Unlocking Using Key

Applies to the S40: 

The driver door can be unlocked and locked using the key blade that normally is inserted in the remote control. It works as a back-up solution if there should be a problem with the system. The other doors can then be unlocked with the interior central locking buttons after the key has been inserted in the ignition. The lock cylinder on the driver door is covered by a casing. This casing has to be removed first for the lock cylinder to be visible. This is done by inserting the mechanical key through a hole on the underside of the casing and pulling outward.