There are two types of shiftlocks: mechanical and automatic.
Mechanical shiftlock
The gear selector can be moved back and forth between N and D. The other positions have a shiftlock that is operated using the lock button on the gear selector.
Press and hold the shiftlock button and move the gear selector forward or backward between P, R, N and D.
Automatic shiftlock
The automatic shiftlock has a separate safety system.
From Park – P or Neutral – N
To move the gear selector from P or N to another gear selector position, the brake pedal must be depressed and the ignition in mode II. For vehicles with the small gear selector, the engine must be running.
If the gear selector is in N and the vehicle has been stationary for at least 3 seconds (with or without the engine running), the gear selector will be locked in that position.
Messages in the instrument panel
If the gear selector is locked in position a message will appear in the instrument panel e.g. Gear lever Press brake pedal to activate gear lever.
There is no mechanical shiftlock function.1