One problem related to automatic transmission control module has been reported for the 2003 Chevrolet Monte Carlo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Monte Carlo based on all problems reported for the 2003 Monte Carlo.
Car began having a hard shift in all gears at 41,000 miles, 5,000 miles out of 3 year/36,000 bumper to bumper warranty. The high mileage on my vehicle is due to extensive highway travel to and from work. The problem diagnosed was a leaking transmission coolant line, defective torque convertor clutch sylenoid, and a defective pressure control sylenoid. It was also noted that upon manufacturing a wire to the transmission was crimped. All parts had to be replaced.
| Automatic Transmission problems | |
| Automatic Transmission Torque Converter problems | |
| Power Train Driveline problems | |
| Power Train problems | |
| Axle Shaft Seal problems | |
| Automatic Transmission Control Module problems |