2004 Hummer H2 Electrical Problems

Odometer Fraud. The contact purchased a 2004 Hummer H2. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 200,000. It was later discovered that the mileage on the Title was 210,000. Additionally, the contact stated she felt pressured to purchase the vehicle, signed the contract, and was unable to recoup the funds.

NHTSA ID

11717047

Incident

Feb 10, 2026

Mileage

210,000 mi

Yesterday I turned off the alarm and unlocked the doors via the keypad. I opened the driver door and my wife opened the passenger rear door and the Hummer H2 started. No key in the ignition and the fob does not have a start button. I then got in the car and inserted the key and turned the key to ON then to off and the vehicle would not shut off. Only after cycling through the gears was I able to shut off the vehicle. I have now disconnected the battery to prevent another unwanted start.

NHTSA ID

11453331

Incident

Feb 20, 2022

WHOLE CLUSTER LIGHTS UP ON CAR DOOR LOCKS DON'T WORK RADIO WON'T GO OFF AIR BAG LIGHTS ON ALL BRAKE LIGHTS ON , THIS WAS GOING DOWN A CITY STREET DRIVING

NHTSA ID

11180590

Incident

Feb 15, 2019

Mileage

122,000 mi

I AM HAVING A PROBLEM WITH MY HUMMER 2004. THE LOCK LIGHT COMES ON AND MY HUMMER WILL NOT START. THIS IS SO HORRIBLE THE PROBLEM STARTED ABOUT 3 MONTHS AGO. EVERYTIME THAT LIGHT COMES ON I HAVE TO WAITE 15TO 25 MINUTES FOR IT TO START AGAIN.

NHTSA ID

11139109

Incident

Jun 27, 2018

Mileage

165,975 mi

AS I WAS DRIVING ON I 5 IN OREGON I EXPERIENCED A COMPLETE FAILURE OF THE ELECTRICAL SYSTEM AND BRAKE SYSTEMS. THE VEHICLE WAS ON CRUISE CONTROL AND WHEN I DISENGAGED IT ALL OF THE SAFETY WARNING LIGHT APPEARED ON THE DASHBOARD. I PRESSED ON THE BRAKES AND THEY WERE A COMPLETE FAILURE ALSO. AT THIS TIME THE DASHBOARD LIGHTS AND CONTROLS WENT OFF AND I LOSS POWER. I WAS ABLE TO GET TO THE SIDE OF THE ROAD WHEN I NOTICED SMOKE COMING FROM UNDER THE HOOD. I GOT MY DAUGHTER OUT OF THE VEHICLE TO A SAFE DISTANCE AND OPENED THE HOOD AND THE MAIN FUSE RELAY PANEL WAS FULLY ENGULFED IN FIRE. I CALLED 911. IN THE APPROX. 5 MIN. THE TIME THE FIRE TRUCK ARRIVED THE TRUCK WAS CONSUMED AND FULLY GUTTED OUT FROM THE FIRE.

NHTSA ID

11022893

Incident

Sep 11, 2017

Mileage

111,644 mi

I HAVE A 2004 HUMMER H2, THE ENTIRE INSTRUMENT PANEL MALFUNCTIONS.. FUEL GAUGE, SPEEDOMETER, OIL GAUGES .KEYLESS ENTRY WILL NOT WORK,ETC. REDUCED ENGINE POWER MESSAGE APPEARS AND VEHICLE AUTOMATICALLY SLOWLY REDUCING SPEED TO 15 MILES PER HR WHILE DRIVING AT HIGH SPEED. AIR BAG LIGHT WILL NOT SHUT OFF. THESE ISSUES ARE A SAFETY HAZARD AND I WOULD APPRECIATE ASSITANCE AND RESULUTION AS SOON AS POSSIBLE. THIS TRUCK HAS LESS THAN 75,000 MILES AND HAS BEEN WELL MAINTAINED. .

