2010 Mercedes GLK-Class Owner's Manual - Page 301

Unlocking/locking manually G Warning! Unlocking the driver's door 299 If the 45 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat, do not transport a child on the front passenger seat until the system has been repaired. Unlocking/locking manually If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver's door using the mechanical key. The anti-theft alarm system will trigger when you Runlock the driver's door with the mechanical key and the driver's door Ropen To cancel the alarm, insert the SmartKey into the starter switch. Locking the vehicle If you cannot lock the vehicle with the SmartKey or with KEYLESS-GO, lock it as follows: X Open the driver's door. X Close the front passenger door, the rear doors, and the tailgate. X Press the central locking switch (Y page 71). The locking knobs of the front passenger door and the rear doors move down. X If the vehicle battery is disconnected or drained: Press down the locking knobs on the front passenger door and the rear doors. X Exit the vehicle. X Close the driver's door. Removing the mechanical key X Move locking tab : in the direction of arrow. X Slide mechanical key ; out of the housing. Z Practical hints Unlocking the vehicle X Insert mechanical key ; into the driver's door lock. X Turn mechanical key ; counterclockwise to position 1. X Pull the door handle to open the driver's door. X Turn mechanical key ; back and remove it from the driver's door lock.