Vehicle Data Hub

2003 Hummer H2 electrical system problems

Owners reported electrical system problems in 24 complaints for the 2003 Hummer H2, 13% of the complaints on file. It is the 2nd most reported problem area for this model year.

At a glance

Complaints
24 13% of this year's complaints
Typical mileage
56,000 miles 19 complaints with mileage
Crashes and fires
0 and 1
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When electrical system problems show up

Electrical system complaints by mileage, 2003 Hummer H2 Complaints by odometer reading in 20,000-mile steps. The median is about 56,000 miles. 0k to 20k miles: 0 complaints 20k to 40k miles: 4 complaints 40k to 60k miles: 6 complaints 60k to 80k miles: 3 complaints 80k to 100k miles: 3 complaints 100k to 120k miles: 2 complaints 120k to 140k miles: 0 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 1 complaints 040k80k120k160k200k miles Typical: 56,000 miles
Based on 19 complaints that include mileage. 53% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles0
20k to 40k miles4
40k to 60k miles6
60k to 80k miles3
80k to 100k miles3
100k to 120k miles2
120k to 140k miles0
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles1

What the data shows

Of the 19 electrical system complaints that report mileage, the median is about 56,000 miles, and 53% were reported before 60,000 miles.

These complaints mention 1 fire.

What owners wrote

I went to crank up my hummer to warm it up due to the very cold weather once I cranked the hummer I immediately smelled a very strong burning odor. It begin to smoke and my husband yelled it your truck and I looked and saw the smoke getting worse and thicker. I unhooked my infant son's car seat belt and took him out of the vehicle.

Reported at 97,000 miles, February 2015 Fire

'03 h2, speedo quit working at 26k kms. Took back on warranty 5-6 times. Dealer replaced cluster twice. Still doesn't work 8 years later, but hey! I only have 50k on it !!!

Reported at 26,000 miles, March 2004

Other problems reported for the 2003 Hummer H2

Electrical system problems in other years

  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003

Electrical system problems across all Hummer models