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.
Description, Operation, And Checking Function
Symptom and function description:
The following conditions must be met in order for the Central electronic module (CEM) to permit locking and unlocking using the remote key:
- The battery in the remote key must have sufficient voltage. If the battery starts to deteriorate, the transmission strength is reduced.
- The remote key must be within a radius of 20 m from the vehicle's Remote Receiver Module (RRX).
- All doors should be shut and the car should be locked.
How many doors and hoods are to be locked and unlocked, when using the remote key and the exterior flashing indication, can be programmed on the Infotainment control module (ICM).
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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