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Electrical systemPart report

2005 Hummer H2 SUT Electrical system Problems

Complaints
5about this part
Share
42%of 12 total for the year
Median mileage
50,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the electrical system of the 2005 Hummer H2 SUT, 42% of the 12 complaints for this model year. Where a mileage was given, the median is 50,000 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.

“While driving my 2005 h2 Hummer in a rain storm the windshield washer motor came on and started spraying water and would not stop until the motor quit working. Thank god I did not wreck. After checking other sites and complaints this looks like a defect not only in 2003 models but 2005 models as well.”

NHTSA complaint #10350448, filed 2010-08, 57,000 miles

“Speedometer started jumping and sticking at 70 MPH most common turn vehicle on off ,tried resetting it is at complete failure. Some times it will read 100 and just stay there veh. Has 48,956 miles on it. Thank you!”

NHTSA complaint #10260212, filed 2009-02, 48,000 miles

“Speedometer slowly stops working. Speed reading will decrease to zero while traveling at highway speeds & around town. At first happened periodically now happening more often.”

NHTSA complaint #10354045, filed 2010-09, 50,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2005542%

Other parts of the 2005 Hummer H2 SUT

Visibility (wipers, defrost, mirrors)
4 complaints
Brakes
2 complaints
Steering
2 complaints
Engine
1 complaints
Engine cooling
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2005 Hummer H2 SUT

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