2007 Mercedes R-Class Owner's Manual - Page 121

Controls in detail Locking and unlocking Global unlocking Grasp any outside door handle other than the driver's outside door handle. All turn signal lamps flash once. The locking knobs in the doors move up. The anti-theft alarm system is disarmed. Global locking Press the lock button on an outside door handle ( page 69). All turn signal lamps flash three times. The locking knobs in the doors move down. The anti-theft alarm system is armed. Restoring to factory setting Press and hold buttons Œ and ‹ simultaneously for about 5 seconds until battery check lamp 5 ( page 116) flashes twice. Checking the batteries Press button ‹ or Œ. Battery check lamp 5 ( page 116) comes on briefly to indicate that the SmartKey with KEYLESS-GO batteries are in order. ! If you can no longer lock or unlock the vehicle with the SmartKey with KEYLESS-GO, the batteries in the SmartKey with KEYLESS-GO are discharged, the SmartKey with KEYLESS-GO is malfunctioning, or the vehicle battery is drained. Check the batteries in the SmartKey with KEYLESS-GO ( page 120) and replace them if necessary ( page 483). Use the mechanical key to unlock the drivers' door ( page 478). Lock the vehicle as described in the "Practical hints" section ( page 479). Have the vehicle battery and the vehicle battery connections checked ( page 506). If the SmartKey with KEYLESS-GO is malfunctioning, contact Roadside Assistance or an authorized Mercedes-Benz Light Truck Center. i If battery check lamp 5 ( page 116) does not come on briefly during check, the SmartKey with KEYLESS-GO batteries are discharged. Replace the batteries ( page 483). You can obtain the required batteries at any authorized Mercedes-Benz Light Truck Center. i If the batteries are checked within signal range of the vehicle, pressing the button ‹ or Œ will lock or unlock the vehicle accordingly. 120