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.
Smart Door Lock Function
If the driver gets out of the vehicle carrying the electrical key and pushes the lock SW on the door handle, then when all doors are being locked, the certification ECU sends a signal both inside and outside the passenger room to confirm the location of the electrical key. If the key is confirmed to be outside the vehicle and not inside it, then the doors will be locked. Additionally the door ajar alarm will sound whenever a door is not shut properly when the lock SW on one of the door handles is pushed.
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.