Volvo 2007 S80 - Manual (Page 166)

05 During your journey
165
Driving with a trailer
05
Installing the towball
Remove the guard plug
Ensure that the mechanism is in the un-
locked position by turning the key clockwise.
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
position. Remove the key from the lock.
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