NHTSA — Power Train Problems

10.0

really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
44,789 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Hummer H3 drivetrain problems

drivetrain problem

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2006 Hummer H3 Owner Comments

problem #9

Nov 222023

H3

  • miles

A D V E R T I S E M E N T S

Frame Rust Entire frame needs replaced

- Princeton, WV, USA

problem #8

Jun 202023

H3

  • miles
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.

- Dayton, OH, USA

problem #7

Jan 012022

H3

  • miles
Plastic shift fork in transfer case broke. Truck locked up turning onto main road from side street was almost hit.

- Springfield , MA, USA

problem #6

Feb 232019

H3

  • 81,000 miles

A D V E R T I S E M E N T S

Electrical problems, either the vehicle wil no start due to the anti-theft system or I will lose all power when driving.

- Kenosha, WI, USA

problem #5

Aug 082016

H3

  • miles
My vehicle will not start followed by a 10 minute lockout period. This happens every few days. Once the vehicle sits for 10 minuted it will start. This happens regardless of wether conditions, will persist intermittently anytime of day; does not have anything to due with key fob or how I enter the vehicle.

- Calumet Park, IL, USA

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problem #4

Jul 022013

H3 6-cyl

  • 66,104 miles
While driving at 45mph all systems shut off. No power steering nothing. The car would not restart. This happened multiple times with out warning.

- Seminole , FL, USA

problem #3

Mar 042014

H3

  • 106,000 miles

A D V E R T I S E M E N T S

The contact owns 2006 Hummer H3. The contact stated that while driving 10 mph, the rear lift spring failed and caused the drive shaft to also fail. Additionally, the emergency cable caused the wheels to seize. The vehicle was towed to the contacts home and was neither inspected nor repaired. The manufacture was not notified of the failure. The approximate failure mileage was 106,000. The VIN was not available.

- Bristol, CT, USA

problem #2

Jun 182012

H3

  • 60,000 miles
The contact owns a 2006 Hummer H3. While parked with the brake pedal depressed, the contact placed the gear shifter into drive but the vehicle would not accelerate. The vehicle was taken to the dealer for diagnostic testing. The technician advised that the plastic fork in the power train transfer case would have to be replaced with an upgraded version. The vehicle was repaired. The approximate failure mileage was 60,000.

- Reno, NV, USA

problem #1

Jun 302011

H3

  • 90,000 miles
The contact owns a 2006 Hummer H3. While the vehicle was parked the contact noticed the HVAC unit failed. The vehicle was taken to the dealer for diagnostic testing and the technicians stated the HVAC blower motor over heated and melted the resistor. The technicians stated the blower motor, relay and the wiring harness needed to be replaced. The vehicle was not repaired. While driving the front drivers side mirror also began to vibrate and when depressing the accelerator pedal the vehicle would decelerate. The technician stated that the arm bracket that holds the front drivers side door mirror was broken and needed to be replaced. The vehicle was taken to the dealer where the electric pedal was replaced. The vehicle HVAC unit and the drivers side mirror were not repaired. The approximate failure mileage was 90,000.

- Oklahoma City, OK, USA

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