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.
Programming ignition keys
Ignition keys can be added or erased. A maximum of 6 key IDs can be programmed into the central electronic module (CEM). When programming a key, the key is identified to the control module with a code that is stored in the control module memory.
When a key is programmed for the vehicle, the remote control code is also entered if this is to be linked to the vehicle. However, the remote control code has nothing to do with the immobilizer system. For further information, see VIDA Design and Function, central locking. If a new key is added to a vehicle, the transponder in the key for this vehicle is locked and consequently cannot be programmed for another vehicle.
The erase function is used when the customer wishes to prevent one or more keys from being used to start the vehicle. The keys may have been stolen and could be traced back to the vehicle.
Ignition keys and remote controls are integrated. Therefore the code for the remote control and the transponder must be available when programming. These are programmed at the same time. This means that a key that has been erased can be programmed back into the same vehicle if both these keys are available. The codes can be found on the packaging in which the keys are delivered. If the codes are not available, a new ignition key must be ordered.
Keys are programmed via VIDA vehicle communication.
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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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