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.
System Operation Check
Confirm the following system operation:
- With ignition switch in LOCK position, gear selector should be locked in Park.
- With gear selector in Park, ignition switch should be allowed movement from LOCK position to any other position, and then back to LOCK position. Ignition key should be removable while in LOCK position.
- With ignition switch in ON position, gear selector should be allowed movement from Park. Models equipped with BTSI solenoid require that brake pedal be depressed for this operation.
- With ignition switch in ON position and gear selector in any position other than Park, ignition key is non-removable. Ignition key is removable only when gear selector is returned to Park.
If shift interlock system operates as specified, system is functioning properly at this time. If system does not operate as specified, diagnose by symptom. See SYMPTOM TESTS .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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