Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Speed Control
The vehicle speed control system consists of the following components:
- Speed control deactivator switch
- PCM
- Speed control switches
The speed control system is controlled by the PCM. The speed control system is designed to maintain a selected vehicle speed between 48 km/h (30 mph) and the maximum limited vehicle speed. The speed control system is controlled by the steering wheel mounted switches (ON, OFF, SET/ACCEL, COAST, RESUME) and the brake pedal switches (stoplamp and speed control deactivator switches). The steering wheel mounted switches are hardwired to the PCM.
The speed control functions include:
- Turning on the speed control system
- Setting and maintaining the desired vehicle speed
- Accelerating the vehicle to a higher speed
- Decelerating to a lower speed
- Tapping-up/tapping-down the vehicle speed
- Deactivating the vehicle speed control system
- Resuming the prior vehicle speed
- Turning off the vehicle speed control system
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.