There is a problem with the interaction between the cruise control and transmission. When travelling on the highway at 70 MPH and going over a small rise (overpass), sometimes the transmission does not unlock the torque converter for necessary power to maintain vehicle speed. When this happens, the transmission directly downshifts (without first unlocking the torque converter). This causes a violent surge in vehicle speed over the set cruise control speed, and then a drop of the throttle and upshift, allowing the vehicle to slow again. These two lurches might cause some drivers to loose control of the vehicle. When driving the vehicle over the same course without the cruise control, but maintaining the same speed manually with necessary throttle movements, the transmission properly unlocks the torque converter and the problem does not occur. Have worked with the dealer and gm on this, and it seems that new software is needed in the vehicle control systems. They will not give any time frame to fix the vehicle.
The worst 2003 Am General H2 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Acceleration1
- Visibility1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration1
- Visibility1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2003 Am General H2 1
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2003 Am General H2 owners say
Most recent owner complaints, unedited.
Drivers side mirror head is too loose on swivel base, so it vibrates constantly in the wind over approx 40 MPH. This condition is since new. This makes the mirror unusable as the image is blurred beyond recognition. My dealer replaced one mirror - same problem. My dealer demonstrated to my satisfaction that all of the vehicles have the same defect. This affects my safety while driving as I cannot properly tell if there is traffic approaching on my left.
Compare the 2003 Am General H2
Other model years
2003
Questions about the 2003 Am General H2
Is the 2003 Am General H2 reliable?
Owners have filed 2 complaints about the 2003 Am General H2, close to a typical H2 model year.
What is the most common problem with the 2003 Am General H2?
Acceleration and speed control, with 1 complaint. Next is visibility (1).
How many recalls does the 2003 Am General H2 have?
No recalls on record.
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