Vehicle Data Hub

2007 Hummer H3 problems

NHTSA has received 335 complaints about the 2007 Hummer H3, and 23% of them involve electrical system. After that come engine (16%) and wipers, windshield & visibility (13%).

At a glance

Complaints
335 filed with NHTSA
Most reported
Electrical system 23% of complaints
Crashes and fires
21 and 24
Injuries and deaths
23 and 0
Typical mileage
84,000 miles 269 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

When problems show up

Complaints by mileage, 2007 Hummer H3 Complaints by odometer reading in 20,000-mile steps. The median is about 84,000 miles. 0k to 20k miles: 21 complaints 20k to 40k miles: 20 complaints 40k to 60k miles: 32 complaints 60k to 80k miles: 59 complaints 80k to 100k miles: 35 complaints 100k to 120k miles: 38 complaints 120k to 140k miles: 36 complaints 140k to 160k miles: 9 complaints 160k to 180k miles: 12 complaints 180k to 200k miles: 7 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 84,000 miles
Based on 269 complaints that include mileage. 27% 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 miles21
20k to 40k miles20
40k to 60k miles32
60k to 80k miles59
80k to 100k miles35
100k to 120k miles38
120k to 140k miles36
140k to 160k miles9
160k to 180k miles12
180k to 200k miles7
200k+ miles0

What the data shows

Among the 269 complaints that report mileage, the typical (median) problem appeared at about 84,000 miles. For electrical system specifically, the median reported mileage is about 90,000 miles (69 complaints with mileage).

Safety-related details: 21 complaints mention a crash; 24 complaints mention a fire; 23 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2007 ranks 2nd most-complained-about out of 4 model years of the Hummer H3 with enough data (78 complaints in that window). It is also covered by 2 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Tl*the contact owns a 2007 hummer h3. While driving 40 MPH, the contact was involved in a head-on crash with the owner of an oldsmobile minivan. The contact's passenger side air bag failed to deploy. The vehicle caught fire under the passenger side of the hood. The horn began to sound and the radio was activated during the fire. The contact's on star feature instantly notified the police and paramedic. The fire department extinguished the fire and the vehicle was destroyed.

Reported at 736 miles, June 2007 CrashFireInjury

I was in an accident 3/22/2009, 2007 hummer h3, the other driver lost control and his explorer traveled horizontally on freeway 5, in los angeles. I t boned him I was traveling 65 MPH at time of impact. The hummer was totaled the front end damaged fatally. My airbags did not deploy. I suffered and still suffer from a back injury I have had 5 procedures to my back for pain and numbness. I was the driver. My husband was a passenger and he required knee surgery due to an injury caused by hitting the dash.

Reported at 22,000 miles, March 2009 CrashInjury

My wife was driving the posted speed limit of 45 MPH, when another driver turned from a cross street into her, causing a head on collision. Full frontal damage to both vehicles occurred, and the airbag in our vehicle did not deploy. The airbag in the other vehicle did deploy. Onstar was notified of the accident as well as local law enforcement. The other driver was designated as the at- fault driver in the accident.

Reported at 17,500 miles, April 2008 CrashInjury

The battery continues to be dead: sometimes starts, sometimes doesn't. I've replaced the battery twice and problem remains. How many complaints does it take for the manufacturer to remedy this problem? I love my hummer, but I am afraid to go anywhere in it because I don't want to get stranded when it is below freezing outside. Currently I have to carry a spare battery and jumper cables in my backseat just to get it started when this problem acts up. Also affecting my ability to work and take care of my family.

Reported at 135,000 miles, January 2017

I stopped at gas station for fuel. Vehicle would not start for approximately 10 minutes after fueling up. Then it started. Apparently this is a wide spread problem with the hummer, as I have read a number of incidents reported on line with same issue.

Reported at 127,250 miles, July 2018

Other model years of the H3

Best and worst years for the Hummer H3