Mersedes SUV Manuals

Theft deterrent locking systems

Mercedes-Benz M-Class / Mercedes-Benz M-Class Owners Manual / Safety / Theft deterrent locking systems

Immobilizer

The immobilizer prevents your vehicle from being started without the correct SmartKey.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.

- To activate with the SmartKey: remove the SmartKey from the ignition lock.

- To activate with KEYLESS-GO: switch the ignition off and open the driver's door.

- To deactivate: switch on the ignition.

deactivated The immobilizer is always
deactivated when you start the engine.

In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty.

Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).

ATA (Anti-Theft Alarm system)

A visual and audible alarm is triggered if the alarm system is armed and you open: - a door
- the vehicle with the mechanical key - the tailgate
- the hood

The alarm is not switched off, even if you close the open door that has triggered it, for example.

than 30 If the alarm stays on for more
than 30 seconds, the emergency call system mbrace (USA only) or TELE AID (Canada only) initiates a call to the Customer Assistance Center automatically. The emergency call system initiates the call provided that:
- you have subscribed to the mbrace/TELE AID service.

- the mbrace/TELE AID service has been activated properly.

- the required mobile phone, power supply and GPS are available.

- To arm: lock the vehicle with the SmartKey


- To arm: lock the vehicle with the SmartKey or KEYLESS-GO.

Indicator lamp 1 flashes. The alarm system is armed after approximately 15 seconds.

- To deactivate: unlock the vehicle with the SmartKey or KEYLESS-GO.

- To stop the alarm using the SmartKey: insert the SmartKey into the ignition lock.

The alarm is switched off.

or
- Press the button on the or
SmartKey. button on the
SmartKey.

The alarm is switched off.

- To stop the alarm using KEYLESS-GO: grasp the outside door handle. The SmartKey must be outside the vehicle.

The alarm is switched off.

or
- Press the Start/Stop button on the dashboard. The SmartKey must be inside the vehicle.

The alarm is switched off.

    See also:

    Towing and tow-starting
    Important safety notes WARNING If you tow the vehicle, you must use a rigid towing bar if: - the engine is not running. - there is a brake system malfunction. - there is a malfunction in the po ...

    Exterior lighting
    Important safety notes For reasons of safety, Mercedes-Benz recommends that you drive with the lights switched on even during the daytime. In some countries, operation of the headlamps varies due ...

    Changing the settings of the locking system
    You can change the setting of the locking system in such a way that only the driver's door and the fuel filler flap are unlocked. This is useful if you frequently travel on your own. If the sett ...

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