Volvo S80 Owner's Manual page 218

The indicator window must show red.
Insert the towball section until you hear a
click.
The indicator window must show green.
Turn the key anticlockwise to locked posi-
tion. Remove the key from the lock.
05 During your journey
Driving with a trailer
Check that the towball section is secure by
pulling it up, down and back.
WARNING
If the towball section is not fitted correctly
then it must be removed and refitted in
accordance with the previous instructions.
IMPORTANT
Only grease in the ball for the towing hitch,
the remainder of the towball section should
be clean and dry.
05
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