2008 Hummer H3 problems, complaints & recalls
Most-reported problem areas: Electrical System (16) · Visibility/Wiper (12) · Air Bags (11)
🧭 Reliability snapshot
Compared against other Hummer H3 model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
87 NHTSA complaints that reported an odometer reading.
Safety recalls (2)
Visibility:defroster/Defogger/Hvac System:fan/Motor 2015-07-01 · campaign 15V421000 · 164,993 vehicles
Defect: 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.
Risk: If the blower motor connector module overheats, it can increase the risk of a fire.
Fix: 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.
Structure:body:hood 2010-04-30 · campaign 10V179000 · 162,129 vehicles
Defect: 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.
Risk: IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.
Fix: 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.
Service bulletins (909)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2025-09-09 · 13598 · Other
new vehicle monitoring programs section in ivh
Unknown Or Other 2025-08-07 · PIC5650M · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. technician may find diagnostic trouble codes b3055, b3060, b3935, c0750, c0755, c0760, c0765, and/o
Unknown Or Other 2025-07-18 · PIP5601C · Service Bulletin/Repair Instructions
this pi communicates the requirement to provide a pico file to receive diagnostic assistance from tac.
Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.
Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.
Unknown Or Other 2025-05-30 · PIT5074R · Service Bulletin/Repair Instructions
this preliminary information communication provides information to the technician about the use of j-35616-64b and mini 50 terminal test probe, replacement terminals, and terminated leads.
Showing the 6 most recent of 909 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-04-16 · Suspension:front:springs:leaf Spring Assembly · 67,000 mi“the contact owns a 2008 hummer h3. the contact stated that while his son was driving 35 mph, there was a loud metal rattling sound while attempting to turn left or right. the driver also heard the sound coming from the rear of the vehicle. the vehicle was taken to an independent mechanic, where it was diagnosed, and it was determined that the leaf …”
2026-01-30 · Fuel/Propulsion System“the fuel level sensor stopped working now it say i’m on e these go out on these cars and are on the recall list, but not on my vehicle yet…”
2025-07-13 · Electrical System“the pass lock in this vehicle is faulty. on numerous occasions, it has left me unable to start the vehicle, but if you wait 10 minutes each time, it will start again, but it happens all the time. i've seen numerous complaints online and gm needs to do something about it.…”
2025-05-19 · Visibility · 178,000 mi“the contact owns a 2008 hummer h3. the contact received notification of nhtsa campaign number: 15v421000 (visibility); however, the dealer refused to perform the recall repair due to the age of the vehicle. the contact stated that the dealer had exceeded a reasonable amount of time for the recall repair. the manufacturer was not made aware of the i…”
2024-05-29 · Unknown Or Other“the last dealership i went to they advised to come th the dealership but when i got there nobody wasn’t trying to work there instead the said that it was going to be hard to work on it cause nobody work on those cars anymore and then they said they were going to order the part but never call me back for it. call them but gave me the runaround basic…”
2024-02-04 · Wheels“engine was replaced at 163,000 miles now at 168,000 miles the frame is rusted beyond repair and is about to give at any moment nothing really left near rear axels. this could have definitely caused a horrible accident to myself or others having a big car just give way and collapse. took it to mechanic who warned me first then next day took it t…”
2024-01-17 · Engine“exhaust leaking in cab of the car .exhaust bolts broke or manifold cracked problem i heard about on line .on a long trip could make you passout with the fumes .please check it out .on most inline 5 cyclinder engines gm makes .thank you [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)…”
2023-02-22 · Engine · 1,000 mi“the contact owns a 2008 hummer h3. the contact stated that the vehicle intermittently failed to start up without warning. the contact stated that after waiting ten minutes the vehicle started. the contact stated that recently the failure had become more frequent. the contact had taken the vehicle to a dealer however, the mechanic was unable to dete…”
2023-02-08 · Electrical System:ignition:anti-Theft:control Module · 101,421 mi“the contact owns a 2008 hummer h3. the contact stated that the vehicle failed to start. the anti-theft system warning light illuminated. the contact waited 10 minutes for the vehicle to reset, per the vehicle owner’s manual instruction. the contact was able to drive the vehicle. the contact stated that the failure reoccurred increasingly several ti…”
2022-10-24 · Engine“the contact owns a 2008 hummer h3. the contact stated that while driving at various speeds, an abnormal knocking sound was coming from the engine. the check engine warning light was illuminated. the contact stated that the failure worsened while driving at highway speeds. the contact called the dealer and the manufacturer and notified them about th…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.