repaired · 2017 Q2
Defroster/defogger/hvac system: fan/motor
Risk. If the blower motor connector module overheats, it can increase the risk of a fire.
2007 Hummer H3Problems, recalls & complaints
NHTSA has logged 238 owner complaints about the 2007 Hummer H3, most often about the electrical system. It is covered by 2 safety recalls, and for recall 15V-421 the manufacturer reports only 45% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 10, 2026. Updated daily. Photo: Jeremy from Sydney, Australia, CC BY 2.0.
Complaints by system
Where the 2007 Hummer H3 has problems
238 complaints grouped by the system owners reported.
76Electrical system15 crash/fire/injury
44Engine3 crash/fire/injury
24Visibility/wiper
22Structure1 crash/fire/injury
20Visibility3 crash/fire/injury
19Air bags11 crash/fire/injury
19Power train1 crash/fire/injury
13Engine and engine cooling
12Electronic stability control (ESC)
6015 other systems11 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 76 | 15 |
| Engine | 44 | 3 |
| Visibility/wiper | 24 | 0 |
| Structure | 22 | 1 |
| Visibility | 20 | 3 |
| Air bags | 19 | 11 |
| Power train | 19 | 1 |
| Engine and engine cooling | 13 | 1 |
| Electronic stability control (ESC) | 12 | 1 |
| 15 other systems | 60 | 11 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
2 recalls
2007 Hummer H3 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
no report yet
Body: hood
Risk. IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Hummer.
Mileage at failure
When do electrical system problems start?
90kmiles, median
Based on the odometer reading in 69 electrical system complaints. 57% were reported before 100,000 miles.
3under 30k miles39under 100k miles30100k miles or more
Best & worst years
2007 vs. every other H3 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the H3 median. How we score
'06'07'08'09'10
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2007 Hummer H3 safety ratings
2007 Hummer H3 4-DR w/SAB in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
Frontal crashNot rated
Side barrierNot rated
- Rollover: 3 stars (24.6% risk)
- Stability control: Standard
- Forward collision warning: No
- Lane departure warning: No
In owners' words
What H3 owners report
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
The contact owned a 2007 Hummer H3. The contact stated that while the vehicle was parked, the AC was turned on, and the contact became aware of smoke entering the cabin of the vehicle. The smoke was coming from the front passenger's side underneath the dashboard. The AC was turned off, and the…
Odometer Fraud. The contact purchased a 2007 Hummer H3. The contact discovered that there was a mileage discrepancy. The vehicle was an independent dealer sale. At the time of purchase, the vehicle mileage was 122,791 and at the time of registration, it was discovered that the mileage was 122,799…
ON 3/13/2020 MY WIFE WAS DRIVING OUR 2007 HUMMER H3 WHEN THE ENGINE COMPARTMENT AND DASH AREA CAUGHT ON FIRE. THE BLOWER MOTOR CONNECTOR MODULE HAD BEEN REPLACED RECENTLY AS PART OF A SAFETY RECALL. THE VEHICLE WAS IN MOTION AND SHE HAD JUST MADE A LEFT TURN. ALTHOUGH THE PART HAD BEEN REPLACED, I…
Own a 2007 H3?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.