Window & Wiper complaints by model year
Which parts fail
Components named in complaints (power windows, windshield, wipers, mirrors, sunroof).
Mileage when the problem started
What owners report
Tl* the contact owns a 2009 Hummer H3. The contact stated that the defroster did not blow cold air. The failure occurred without warning. City Cadillac (90-10, 43rd st, long island city, ny) was contacted and confirmed that the failure was related to NHTSA campaign number: 15V421000 (visibility), but refused to repair the vehicle for free because it was previously remedied. The manufacturer was made aware of the failure. The failure mileage was approximately 33,500. Updated 10/9/18
The vehicle has been brought to the dealer @ city Cadillac more than a 12 times & they still have not fixed the 1st (#15042) or 2nd recall (#14582). The truck has visibility, electrical, steering, leaking & motor mount issues just to say the least plus I am a disabled us marine veteran who was shot in desert storm and I really need my vehicle to get around especially since I have handicap license plates for my special needs. Can you please help???????
The contact owns a 2008 Hummer H3. The contact received notification of NHTSA Campaign Number: 15V421000 (Visibility); however, the dealer refused to perform the recall repair due to the age of the vehicle. The contact stated that the dealer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that the blower motor had become inoperable. The failure mileage was approximately 178,000. Parts distribution disconnect.
Tl* the contact owns a 2008 Hummer H3. The contact stated that rain entered the vehicle from the sun roof. Upon entering the vehicle, water was discovered on the driver's side floor board as well as on the rear driver' side. The contact stated that water entered the vehicle while driving. The vehicle was taken to an independent mechanic where the failure was diagnosed as a clogged drain tubing. The contact stated that the independent mechanic cleared the clogged drain tubing however, the failure recurred on several occasions. The manufacturer was notified of the failure and referred the contact to NHTSA for assistance. The approximate failure mileage was 125,000.
The contact owns a 2007 Hummer H3. The contact stated while driving at 50 mph, the vehicle started to overheat and stalled. The contact stated the temperature and the check engine warning light were illuminated. The vehicle was then towed to a local dealer where it has yet to be diagnosed due to the battery needing to be replaced. The vehicle was not repaired. The contact had the vehicle serviced under NHTSA campaign number: 15V421000 (Visibility) prior to experiencing the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 160,000.
Tl* the contact owns a 2007 Hummer H3. While driving approximately 60 MPH, the contact smelled burning plastic. The vehicle became filled with the odor. The dealer diagnosed that the connector model, blower switch, and HVAC unit melted and needed to be replaced. The manufacturer was notified. The approximate failure mileage was 111,000.
The contact owns a 2006 Hummer H3. The contact stated while driving 75 MPH, the hood louver detached from the vehicle and cracked the front windshield. The contact stated that the crack obstructed his vision while driving. The contact called the dealer and was informed that the vehicle was previously repaired under NHTSA Campaign Number: 10V179000 (Structure). The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 193,000.
Tl* the contact owns a 2006 Hummer H3. The contact stated that while driving at approximately 35 MPH, there was visible smoke inside the vehicle that came from behind the dashboard. The contact drove the vehicle to the residence where it was discovered that the fan relay was burned. The contact disconnected the relay. The vehicle was not taken to the dealer. The contact received notification of NHTSA campaign number: 15V421000 (visibility), however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The approximate failure mileage was 115,000. The VIN was unavailable. VIN tool confirms parts not available.
Frequently asked questions
Which Hummer H3 years have window & wiper problems?
By NHTSA complaints, the 2006 (45), 2007 (35), 2008 (19) and 2009 (9) model years. Window & Wiper complaints make up 12% of all complaints for the 2006.
Is there a recall for Hummer H3 window & wiper problems?
No. NHTSA lists no windows, wipers & sunroof recall for any Hummer H3 model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Hummer H3 window & wiper problems start?
Across all years, half of the complaints with a recorded mileage happened before about 92,000 miles; 15% happened before 50,000 miles.
What part fails most often?
Owners most often name the sun/moon roof assembly (14 mentions), followed by the windshield (4).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.