Opel Automobile Owner's Manual page 147

Release stowed coupling ball
bar
Pull the grip under the rear bumper
fascia at an angle of approx. 45° to the
ground.
A buzzing tone sounds as a warning
when the release handle is pulled out
and the ball neck is disengaged.
Take the released coupling ball bar
and raise it up until it engages.
Be sure to have the coupling ball bar
correctly engaged and the released
handle guided back to its hidden initial
position, otherwise the buzzing tone
will not stop.
Driving and operating
Stow/hide coupling ball bar
Pull the grip under the rear bumper
fascia at an angle of approx. 45° to the
ground.
147