IllustrationVEHICLE GOES INTO REDUCED POWER MODES AT ANY HIGHWAY SPEEDS. THE CODES INVOLVE A THROTTLE BODY, CRANKSHAFT SENSOR AND PEDAL. THIS IS EXTREMELY DAMGEROUS AT HIGHWAY SPEEDS SINCE VEHICLE IS IMMOBILE.
2009 Hummer H3
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2009 Hummer H3 do not stand out strongly from the model-year median of 91.
About this comparison →How this year compares
Owner complaints by model year
Compare all H3 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
90–25K
525–50K
1150–75K
1175–100K
12100–150K
2150K+
50 reports with mileage · 19 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 34 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
2 crash reports5 fire reports3 injury reports
Power Train complaints
2 reportsP2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH A/B VOLTAGE CORRELATION THAT PUTS THE VEHICLE INTO ?STABILITRAK DISABLED", "TRACTION CONTROL DISABLED", AND "REDUCED ENGINE POWER". WHILE THERE IS A TSB#11-06-04-007B REGARDING THIS ISSUE AND WARRANTY COVERAGE; UNFORTUNATELY IT DOES NOT APPLY TO MY ENGINE. HOWEVER, SINCE THIS IS …
Read full complaint
P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH A/B VOLTAGE CORRELATION THAT PUTS THE VEHICLE INTO ?STABILITRAK DISABLED", "TRACTION CONTROL DISABLED", AND "REDUCED ENGINE POWER". WHILE THERE IS A TSB#11-06-04-007B REGARDING THIS ISSUE AND WARRANTY COVERAGE; UNFORTUNATELY IT DOES NOT APPLY TO MY ENGINE. HOWEVER, SINCE THIS IS A WIDELY KNOW ISSUE, AND THIS VEHICLE IS EXPERIENCING THE SAME CONDITIONS, ONE WOULD THINK THAT MY VEHICLE WOULD BE SERVICED UNDER THIS TSB EXTENDED WARRANTY COVERAGE. 12/04/2014: FIRST SERVICE ATTEMPT: CLEAR CODE EVERYTHING TESTS FINE, LET?S SEE IF IT HAPPENS AGAIN. 12/10/2014: SECOND SERVICE ATTEMPT: BOTH THROTTLE BODY AND ACC PEDAL POSITION SENSOR TESTED "GOOD". WEAK BATTERY - REPLACE BATTERY. 12/22/2014: THIRD SERVICE ATTEMPT: TECH REPLACED ACCELERATOR PEDAL. RELEARNED THROTTLE/IDLE. 12/26/2014: FORTH SERVICE ATTEMPT: RELEARNED THROTTLE/IDLE PROCEDURE. 01/13/2015: FIFTH SERVICE ATTEMPT: REPROGRAM AND APPLY 6 UPDATES TO ECM. 01/14/2015: CODE THROWN AGAIN: DEALERSHIP ADVISING TO REPLACE THROTTLE BODY (BUT UNCERTAIN THAT THIS WILL FIX THE PROBLEM)? *TR
Official recalls
215V421000 · Visibility:defroster/defogger/hvac System:fan/motor
Jul 1, 2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.
Consequence & remedy
Consequence: If the blower motor connector module overheats, it can increase the risk of a fire.
Remedy: GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.
10V179000 · Structure:body:hood
Apr 30, 2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTICED, ADDITIONAL CLIPS COULD FRACTURE AND THE HOOD LOUVER COULD DETACH FROM THE VEHICLE.
Consequence & remedy
Consequence: IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.
Remedy: DEALERS WILL APPLY AN ADHESIVE TO THE HOOD LOUVER TO SECURE IT TO THE HOOD. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 12, 2010. OWNERS MAY CONTACT HUMMER AT 800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.