Volvo XC90 Owner's Manual page 176

06 Starting and driving
Detachable towbar*
4. Insert the towbar until you hear a click.
06
*
174
Option/accessory, for more information, see Introduction.
5. Check that the indicator window shows
green.
6. Turn the key anticlockwise to locked
position. Remove the key from the lock.
7. Check that the towbar is secure by pull-
ing it up, down and back.
WARNING
If the towbar is not fitted correctly then it
must be detached and reattached in
accordance with the previous instructions.
IMPORTANT
Only grease in the ball for the towing hitch,
the remainder of the towbar should be
clean and dry.