2010 Mercedes GLK-Class Owner's Manual - Page 302

300 Unlocking/locking manually X Remove mechanical key ; from the SmartKey (Y page 299). X Insert mechanical key ; into the driver's door lock. X Turn mechanical key ; clockwise to position 1. The vehicle is locked. X Turn mechanical key ; back and remove it from the driver's door lock. X X Practical hints Remove the mechanical key from the SmartKey (Y page 299). X Insert mechanical key ; into the opening in trim :. X Press mechanical key ; in direction of the arrow and open the tailgate. Check whether the doors and the tailgate are locked. ! The tailgate swings up and beyond the rear bumper when opening. Therefore, make sure there is sufficient clearance above and behind the vehicle. X Open the tailgate. i This procedure does not arm the antitheft alarm system, nor does it lock the fuel filler flap. Unlocking and opening the tailgate If the tailgate can no longer be unlocked and opened using button F on the SmartKey or the KEYLESS-GO function, use the emergency release to unlock and open the tailgate. The emergency release is located on the inside of the tailgate. A minimum height clearance of 6.9 ft (2.10 m) is required to open the tailgate. i If the vehicle has previously been locked from the outside using the SmartKey or KEYLESS-GO, opening the tailgate from the inside using the emergency release will trigger the anti-theft alarm system. To cancel the alarm, do one of the following: RInsert the SmartKey into the starter switch. RPress button % or & on the SmartKey. In vehicles with KEYLESS-GO: RPull an outside door handle. The SmartKey must be within 3 ft (1 m) of the vehicle. RPress the KEYLESS-GO start/stop button. The SmartKey must be inside the vehicle.