Two problems related to cruise control have been reported for the 2003 GMC Sierra. The most recently reported issues are listed below.
When driving the vehicle with the cruise control on the vehicle surged forward then decelerated back to its original speed after 3 to 4 seconds. The consumer had made contact with the dealership. When the vehicle was empty, then it would work as it should. If a trailer was hooked with 400 lbs, the cruise control would go from 1500 rpm to 45 or 4600 rpm's for about 3 to 4 seconds, then drop down to 2600 rpm or 3500 rpm's depending on the hill the driver was going up and would stay that rpm until the driver was at the top. Three dealers suggested that they couldn't remedy the problem.
The cruise control was unpredictable. While driving on cruise control the vehicle will shift gears and drive rough. The vehicle was taken to the dealer , who stated this I was normal.
| Vehicle Speed Control problems | |
| Cruise Control problems | |
| Accelerator Pedal problems |