2008 Hummer H3: Reliability Data

Source: NHTSA — 152 complaints
152
Total Complaints
78,000mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
4
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

48,800 25th Percentile
78,000 Median Mileage
102,210 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
30
ENGINE
18
AIR BAGS
13
VISIBILITY/WIPER
12
UNKNOWN OR OTHER
8
STRUCTURE:BODY
6
EQUIPMENT:APPLIANCE:AIR CONDITIONER
4
AIR BAGS:SIDE/WINDOW
4
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR
4
FUEL/PROPULSION SYSTEM
4

Severity Assessment

4
Crashes
8
Fires
5
Injuries
0
Deaths

Sample Complaint Reports

"2008 HUMMER H3 ALPHA NUMEROUS PROBLEMS WITHIN THE FIRST 30-DAYS OF OWNERSHIP. ALIGNMENT REPAIR 3 TIMES, LEAKING BRAKE FLUID REPAIR, 2 TIMES, BELT REPLACED 2 TIMES. *TR"
"I OWN A BRAND NEW BASE MODEL 2008 HUMMER H3 NOT EVEN DONE 300KMS ON THE METER AND I HEAR AND FEEL A RATTLING SOUND UNDER THE GAS AND BRAKE PEDAL WHEN THE CAR TRAVELS 10 MILES OR SO OR WHEN ITS VERY HOT, I LIVE IN THE MIDDLE EAST DUBAI AND ITS ALWAYS HOT HERE... SO PLEASE ADDRESS THIS ISSUE I THINK I..."
"TRACTION FAILED, SERVICE STAB SYS, SERVICE 4WD, TRACTION LIGHT CONSTANTLY LIT, 4WD LIGHT NO LONGER LIT ON TRANSFER CASE. I HAVE OWNED THE VEHICLE FOR 11 WEEKS, AND THE VEHICLE HAS ALREADY BEEN BACK TO THE DEALERSHIP TWICE (APRIL AND MAY) FOR THESE PROBLEMS WHICH HAPPEN WHILE DRIVING IN RAIN. ONSTA..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28