2008 Hummer H3 Other or unknown Problems
- Complaints
- 9about this part
- Share
- 8%of 113 total for the year
- Median mileage
- 91,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the other or unknown of the 2008 Hummer H3, 8% of the 113 complaints for this model year. Where a mileage was given, the median is 91,500 miles.
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.
“The anti-theft system activates on its own. Several times in the past two months when I go to start my vehicle it will not start because it thinks its being stolen. I have purchased a new key and also switched key fobs. I can park the car in the garage in the morning and at 5pm when leaving work go to start it and nothing. All the dash lights come on but, it will not start.”
NHTSA complaint #10855243, filed 2016-04, 83,000 miles“The antilock safety is preventing me from starting my vehicle. When it does start, and I go to an intersection to turn the truck will then stall out. It can cause a wreck. It is a huge safety issue, time consuming, and money consuming when I have to wait 10 minutes to try to start my truck, or it doesn't start, I have to replace it for $450+ which I don't have to replace the ignition switch and it's dangerous because if it does let it start I have to be careful because it will stall out on any given second causing a catastrophe!!! …”
NHTSA complaint #11415729, filed 2021-05, 100,000 miles“The security lock system on my Hummer H3 intermittently flashes during start causing the vehicle to not crank. Normally I have to wait 10 to 20 minutes for the system to reset itself and she starts right up, but today it's been 8 hours. Finally I had to call for a tow to the GM dealership. We got lucky today. At 10am my wife thought she was going into labor, we get to the truck and no start. Just a flashing security lock symbol flashing at me. Ended up using her car. This is definitely a safety concern, what if her water had broke or my son was needing medical attention. …”
NHTSA complaint #10872435, filed 2016-06, 107,000 miles“Upper rail rubbed against the plastic tank on the radiator, creating a crease that fractured, spraying radiator fluid all over the engine compartment. Radiator had to be replaced. Tech advised that the design of the vehicle was faulty because the rail was installed too close to the radiator. He shimmed it to prevent it from happening it again.”
NHTSA complaint #10732959, filed 2015-07, 77,079 miles“The last dealership I went to they advised to come th the dealership but when I got there nobody wasn’t trying to work there instead the said that it was going to be hard to work on it cause nobody work on those cars anymore and then they said they were going to order the part but never call me back for it. Call them but gave me the runaround basically.”
NHTSA complaint #11591369, filed 2024-05Related service bulletins
- 11023091Sep 9, 2025New Vehicle Monitoring Programs Section in IVH
- 11021792Aug 7, 2025This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the…
- 11020816Jul 18, 2025This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- 11019074May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019073May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019072May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11017252Mar 28, 2025This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- 11014455Feb 20, 2025This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint…
- 11011782Dec 7, 2024This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads…
- 11007744Sep 12, 2024This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General…
Other or unknown: other model years
Other parts of the 2008 Hummer H3
34 complaintsVisibility (wipers, defrost, mirrors)
27 complaintsEngine
18 complaintsAir bags
17 complaintsBody and structure
8 complaintsSteering
5 complaintsBrakes
4 complaintsEngine cooling
4 complaintsEquipment
4 complaintsFuel system
4 complaintsSuspension
4 complaintsExterior lighting
3 complaints
← All problems reported for the 2008 Hummer H3
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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