Multiple brake line faulures due to rust which also necessitated ABS valve body replacement. Complete brake line replacement.
The worst 2003 Am General Hummer problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes3
- Electrical3
- Visibility3
- Acceleration1
- Body1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes3
- Electrical3
- Visibility3
- Acceleration1
- Body1
- Suspension1
- Transmission1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2003 Am General Hummer 18
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Misfire at idle cold and possible P0171 and or P0174
- Underbody squeak noise
- Lack of steering assist or shudder during parking lot type maneuvers
- Radio cd skips/ejects or clock resets to 12:00
- Lack of steering assist when stopped or during parking lot type maneuvers
- Misfire dtcs and catalytic converter damage due to installation of alarm systems
- Information regarding engine crankcase flush for 2003 and prior gm cars and trucks and isuzu light and...
- Information regarding new pag oil released for certain vehicles including all 2003 passenger cars and trucks
- Information on the power door locks on the 2003 hummer H2
- Subject regarding engine identification information for 2003 and prior passenger cars and trucks and 2003...
What 2003 Am General Hummer owners say
Most recent owner complaints, unedited.
I was driving with my family to a restaurant one evening and went to turn the wipers on to clean my windshield in front and the back ones but when I tried to turn them off they would not turn off had to pull off the road to pull the fuse. After couple of months it stop doing it so I installed the fuse back. Next incident happen when my wife was driving the truck to work and the exact thing happen to her. You could here a loud noise coming from under the hood even when the truck was turned off.
Speedometer, oil temp guage, and alternator gauge stopped working.
While I was driving, my hummer h2 2003 windshield wiper motor malfunctioned and caught on fire. This caused a fire in my engine well.
While I was driving down the road at approximately 55 MPH the windshield wipers stopped during a rain shower, while in traffic. I immediately had to pull off the road as I had problems seeing oncoming traffic.. Then the wipers started to move erratically and then started operating as fast as they could, with no control by the windshield wiper knob. After the rain stopped the wipers would not turn off. I had to remove the fuse to stop them. When I got home, I replaced the fuse but the wipers would not operate then. I took the vehicle to a repair shop. They told me I had wiper motor problems and that a recall had been instituted for the same problem by hummer but my VIN was not involved in the recall. I believe my problem is an extension of the recall.
I was driving on a residential street in washington, d.c. In my 2003 hummer h2 when I noticed after a briefly trying to brake for a pedestrian that my brake pedal was not as tight as usual. I continued to drive believing since no warning lights then there's no issue. I came to another stop and realized their is something wrong my brake pedal was very loose and almost to the floor with minimal stopping ability lucky I was now at my home I coasted to my home by now the brakes have blown completely I had to use the emergency brake to stop the truck. Thank god I survived. Upon inspection of my rear brake hoses it seems the left blew completely causing the serious issue. The warning light never came on. If I was going at a high rate of speed their would have been no question 2 or more fatalities.
While driving 10 MPH the ball joints and axle sheared off. This caused consumer's vehicle to crash into another parked vehicle.
Child safety seat failure, after locking the black lock child is able to loose it without mashing the red button. *bf
The consequences indicated in the brake valve recall 04v045000 occurred while driving. Dealership inspected the vehicle and indicated they couldn't find anything wrong and the VIN number was not included in the recall. *ak the consumers husband experienced brake and steering failure. He was unable to steer the truck and found it necessary to use the emergency brake to stop the vehicle as the brakes would not work. The vehicle continued to run while the brake and steering failure occurred. *sc
The tubular side step that was located beneath both front doors and was used to get up into big trucks, was extremely dangerous in rain or snow. Black ice formed on it and the consumer slipped and fell backwards onto the ground and sustained a back injury. *ak *sc
Compare the 2003 Am General Hummer
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Questions about the 2003 Am General Hummer
Is the 2003 Am General Hummer reliable?
Owners have filed 12 complaints about the 2003 Am General Hummer, close to a typical Hummer model year.
What is the 2003 Am General Hummer year score?
The 2003 Am General Hummer scores 75 out of 100 (average). The score compares it with the other model years of the Am General Hummer: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2003 Am General Hummer?
Brakes, with 3 complaints. Next is electrical (3).
How many recalls does the 2003 Am General Hummer have?
No recalls on record.
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