NHTSA ID

10915992

Incident

Sep 19, 2016

I FEEL THAT THIS KEY PROBLEM FALLING OUT OF THE IGNITION, KEY WILL NOT TURN ON OR OFF MAKING IT HARD TO CONTROL WHEN THE KEY IS IN THE IGNITION AND CAUSING IT NOT TO START. I HAD THIS SAME PROBLEM ON A 2003 ISUZU ASCENDER. ALSO THE "DRIVER INFORMATION CENTER" HAS QUIT WORKING RIGHT WHICH CONTROLS A LOT OF THINGS ON THE VEHICLE. I THINK IT IS A DEFECTIVE SWITCH FROM GM WHO ALSO BUILT MY 2003 ISUZU. *TR

NHTSA ID

10649544

Incident

Mar 1, 2014

Mileage

113,784 mi

1. VOLTAGE METER ERRATIC 2. WINDSHIELD WIPERS STOPPED WORKING, WIPERS STOPPED AND REMAIN IN THE MIDDLE OF THE WINDSHIELD. 3. DASHBOARD INSTRUMENT PANEL REMAINED ON WITH BATTERY LIGHT AND RADIO AFTER SWITCHING OFF AND LOCKING VEHICLE. IT WAS NECESSARY TO DISCONNECT THE BATTERY TO DISABLE THIS CONDITION. ON MORNING OF 5/17/2012, WE RECONNECTED THE BATTERY AND VOLTAGE METER AND INSTRUMENT PANEL WAS NORMAL. WINDSHIELD WIPERS ARE STILL INOPERABLE. *TR

NHTSA ID

10458867

Incident

May 11, 2012

Mileage

98,720 mi

TL* THE CONTACT OWNS A 2004 HUMMER H2. THE CONTACT STATED THAT THE SPEEDOMETER FAILED AS HE PARKED THE VEHICLE. CONTACT NOTICED THAT THE SPEEDOMETER PROVIDED A READING OF 80 MPH INSTEAD OF 0. ON OCCASIONS, THE SPEEDOMETER WOULD RETURN TO NORMAL BUT WOULD MAINLY READ BETWEEN 80-100 MPH ERRONEOUSLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY ADVISED HIM THAT A MOTOR IN THE SPEEDOMETER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED NOR WAS THE MANUFACTURER CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 43,000. THE VIN WAS UNAVAILABLE.

NHTSA ID

10454053

Incident

Apr 2, 2012

Mileage

43,000 mi

I HAVE A 2004 HUMMER H2, THE ENTIRE INSTRUMENT PANEL MALFUNCTIONS. THE FUEL GAUGE, SPEEDOMETER, OIL GAUGES AND ALL. YOU HAVE NO IDEA HOW MUCH GAS YOU HAVE AND/ OR HOW FAST TRAVELING ETC.. THE VEHICLE HAS LESS THAN 70,000 MILES ON IT. *TR

NHTSA ID

10398505

Incident

Sep 5, 2010

Mileage

66,000 mi

2004 H2 HUMMER, SPEEDOMETER MALFUNCTION, REGISTERS 0 (ZERO) OR GROSSLY INCORRECT MILES/HOUR, PLEASE TELL ME THIS HAS TO BE A MANUFACTURER DEFECT ON THIS TYPE VEHICLE AT $40,000 PRICE TAG, WAS PULLED OVER BY OFFICER AND GIVEN VERBAL WARNING TO GET REPAIRED. *TR

