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.
Cruise Control Function Test: Notes
Cruise control function test is used to help determine if cruise control circuits are functioning properly when no trouble codes are present. To activate function test, turn ignition on. Push cruise control switch to SET/COAST position and hold. Set cruise ON-OFF (main) switch to ON position. Ensure CRUISE indicator light comes on and flashes after 3 seconds. Release cruise control switch from SET/COAST position. Activate each switch circuit in order given. Ensure normal function code is displayed by CRUISE indicator light, as each of the following circuits is activated:
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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.