Volvo 2007 S80 Owner's Manual page 166

Installing the towball
1
Remove the guard plug
2
Ensure that the mechanism is in the un-
locked position by turning the key clockwise.
3
The indicator window must show red.
4
Insert the towball section until you hear a
click.
05 During your journey
Driving with a trailer
5
The indicator window must show green.
6
Turn the key anticlockwise to locked
position. Remove the key from the lock.
05
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