2009 Mercedes SLR McLaren Owner's Manual - Page 100

Controls in detail Locking and unlocking Global locking Press button ‹. With the trunk and all doors closed, all turn signal lamps flash three times. The anti-theft alarm system is armed. Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey so that pressing Œ only unlocks the driver's door, interior storage compartments and the fuel filler flap. Press and hold buttons Œ and ‹ simultaneously for about 6 seconds until battery check lamp 5 flashes twice. The SmartKey will then function as follows: Unlocking driver's door and fuel filler flap Press button Œ once. All turn signal lamps flash once. The anti-theft alarm system is disarmed. Global unlocking Press button Œ twice. All turn signal lamps flash once. The anti-theft alarm system is disarmed. Global locking Press button ‹. With the trunk and all doors closed, all turn signal lamps flash three times. The anti-theft alarm system is armed. Restoring to factory setting Press and hold buttons Œ and ‹ simultaneously for about 6 seconds until battery check lamp 5 ( page 98) flashes twice. Checking the batteries Press button ‹ or Œ. Battery check lamp 5 ( page 98) comes on briefly to indicate that the SmartKey batteries are in order. Unlocking and opening the trunk You can unlock the trunk separately. A minimum height clearance of 5.5 ft (1.66 m) is required to open the trunk lid. Press and hold button Š until the trunk lid unlocks and opens slightly. i If battery check lamp 5 does not come on briefly during check, then the SmartKey batteries are discharged. Replace the batteries ( page 359). You can obtain the required batteries at any authorized Mercedes-Benz Center. i If the batteries are checked within signal range of the vehicle, pressing button ‹ or Œ will lock or unlock the vehicle accordingly. 100