Vehicle Data Hub

2006 Hummer H3 engine problems

Owners reported engine problems in 85 complaints for the 2006 Hummer H3, 18% of the complaints on file. It is the 2nd most reported problem area for this model year.

At a glance

Complaints
85 18% of this year's complaints
Typical mileage
71,000 miles 73 complaints with mileage
Crashes and fires
0 and 1
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2006 Hummer H3 Complaints by odometer reading in 20,000-mile steps. The median is about 71,000 miles. 0k to 20k miles: 9 complaints 20k to 40k miles: 5 complaints 40k to 60k miles: 7 complaints 60k to 80k miles: 19 complaints 80k to 100k miles: 12 complaints 100k to 120k miles: 10 complaints 120k to 140k miles: 10 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 71,000 miles
Based on 73 complaints that include mileage. 29% 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 miles9
20k to 40k miles5
40k to 60k miles7
60k to 80k miles19
80k to 100k miles12
100k to 120k miles10
120k to 140k miles10
140k to 160k miles1
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Of the 73 engine complaints that report mileage, the median is about 71,000 miles, and 29% were reported before 60,000 miles.

These complaints mention 1 fire.

What owners wrote

Tl* the contact owns a 2006 hummer h3. The contact was traveling 50 MPH when the smell of coolant emitted inside of the vehicle and white smoke was visible from under the hood. The check engine warning light illuminated intermittently with the failure. The contact confirmed that the engine was over heating. The vehicle was taken to a private mechanic who confirmed that the radiator needed to be replaced. The manufacturer was contacted. The vehicle was not repaired.

Reported at 65,934 miles, May 2012 Fire

I went in to dealer for what I called a fluttering periodic idle. They took a look $200.00 later told me I had misfire in #2 and #5 and needed new head. You can imagine my comments and he said it is common he just did one last week on the same year and type h3! Well I was in touch with GM - the car is out of warranty but low mileage. They did cover a portion and I was responsible for the rest. Well I pick up week later. Was told it was test driven and runs great.

Reported at 42,000 miles, March 2013

Other problems reported for the 2006 Hummer H3

Engine problems in other years