There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2008 Hummer H2 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)P code P0872 6L50/6L80/6L90 - Automatic Transmission
EARLY FAILURE OF 6L80 TRANSMISSION AT 110K MIKES CAR IS WELL MAINTAINED AND SERVICED PER MANUAL. VEHICLE WAS PERFORMING AS EXPECTED. 4 PERSONS IN THE VEHICLE WITH NOTHING IN TOW AND NO EXTRA CARGO. IN THE MIDDLE OF AN INTERSECTION AFTER STARTING OFF, THE VEHICLE LOST POWER TO THE WHEELS. DRIFTED TO SIDE OF ROAD, BUT ALMOST GOT HIT BY A TRUCK AND WOULD HAVE IF THE FAILURE OCCURRED 1 SECOND EARLIER. GM HAS REDESIGNED THE FAILURE POINTS OF PUMP, TEHCM AND VALVES, FAILURE OCCURS WITH NO WARNING.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.