Hummer H3 Complaints (2006)

361 consumer complaints on file.

#11751883July 21, 2026
ELECTRICAL SYSTEM
Theses templates dosent recognize the key and kicks on the security system which stops the motor from turning on. So you are stuck for 10 minutes then you can try again all so sometimes the motor tries to turn on by just sticking the key in the ignition before you even turn it. By looking at youtube alot of the H3s and the Colorados do this
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710957January 14, 2026
STRUCTURE:FRAME AND MEMBERS, ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR
The contact owns a 2006 Hummer H3. The contact stated that the frame was rusted on the driver's side. The check engine warning light was illuminated. The contact looked underneath the vehicle and was able to see through the subframe. The contact also noticed cracks in sub frame. The contact was concerned about driving the vehicle. The vehicle was taken to an independent mechanic who determined there was an issue with the temperature sensor. While receiving an oil change, it was determined that the subframe was rusted. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that there was no recall coverage for the failure. The failure mileage was approximately 130,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698835November 11, 2025
ENGINE, UNKNOWN OR OTHER
The blower resistor and harness needs replaced it looks like it caught fire or default
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679484August 9, 2025
UNKNOWN OR OTHER
I was trying to get away from a stranger that was following me that was threatening and scary and when I got in the my Hummer h3 it wouldn't start its the ANTI THEFT that's thinking the car is being stolen this is happened several times of the car not starting i went to Google and YouTube and there's hundreds of videos complaining and giving instructions on waiting 10 min before trying to start the car , this is very dangerous especially for woman and it needs to be recalled and fixed before someone really gets hurt or killed , I was on scared
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633569January 2, 2025
ELECTRICAL SYSTEM, ENGINE
On the electrical, I refer to my air conditioning and heater. When I have my air selection to coldest and I drop 1 click for it to be less cool, my heater turns on and at times it smells like something burning. I have to turn it off . On the engine, after I hit 90,000 miles, I have to fill up my engine oil every 2-3 weeks because my vehicle is burning it quick or something. It doesn't leak oil at all. The oil just seems like it's burning somewhere and I ha e to be waisting money to buy oil $30 to $60 a month. Please help. Thank you!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632836December 28, 2024
SUSPENSION
Was driving this vehicle about 45 mph and began to shake violently. Was able to get it slowed down and back under control. Happened two more times on my drive home and took it to an auto repair shop today and found the frame is broken on both sides in front of rear leaf springs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11611276August 27, 2024
ENGINE
Was heading home from work and the 2006 Hummer H3 shut off while traveling in the middle of traffic was able to cruise in Nuetral until I could stop to start car again started car and yet again I receive a cylinder misfire code which has been repaired on multiple attempts still no success. I am going to end up either crashing or an emergency vehichle will be trying to get by and I can't move because the motor shut down.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11610460August 23, 2024
UNKNOWN OR OTHER
Sunroof leaking creating water to leak into the driver seat, passenger seat, speakers on the door. Water trickling down from the Onstar system while parked and in motion this is a safety hazard. The only resolution that is given from GM is to blow out the hose to the sunroof, that’s not helping this issue is creating mole into the vehicle and once again it’s hazardous when driving As the water raining inside as well as outside of the vehicle. please help not seeing any recalls for this Manufacturing defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11610345August 22, 2024
ENGINE
Engine has very bad rough idle after multiple attempts to repair will get a misfire code often that goes on and comes off engine has rough idle to the point where truck shuts off completely while waiting at traffic light. My safety is at risk as this could happen during driving causing a wreck or during a light change when the emergency vehicles need me to move over and my truck don't run. Vehicle was inspected by multiple mechanic and still has issues. Check engine light comes on at time of motor failure or when rough idle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11556476November 22, 2023
SERVICE BRAKES, POWER TRAIN, WHEELS
Frame Rust Entire frame needs replaced
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543150September 7, 2023
VISIBILITY, STRUCTURE
The contact owns a 2006 Hummer H3. The contact stated while driving 75 MPH, the hood louver detached from the vehicle and cracked the front windshield. The contact stated that the crack obstructed his vision while driving. The contact called the dealer and was informed that the vehicle was previously repaired under NHTSA Campaign Number: 10V179000 (Structure). The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 193,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530020July 2, 2023
