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2007 Hummer H3

Owner reports · Recalls · Investigations

More warning signs than most H3 years

Owner complaints for the 2007 Hummer H3 are substantially higher than the model-year median of 91.

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When problems were reported

Mileage at the reported incident

192 reports with mileage · 45 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 76 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 44 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Visibility/wiper. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

12 crash reports18 fire reports13 injury reports

Electrical System complaints

76 reports
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197,000 miles · Jul 2, 2026
Electrical SystemFire

The contact owned a 2007 Hummer H3. The contact stated that while the vehicle was parked, the AC was turned on, and the contact became aware of smoke entering the cabin of the vehicle. The smoke was coming from the front passenger's side underneath the dashboard. The AC was turned off, and the smoke ceased. The contact exited th…

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The contact owned a 2007 Hummer H3. The contact stated that while the vehicle was parked, the AC was turned on, and the contact became aware of smoke entering the cabin of the vehicle. The smoke was coming from the front passenger's side underneath the dashboard. The AC was turned off, and the smoke ceased. The contact exited the vehicle and went into the store. The contact exited the store and was informed by a shopper that the vehicle was on fire. The vehicle was unoccupied. The fire was coming from underneath the hood of the vehicle. The Fire Department arrived on the scene and extinguished the fire. The Fire Inspector informed the contact that the fire was a thermal event related to HVAC wiring. In addition, the contact was informed of an unknown recall; however, the VIN was not associated with a recall related to the failure. The vehicle was destroyed. The charred remains of the vehicle were towed to a local tow yard. A Police report was filed. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 197,000.

NHTSA ODI #11748012

122,799 miles · Jun 4, 2025
Electrical System

Odometer Fraud. The contact purchased a 2007 Hummer H3. The contact discovered that there was a mileage discrepancy. The vehicle was an independent dealer sale. At the time of purchase, the vehicle mileage was 122,791 and at the time of registration, it was discovered that the mileage was 122,799 but additional documents also sh…

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Odometer Fraud. The contact purchased a 2007 Hummer H3. The contact discovered that there was a mileage discrepancy. The vehicle was an independent dealer sale. At the time of purchase, the vehicle mileage was 122,791 and at the time of registration, it was discovered that the mileage was 122,799 but additional documents also showed that the mileage was unchanged over a 3-year period.

NHTSA ODI #11664822

117,000 miles · Apr 14, 2021
Electrical System

IGNITION SWITCH STAYS ON WITH KEY OFF AND OUT AND ALARM GOES OFF SOMETIMES JUST SITTING AND BATTERY GOES DEAD

NHTSA ODI #11408121

110,000 miles · Feb 2, 2021
Electrical SystemEngineUnknown Or OtherFire

ON 3/13/2020 MY WIFE WAS DRIVING OUR 2007 HUMMER H3 WHEN THE ENGINE COMPARTMENT AND DASH AREA CAUGHT ON FIRE. THE BLOWER MOTOR CONNECTOR MODULE HAD BEEN REPLACED RECENTLY AS PART OF A SAFETY RECALL. THE VEHICLE WAS IN MOTION AND SHE HAD JUST MADE A LEFT TURN. ALTHOUGH THE PART HAD BEEN REPLACED, I STILL BELIEVE THAT THIS RECA…

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ON 3/13/2020 MY WIFE WAS DRIVING OUR 2007 HUMMER H3 WHEN THE ENGINE COMPARTMENT AND DASH AREA CAUGHT ON FIRE. THE BLOWER MOTOR CONNECTOR MODULE HAD BEEN REPLACED RECENTLY AS PART OF A SAFETY RECALL. THE VEHICLE WAS IN MOTION AND SHE HAD JUST MADE A LEFT TURN. ALTHOUGH THE PART HAD BEEN REPLACED, I STILL BELIEVE THAT THIS RECALL ISSUE WAS THE CAUSE OF SAID FIRE. THE FIRE DEPARTMENT CALLED IT AN ELECTRICAL ISSUE. THERE WAS NO WARNING AT ALL. THIS WAS TRAUMATIC FOR MY WIFE SHE HAD TO JUMP OUT OF THE VEHICLE AND HAD A MISCARRIAGE.

NHTSA ODI #11391170

179,000 miles · Aug 8, 2020
Electrical SystemEngineUnknown Or Other

OIL LIGHT COMES ON WHEN IDLE. TRUCK LOSES PRESSURE. NO DEALERSHIP SOLUTION.

NHTSA ODI #11344113

Mileage unknown · Feb 9, 2019
Electrical SystemElectronic Stability Control (esc)

HELLO,MY NAME IS [XXX],AND WE ARE HAVING THE SAME ISSUES AS MANY SEEM TO BE HAVING AS WE JUST SEEN ON GOOGLE AND MORE,GOT IN THE HUMMER THIS MORNING STARTED UP FINE,STOPPED AT GAS STATION FOR A DRINK ON WAY TO WORK,WENT BACK TO CAR AND IT WOULD NOT START,AFTER SEVERAL TRIES IT FINALLY DID,MAKING ME LATE FOR WORK. HAVE HAD THE 2…

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HELLO,MY NAME IS [XXX],AND WE ARE HAVING THE SAME ISSUES AS MANY SEEM TO BE HAVING AS WE JUST SEEN ON GOOGLE AND MORE,GOT IN THE HUMMER THIS MORNING STARTED UP FINE,STOPPED AT GAS STATION FOR A DRINK ON WAY TO WORK,WENT BACK TO CAR AND IT WOULD NOT START,AFTER SEVERAL TRIES IT FINALLY DID,MAKING ME LATE FOR WORK. HAVE HAD THE 2007 HUMMER H3 FOR MAYBE 4 DAYS!!! AND ALREADY HAVING ISSUES? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #11175820

