There are 1 owner-reported fuel system complaints for the 2006 Hummer H2in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
HEAVY FUMES ARE PRESENT INSIDE AND OUTSIDE THE VEHICLE AFTER THE FUEL TANK IS FILLED AND PERSISTS UNTIL THE FUEL GAUGE READS 7/8 OF A TANK. HAVE NOT DETERMINED WHAT IS CAUSING THE FUMES OTHER THAN IT ONLY HAPPENS WHEN THE FUEL TANK IS FULL. CURRENT SOLUTION IS TO NOT FILL UP THE FUEL TANK COMPLETELY. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026