NHTSA ID

10312374

Incident

Feb 10, 2010

I OWN A 2004 HUMMER H2. IT CURRENTLY HAS 50K MILES ON IT AND HAS BEEN GARAGE KEPT AND WELL MAINTAINED SINCE I PURCHASED IT. RECENTLY, WHILE DRIVING I NOTED THAT MY SPEEDOMETER SEEMED TO BE INACCURATE. I WAS ON A MAJOR HIGHWAY, YET CARS WERE FLYING AROUND ME AND CUTTING ME OFF. I LOOKED AT MY SPEEDOMETER AGAIN AND IT READ "65" SO I CONTINUED ABOUT MY BUSINESS WHILE OTHER MOTORISTS WERE STILL PASSING ME BY AND CUTTING ME OFF. WHEN I GOT HOME AND PULLED THE H2 INTO THE GARAGE, I REALIZED THE SPEEDOMETER WAS STILL READING "65" AND I WAS PARKED. I CONTACTED HUMMER AND GM WHO BOTH INFORMED ME IT IS THE STEPPER MOTOR AND THAT IT NEEDS TO BE REPLACED. THEY ALSO STATED THAT IT IS A PROBLEM IN 2003-2004 GM PRODUCTS AND THAT THERE IS A RECALL BUT NOT FOR THE HUMMER. I ASKED WHY ALL THE OTHER GM PRODUCTS WERE COVERED AND NOT MINE AND WAS TOLD THAT THEY JUST DON'T FIX ENOUGH OF THEM SO THERE IS NO RECALL. I EXPRESSED MY CONCERN THAT THIS IS NOT A NORMAL WEAR AND TEAR ITEM AND THAT THIS IS A SAFETY ISSUE. GM OBVIOUSLY FELT IT WAS ENOUGH OF A CONCERN TO RECALL ITS OTHER GMC SUV'S THAT HAVE THE SAME PROBLEM. THE SERVICE MANAGER AT HUMMER TOLD ME THAT HE FIXES ABOUT ONE A WEEK AT THE COST OF $500-$700.00. IF THAT MANY HUMMERS ARE BEING REPAIRED, WHY THE PREJUDICE AGAINST THIS GM PRODUCT FOR THE RECALL. I GUESS THEY FIGURE IF YOU OWN A HUMMER, THEN YOU HAVE THE MONEY TO PAY FOR IT TO GET REPAIRED. I BEG TO DIFFER. THIS IS A MAJOR SAFETY CONCERN AND IN DOING MY RESEARCH ON OTHER HUMMER H2'S FROM 2003-2004, IT IS A BIG PROBLEM WITH THE STEEPER MOTOR. THE SERVICE MANAGER ACTUALLY RECOMMENDED TO ME THAT I CAN "STILL DRIVE IT". I HAVE 4 CHILDREN AND DRIVING IT UNDER THESE CONDITIONS IS NOT ACCEPTABLE, NOR IS RISKING OUR LIVES, BUT THEN AGAIN, I AM CERTAIN IF SOMEONE DIED AS A RESULT OF THIS PROBLEM, GM WOULD ADDRESS IT AND RECALL THE DEFECT. THE GM PRODUCT LINE THAT HAS BEEN RECALLED USES THE SAME EXACT PART THAT THE HUMMER H2 DOES SO WHY HAS THIS NOT BEEN ADDRESSED! *TR

NHTSA ID

10299968

Incident

Jan 10, 2010

Mileage

50,000 mi

2004 HUMMER H2 SPEEDOMETER QUIT FUNCTIONING COMPLETELY THE STARTED WORKING AGAIN BUT VERY ERRATICALLY, READING IMPROPER SPEEDS AT ALL SPEEDS INCLUDING REGISTERING 60 MPH WHILE AT A STOP. PROBLEM HAS BEEN OCCURRING SINCE 10/15/06. NOT A SAFE SITUATION. *NM

NHTSA ID

10172432

Incident

Oct 15, 2006

Mileage

40,370 mi

WHILE DRIVING 10 MPH VEHICLE STALLED WITHOUT WARNING. DRIVER TRIED TO RESTART THE VEHICLE AND WAS ABLE TO DO SO. VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION, AND MECHANIC DETERMINED THAT THE IGNITION SWITCH NEEDED TO BE REPLACED, AND REPLACED IT. *AK

NHTSA ID

10109105

Incident

Dec 5, 2004

Mileage

11,013 mi