2007 Hummer H3 electrical system problems
Owners reported electrical system problems in 76 complaints for the 2007 Hummer H3, 23% of the complaints on file. It is the most reported problem area for this model year.
At a glance
- Complaints
- 76 23% of this year's complaints
- Typical mileage
- 90,000 miles 69 complaints with mileage
- Crashes and fires
- 1 and 14
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When electrical system problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 2 |
| 20k to 40k miles | 3 |
| 40k to 60k miles | 7 |
| 60k to 80k miles | 17 |
| 80k to 100k miles | 10 |
| 100k to 120k miles | 13 |
| 120k to 140k miles | 10 |
| 140k to 160k miles | 4 |
| 160k to 180k miles | 2 |
| 180k to 200k miles | 1 |
| 200k+ miles | 0 |
What the data shows
Of the 69 electrical system complaints that report mileage, the median is about 90,000 miles, and 17% were reported before 60,000 miles.
These complaints mention 1 crash, 14 fires.
What owners wrote
Tl*the contact owns a 2007 hummer h3. The contact was notified that his vehicle caught fire while parked in the garage. The fire originated under the hood near the battery area. The vehicle was destroyed. The fire department filed incident number 09060410 and the manufacturer filed case number 71-731425623, reference number 6744389. The failure and current mileages were 33,184.
The battery continues to be dead: sometimes starts, sometimes doesn't. I've replaced the battery twice and problem remains. How many complaints does it take for the manufacturer to remedy this problem? I love my hummer, but I am afraid to go anywhere in it because I don't want to get stranded when it is below freezing outside. Currently I have to carry a spare battery and jumper cables in my backseat just to get it started when this problem acts up. Also affecting my ability to work and take care of my family.
Other problems reported for the 2007 Hummer H3
- Engine 55 complaints
- Wipers, windshield & visibility 44 complaints
- Body & structure 23 complaints
- Air bags 19 complaints
- Drivetrain & axles 16 complaints