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.
Column Shift Models
The shift interlock system consists of an electro-magnetic solenoid mounted on upper steering column. Brake Transmission Shift Interlock (BTSI) solenoid is energized by brake switch, completing ground circuit when brake pedal is depressed. With ignition switch in LOCK or ACC positions, the gearshift lever is locked in Park. With ignition switch in OFF positions, the gearshift lever is unlocked and allows gearshift lever to move to any position. This enables vehicle to moved in the event the battery is dead or removed. With ignition switch in ON/RUN position, gearshift lever is released from Park when brake pedal is depressed. The ignition interlock system also prevents the ignition switch from being returned to LOCK or ACC positions unless gearshift lever is returned to Park.
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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