134,565 miles · Sep 18, 2018
Electrical System

TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING 45-50 MPH, THE VEHICLE STALLED WITHOUT WARNING AND ALL THE ELECTRICAL FUNCTIONS FAILED TO OPERATE. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER APPROXIMATELY THREE MINUTES. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED OR REPAIRED. THE DEALER AND MANUFACTURER WERE NOT CONTACT…

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TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING 45-50 MPH, THE VEHICLE STALLED WITHOUT WARNING AND ALL THE ELECTRICAL FUNCTIONS FAILED TO OPERATE. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER APPROXIMATELY THREE MINUTES. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED OR REPAIRED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 134,565.

NHTSA ODI #11130047

120,000 miles · Aug 22, 2018
Electrical SystemUnknown Or Other

PASSLOCK ISSUES NOT ALLOWING THE VEHICLE TO START. WAIT 10MIN WITH MULTIPLE ATTEMPTS.

NHTSA ODI #11121784

135,000 miles · Aug 22, 2018
Electrical SystemUnknown Or Other

I DON'T KNOW WHY I HAVE TO WAIT 10 MIN.BEFORE THE TRUCK WILL START THIS IS CRAZY AND NO ONE WANTS TO FIX THE ISSUE.I HAVE HAD IT TO 2 DIFFERENT DEALERS AND THEY SAY ITS ALL THE HUMMER H3S THAT THIS PROBLEM IS IN THE COMPUTER AND WILL COST ME OVER $800 TO FIX THATS CRAZY THIS SHOULD BE PUT FOR RECALL NOT GOOD BUSINESS I HAVE CHIL…

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I DON'T KNOW WHY I HAVE TO WAIT 10 MIN.BEFORE THE TRUCK WILL START THIS IS CRAZY AND NO ONE WANTS TO FIX THE ISSUE.I HAVE HAD IT TO 2 DIFFERENT DEALERS AND THEY SAY ITS ALL THE HUMMER H3S THAT THIS PROBLEM IS IN THE COMPUTER AND WILL COST ME OVER $800 TO FIX THATS CRAZY THIS SHOULD BE PUT FOR RECALL NOT GOOD BUSINESS I HAVE CHILDREN THAT IF THERES AN EMERGANCY MY HUMMER WONT START. REALLY GM GET IT TOGETHER THIS HAPPENES ALL THE TIME AND HALF THE TIME I HAVE TO WAIT 20 TO 30 MIN FOR IT TO START

NHTSA ODI #11121746

105,000 miles · Jun 21, 2018
Electrical SystemEngineFuel/propulsion System

SIR/MA'AM, I AM WRITING TO COMPLAIN ABOUT THE 2007 HUMMER H3 SECURITY SYSTEM NOT ALLOWING THE VEHICLE TO START UNDER CERTAIN CONDITIONS. I MAINTAIN MY VEHICLE TO HIGH STANDARDS AND OVER THE LAST 8 MONTHS HAVE HAD ISSUES STARTING MY HUMMER. WHEN THE HUMMER DOES NOT START, YOU MUST WAIT 10-15 MINUTES TO EVEN ATTEMPT TO RESTAR…

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SIR/MA'AM, I AM WRITING TO COMPLAIN ABOUT THE 2007 HUMMER H3 SECURITY SYSTEM NOT ALLOWING THE VEHICLE TO START UNDER CERTAIN CONDITIONS. I MAINTAIN MY VEHICLE TO HIGH STANDARDS AND OVER THE LAST 8 MONTHS HAVE HAD ISSUES STARTING MY HUMMER. WHEN THE HUMMER DOES NOT START, YOU MUST WAIT 10-15 MINUTES TO EVEN ATTEMPT TO RESTART. THE VEHICLE WILL TURN OVER, BUT NO FUEL IS SENT TO THE ENGINE TO START. IF IT DOESN'T START AGAIN, YOU MUST WAIT ANOTHER 10-15 MINUTES. THE LATTER HAS HAPPENED TO ME 5 OR 6 TIMES IN JUST THE LAST 2 MONTHS. THERE HAVE BEEN NUMEROUS COMPLAINTS TO GM ABOUT THIS EXACT ISSUE, AND HAS FALLEN ON DEAF EARS. MANY VEHICLE FORUM USERS COMPLAIN OF THE EXACT ISSUE AS WELL, WITH ZERO ASSISTANCE FROM GM AS SEEN HERE: HTTPS://WWW.CARGURUS.COM/CARS/DISCUSSION-C8039_DS531571 I AM CONCERNED THAT IF THE SPORADIC SECURITY LOCKDOWN (PASSLOCK) OCCURS WHILE DRIVING, FUEL IS CUT OFF FROM THE RUNNING ENGINE, SPEED/STEERING/BRAKING WILL BE MINIMIZED, AND THE POSSIBILITY OF A CRASH IS INCREASED EXPONENTIALLY. PLEASE ADVISE GM THERE NEEDS TO BE A FIX FOR THIS AND ENSURE THEY COMPLY! THANK YOU FOR YOUR TIME. I BELIEVE MY PHOTOS OF THE BLOWER MOTOR FAN RESISTOR BEING BURNT HELPED GET GM ISSUE A RECALL, AND I HOPE THIS WILL URGE THEM TO FIX AS WELL

NHTSA ODI #11102929

Official recalls

2

15V421000 · 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

0

No exact-year investigations in this snapshot.