Table 1 shows two common vehicle speed control related problems of the 1999 Chevrolet Prizm.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems | |
| Cruise Control problems |
Vehicle surges or slows down at 45 mph on its own, unable to determine defect.
The contact owns a 1999 Chevrolet Prizm. While driving 65 mph with the cruise control activated, the engine revved and the vehicle suddenly accelerated to 80 mph. The contact had to depress the brake pedal several times to slow down the vehicle. Over a year ago, the ignition wiring harness caught fire which spread to the alternator. The ignition, wiring harness, and alternator were replaced. The vehicle was towed to the dealer for diagnostic testing. The failure mileage was 78,000.