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Electrical systemPart report

2006 Hummer H2 Electrical system Problems

Complaints
4about this part
Share
18%of 22 total for the year
Median mileage
155,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2006 Hummer H2, 18% of the 22 complaints for this model year. Where a mileage was given, the median is 155,000 miles. 1 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.

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.

“I purchased a 2006 Hummer H2 at cerritos Hummer. I currently have almost 55,000 miles. Today I was parking my car and noticed the steering was extremely hard to turn. Also the brakes were really weak. I used all the energy I had to get into a gas station driveway. I drove about 1 block because I needed gas where I noticed oil dropping under the car. I checked under the hood and the oil was coming out near the power steering pump. I opened the power steering reservoir and saw that there was very little oil because it had dropped under my car. …”

NHTSA complaint #10279740, filed 2009-08, 54,500 miles

“Vehicle had been driven approximately 2 miles from start time, was stationary and unoccupied for approximately 10-25 minutes. Vehicle interior caught fire at the base of the top sitting area of the rear seat, flames from fire melted the over head interior light and ignited a fire on the head liner, which caused the fire to spread under neath the headliner and roof of the vehicle, melting the exterior paint. There was no prior indication of burning when driving or after parking the vehicle prior to the fire. …”

NHTSA complaint #10893801, filed 2016-08, 120,000 miles

“The contact owns a 2006 Hummer H2. The contact stated while driving at undisclosed speeds with the A/C activated, the contact became aware of an abnormal burning electrical odor. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the blower motor resistor needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 196,000.”

NHTSA complaint #11589975, filed 2024-05, 196,000 miles

“The contact owns a 2006 Hummer H2. The contact stated while driving and activating the blower motor, the blower motor was intermittently inoperable. The contact stated that an abnormal electrical burning odor was coming from the vehicle. The contact stated that upon activation, the A/C and the heating systems were intermittently inoperable. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the blower motor wiring harness needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. …”

NHTSA complaint #11664399, filed 2025-06, 190,000 miles

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2008229%
2007327%
2006418%
20052734%
20041424%
20032417%

Other parts of the 2006 Hummer H2

Brakes
4 complaintsSuspension
4 complaintsEngine
3 complaintsSteering
3 complaintsAir bags
2 complaintsEngine cooling
2 complaintsOther or unknown
2 complaintsSeats
2 complaintsTransmission and drivetrain
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEquipment
1 complaintsFuel system
1 complaints

← All problems reported for the 2006 Hummer H2

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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