005 Hummer H2. The contact stated that while parking in the mountains, the vehicle was in the park position, and it unexpectedly rolled and stopped at a boulder. There were no warning lights illuminated. The door hit the driver and knocked him to the ground, and he sustained an injury to his head, but medical attention was not provided. Another person on an ATV provided a jump start, but the vehicle failed to restart. The contact walked several miles to get assistance. The contact was able to view YouTube and replace the part. The contact stated that the transmission shifter cable had failed. There was a hole in the shaft connected to the transmission to the C clip. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 111,400.
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.
While traveling on the main roads the speedometer intermittently malfunctions then drops to zero, whereas I'm literally unable to determine my speed this seems to occur when the engine warms up and I been driving for better than a half hour.
Tl* the contact owns a 2005 hummer h2. The contact stated that while driving the vehicle, the power steering failed, causing the steering wheel to become very difficult to turn in either direction. Additionally, the power steering fluid leaked unto the hydro-boost braking system, causing the brakes to malfunction and become spongy, extending the braking distance. The contact works as an independent mechanic and confirmed the causes of the failures. The local dealer apple valley chevrolet located at 650 foxcroft ave, martinsburg, wv 25401 and the manufacturer were notified of the failure. The contact was informed that the vehicle was not included in the federal safety agency campaign number: 05v043000 (service brakes, hydraulic). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 240,000.
Toyo tires | part number: toy360390 coming apart at the seams
The computer in the h2 hummer malfunction. Wipers will not turn off. 4 wheel drive will not engage. Engine light comes on. Everything the computer controls is failing.
Check engine light keeps coming on and light blinks than stays on until I take it in for service. The shop can't figure out why it is doing this had it shop about 7-8 times for service. Also code states can cause a possible fire
Tl* the contact owns a 2005 hummer h2. The contact stated that the air bag service warning indicator remained illuminated while driving, which was a safety concern. The vehicle was taken to a dealer (haley buick gmc, 9831 midlothian turnpike, richmond, va 23236, (804) 320-9054) where it was diagnosed that the sensing diagnostic module for the front driver's seat needed replacement. The vehicle was not repaired due to the part being discontinued. The manufacturer was made aware of the failure and did not assist. The failure mileage was 83,550.
Compare the 2005 Hummer H2
Other model years
Questions about the 2005 Hummer H2
Is the 2005 Hummer H2 reliable?
Owners have filed 79 complaints about the 2005 Hummer H2, 3.6 times a typical H2 model year. It is one of the years we flag to avoid.
What is the 2005 Hummer H2 year score?
The 2005 Hummer H2 scores 29 out of 100 (poor). The score compares it with the other model years of the Hummer H2: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2005 Hummer H2?
Electrical system, with 27 complaints, typically around 52,118 miles. Next is visibility (19).
How many recalls does the 2005 Hummer H2 have?
2 recalls, covering seat belts and service brakes, hydraulic.
What year does the Hummer H2 have the most electrical problems?
The Hummer H2 model years with the most electrical complaints are 2005 (27 complaints), 2003 (24 complaints) and 2004 (14 complaints).
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