WARNING
The tow ball arm may only be inserted when completely unlocked.
Note: Pull out the plug.
1. Insert the tow ball arm vertically and press it upward until it engages.
Note: Do not hold your hand near the handwheel.
Note: The green mark on the handwheel must align with the white dot on the tow ball.
2. Turn the key clockwise and remove the key to lock the tow ball.
3. Pull the protecting cap from the key bow and press it onto the lock.