"How reliable is the 2003 Hummer H2?"

"Based on 186 NHTSA complaints, the 2003 Hummer H2 has a median complaint mileage of 63000 miles. The most common issue is VISIBILITY."

"What are common problems with the 2003 Hummer H2?"

"The most frequently reported component in NHTSA complaints for the 2003 Hummer H2 is VISIBILITY, accounting for a significant portion of the 186 total complaints filed."

2003 Hummer H2: Reliability Data

Source: NHTSA — 186 complaints

186

Total Complaints

63,000mi

Median Mileage

VISIBILITY

Top Issue

Crash Reports

When Do Complaints Happen?

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

36,500 25th Percentile

63,000 Median Mileage

95,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

VISIBILITY

ELECTRICAL SYSTEM

VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR

SERVICE BRAKES

VISIBILITY:WINDSHIELD WIPER/WASHER

VISIBILITY/WIPER

STEERING

SERVICE BRAKES, HYDRAULIC

POWER TRAIN:AUTOMATIC TRANSMISSION

SUSPENSION:FRONT

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"I AM A RETIRED U.S ARMY TRANSPORATION OFFICER, WITH A DEGREE IN TRANSPORTATION FROM INDIANA UNIVERSITY. I'M ALSO A CURRENT AIR TRAFFIC CONTROL SPECIALIST IN RENO NEVADA. ON SEVERAL OCCASIONS (AT LEAST 5) DURING THE PAST 2 MONTHS I HAVE FOLLOWED A POV IN THE HOURS OF DARKNESS WITHOUT ANY TAILIGHTS ..."

"A HUMMER THROUGH A LARGE ROCK INTO MY WINDSHIELD THIS MORNING. WITH TIRES THE SIZE OF A COMMERCIAL VEHICLE, WHY ARE NO MUD FLAPS INSTALLED ON THIS MAKE OF CAR?? THIS APPEARS TO BE A VIOLATION OF WASHINGTON STATE RCW 46.37.500. *AK"

"MY RIGHT FRONT WHEEL, INNER BACKING AND AXLE CAME OFF. THE LOWER FLANGE BROKE AWAY FROM THE LOWER A-ARM. THIS HAPPENED WHILE I WAS DRIVING ON A PAVED ROAD NEAR MY HOUSE. THE A-ARM HIT THE GROUND AND SPUN THE H2 OFF THE ROAD AND INTO A TREE. THE RIGHT WHEEL'S BRAKE BACKING PLATE AND AXLE CAME OFF ..."

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