Trailer Stability Assist - Opel Automobile Owner's Manual

148 Driving and operating
A buzzing tone sounds as a warning
when the release handle is pulled out
and the ball neck is disengaged.
Hold the released coupling ball bar
and swivel it to the right until it
engages under the floor and make
sure that the release handle is back in
its hidden initial position.
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.
9 Warning
Towing a trailer is permitted only
when the coupling ball bar is fitted
correctly. If the coupling ball bar
does not engage correctly or if the
release handle is impossible to
guide to its hidden initial position in
the housing or if the buzzing tone
sounds after engaging the
coupling ball bar, seek the
assistance of a workshop.
Eye for break-away stopping cable
Attach break-away stopping cable to
eye.

Trailer stability assist

If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is
selectively braked until the snaking
ceases. While system is working keep
steering wheel as still as possible.
Trailer stability assistant (TSA) is
a function of the Electronic Stability
Control 3 133.