SUSPENSION
Complete rust through of frame of my 2006 HUMMER H3.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528537June 23, 2023
POWER TRAIN, SUSPENSION, FUEL/PROPULSION SYSTEM
I was driving the vehicle at a normal rate of speed and stopped at a traffic light getting ready to change. I applied the brakes and when doing so, I heard some horrible noises and felt certain that parts had fallen out of the car. I knew something was immediately seriously wrong. I put the car in park (but it was effort and a grinding noise to put it in park) and stepped out to look under the car. No parts were on the ground, but something was leaking out of the bottom of the car. I got back in and put the car in drive to move it from the roadway knowing I was going to need assistance to tow it somewhere. It grinded trying to put it in any gear and only "revved" the engine when I tried to apply gas to drive it. There was absolutely no warning. The tow driver immediately noticed the drive shaft was disconnected and that was the leaking and thus going nowhere. My mechanic said that both leaf springs snapped off and that caused the drive shaft to sever, hitting the gas tank (or strap) and some other things. My concern is that there is a recall on leaf springs for every year Hummer H3 except mine as well as 1995-2015 Chevrolet, GMC, and Hummer leaf springs. I'm having a very difficult time with how both of mine snapped with no warning tearing all of these components out and it is not involved in the recall. It is the same parts on all of these. Also, my vehicle has spent the majority of its life garaged, never driven in the snow or rain, as I have babied this car. I have a car wash membership too and constantly keep this car meticulous. Hummer said that enough people need to complain, but I would not even have thought to complain had BOTH not snapped off simultaneously finding the recall for all other years while researching the cost. Had only 1 broke, I wouldn't have given it any thought. And Hummer said that they wouldn't even talk to me unless my car was at a GM dealership. This should be included in the recall. This is not pure coincidence. They need to fix it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521053May 8, 2023
SUSPENSION
Frame rot all the way thru from front to back. I am able to poke holes in spots all around it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11457262March 18, 2022
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
The contact's husband owns a 2006 Hummer H3. The contact stated that while she was attempting to park the vehicle, the gear shifter seized in the neutral (N) position as she attempted to place the gear shifter into drive (D). There was no warning light illuminated. The contact was able to park the vehicle however, the gear shifter remained in the neutral (N) position. The dealer nor the manufacturer had yet to notified of the failure. The vehicle had yet to be serviced or diagnosed for the failure. The failure mileage was approximately 180,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11448748January 25, 2022
POWER TRAIN
Plastic shift fork in transfer case broke. Truck locked up turning onto main road from side street was almost hit.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11427188July 30, 2021
SUSPENSION
The contact owns a 2006 Hummer H3. The contact stated while making a turn, he heard a loud abnormal popping sound coming from the rear of the vehicle. The contact stated that while inspecting the vehicle, he noticed that the rear leaf spring had detached from the subframe of the vehicle. The vehicle was not diagnosed or repaired by the dealer or independent mechanic. The manufacturer was made aware of the failure, and informed the contact that the VIN was not under recall. The approximate failure mileage was 140,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11408213April 15, 2021
LATCHES/LOCKS/LINKAGES:HOOD:LATCH
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THE HOOD INADVERTENTLY OPENED AND SHATTERED THE FRONT WINDSHIELD. THE VEHICLE WAS NOT REPAIRED. THE DEALER AND MANUFACTURER WERE NOT MADE AWARE OF THE FAILURE. THE CONTACT WAS RELATING THE FAILURE TO NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE). THE FAILURE MILEAGE WAS UNAVAILABLE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11406158April 2, 2021
SUSPENSION
I PUT IN 4HIGH LOCK FOR SNOW. I LATER PUT TRUCK IN 4 HIGH. IT FEELS AS IF IT'S STUCK IN 4HIGH LICK. I TOOK IT TO REPAIR SHOPS AND WAS TOLD IT'S THE 'PLASTIC FORK' ON THE TRANSFER CASE AND THIS IS A FAULTY PROBLEM. THE FOR WAS LATER CHANGED TO A METAL KNE BECAUSE OF THIS PROBLEM. IT SHOULD HAVE BEEN METAL IN THE FIRST PLACE. THIS IS AN EXPENSIVE COST AND I AM IN GREAT HOPES THAT THE MANUFACTURERS WILL HONOR THIS.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11405726March 31, 2021
AIR BAGS
WE RECENTLY HAD TRANSMISSION COOLANT LINE REPLACED BY THE DEALER ABOUT 2 WEEKS AGO. LAST NIGHT, WHILE MY 17 YEAR OLD SON WAS DRIVING STRAIGHT ON A PAVED ROAD AT APPROXIMATELY 25MPH THE DRIVER AND PASSENGER SIDE AIRBAGS DEPLOYED FOR NO REASON. HE SUSTAINED A BURN ON HIS HAND FROM THE AIR BAG AS WELL AS NECK PAIN. AT THIS POINT HE HAS NOT NEEDED MEDICAL ATTENTION.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0

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