2006 Hummer H3 Powertrain (other) Problems

Frame Rust Entire frame needs replaced

NHTSA ID

11556476

Incident

Nov 22, 2023

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.

NHTSA ID

11528537

Incident

Jun 20, 2023

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

NHTSA ID

11448748

Incident

Jan 1, 2022

ELECTRICAL PROBLEMS, EITHER THE VEHICLE WIL NO START DUE TO THE ANTI-THEFT SYSTEM OR I WILL LOSE ALL POWER WHEN DRIVING.

NHTSA ID

11183375

Incident

Feb 23, 2019

Mileage

81,000 mi

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.

NHTSA ID

10896772

Incident

Aug 8, 2016

WHILE DRIVING AT 45MPH ALL SYSTEMS SHUT OFF. NO POWER STEERING NOTHING. THE CAR WOULD NOT RESTART. THIS HAPPENED MULTIPLE TIMES WITH OUT WARNING. *TR

NHTSA ID

10576491

Incident

Jul 2, 2013

Mileage

66,104 mi

TL* 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. *TR

NHTSA ID

10568175

Incident

Mar 4, 2014

Mileage

106,000 mi

TL* 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.

NHTSA ID

10475818

Incident

Jun 18, 2012

Mileage

60,000 mi

TL* 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.

NHTSA ID

10410936

Incident

Jun 30, 2011

Mileage

90,000 mi

I HAVE A 2006 HUMMER H3 WITH APP. 79,000 MILES ON IT.. I WAS DRIVING TO WORK ON THE HIGHWAY AND HALFWAY THERE, I STARTED TO GET A REALLY BAD VIBRATION AND LOUD HUMMING NOISE COMING FROM THE DRIVELINE. IT STARTS AT ABOUT 40 MPH AND COMES AND GOES EVERY FEW SECONDS. ITS WORSE WHEN I HIT THE GAS PEDAL.. THE UNIVERSAL JOINTS HAVE ALREADY BEEN REPLACED DUE TO CRACKED UNIVERSAL JOINTS FOR SOME ODD REASON.. THE TOP END OF THE ENGINE HAD JUST BEEN REBUILT 2 WEEKS AGO AS WELL DUE TO STICKING EXHAUST VALVES. THIS TRUCK IS BABIED AND HAS NEVER BEEN OFF- ROAD. MAINLY HIGHWAY MILES ONLY.. I JUST HAD IT ALIGNED. ALL THE FLUID LEVELS ARE CORRECT. ALL THE DRIVESHAFTS ARE TIGHT AND NOTHING SEEMS TO BE LOOSE.. NO MODIFICATIONS HAVE BEEN DONE TO IT.. VERY UNSAFE TO DRIVE BECAUSE SOMETHING COULD LOCK UP AND MAKE YOU LOSE CONTROL OF VEHICLE.. THIS WILL BE THE 6TH TIME I'VE HAD IT IN THE SHOP FOR PROBLEMS... *TR

NHTSA ID

10369837

Incident

Dec 7, 2010

Mileage

79,021 mi

TL* THE CONTACT OWNED A 2006 HUMMER H3. WHILE DRIVING 15-20 MPH THE FRONT DRIVE SHAFT BROKE. HE COASTED TO THE SIDE OF THE ROAD. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. HE STATED THE DEALER ADVISED HIM THAT THE FRONT DRIVE SHAFT NEEDED REPLACING. THE DEALER REFUSED TO REPAIR THE VEHICLE BECAUSE OF THE NUMBER OF TIMES THE VEHICLE HAD COME IN FOR THIS FAILURE. THE CONTACT STATED HE NO LONGER OWNS THE VEHICLE BUT FEELS ITS UNSAFE TO BE ON THE ROAD. THE FAILURE MILEAGE WAS 21,000 THE CURRENT MILEAGE WAS UNKNOWN.

NHTSA ID

10355790

Incident

Oct 12, 2009

Mileage

21,000 mi

TL*THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH WITH THE "FOUR WHEEL HIGH LOCK" IN ACTIVATION. WHEN APPROACHING A TURN, THE FRONT WHEELS BEGAN TO SQUEAL. THE READING ON THE INSTRUMENT PANEL DISPLAYED THE FOUR WHEEL HIGH RANGE AND NO INDICATION OF THE LOCK BEING ENGAGED. THE FAILURE OCCURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE FAILURE WILL BE DIAGNOSED BY AN AUTHORIZED DEALER. THE FAILURE MILEAGE WAS 90,000. THE VIN WAS UNAVAILABLE.

NHTSA ID

10344075

Incident

Jul 13, 2010

Mileage

90,000 mi

I HAVE TWO 2006 H3 HUMMERS BOTH WITH THE 5 SPEED MANUAL TRANSMISSION. UPON ACCELERATION FROM A STOPPED POSITION IN FIRST GEAR, DEPRESSING THE CLUTCH FOR THE SHIFT INTO 2ND GEAR THE ENGINE RPMS REVS TO ABOUT 4000 AND STAYS THERE. SHIFTING INTO 2ND GEAR & RELEASING THE CLUTCH THE RPMS DROP BACK DOWN. ACCELERATING TO ABOUT 3000-3500 RPMS, DEPRESSING THE CLUTCH, AGAIN THE RPMS CLIMB TO AROUND 4000 AND STAYS THERE. THE SAME THING OCCURS DURING UP SHIFTS ... THIS HAS HAPPENED NO LESS THAN 7 TIMES ON ONE H3 AND 5 TIMES ON THE OTHER H3. THE HUMMER DEALER CAN FIND NO STORED CODES, AND CAN NOT DUPLICATE THIS. GM HAS BEEN NOTIFIED, BUT NOTHING HAS BEEN DONE TO REPAIR THIS PROBLEM BECAUSE THE DEALER CAN NOT SUPPLY DEFECT CODES. THIS HAS BEEN GOING ON SINCE AUGUST '06 WITH NO END IN SIGHT. I HAVE ASKED THE ECU BE EITHER REFLASHED OR REPLACED AND WAS TOLD IT WAS TOO COSTLY TO JUST PUT PARTS IN WITHOUT ANY CODES. I BELIEVE THE SOFTWARE COULD BE CORRUPTED. AND IS NOT AWARE ANYTHING IS WRONG. THUS THERE ARE NO CODES. *JB

NHTSA ID

10183117

Incident

Feb 19, 2007

Mileage

2,750 mi

DT*: THE CONTACT STATED WHILE DRIVING AT NO PARTICULAR SPEED ON THE HIGHWAY, THE VEHICLE MYSTERIOUSLY SUCKED UP A GARAGE BAG. THE BAG WRAPPED AROUND THE DRIVESHAFT. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHICH DETERMINED THE DRIVESHAFT NEEDED REPLACED.

NHTSA ID

10154422

Incident

Mar 28, 2006

Mileage

7,000 mi

DT: THE CONTACT STATES WHILE DRIVING THE FRONT DIFFERENTIAL RING GEAR FELL APART. THE MANUFACTURER WAS CONTACTED. THEY REPAIRED THE VEHICLE AND HAVE NOW VOIDED THE VEHICLE WARRANTY. *JB

NHTSA ID

10142704

Incident

Aug 25, 2005

Mileage

2,150 mi