There are 1 owner-reported electrical system complaints for the 2008 Hummer H2in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL * THE CONTACT OWNS A 2008 HUMMER H2. THE CONTACT STATED THAT THE FRONT DRIVERS SIDE AND THE REAR DRIVERS SIDE POWER WINDOWS FAILED. THE CONTACT MENTIONED THAT WHEN ATTEMPTING TO OPEN THE REAR PASSENGER WINDOW, THE GLASS FELL INTO THE DOOR PANEL. IN ADDITION, THE FRONT DRIVERS SIDE DOOR GLASS FELL INTO THE DOOR PANEL SEVERAL DAYS AFTER THE INITIAL FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 72,000.
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