Cadillac 2010 DTS Owner's Manual page 169

located on the instrument panel, to make the front and
rear turn signal lamps flash on and off. This warns
others that you are having trouble.
Press again to turn the flashers off.
Press near or on the horn symbols on the steering
wheel pad to sound the horn.
Press this button
This feature allows the position of the steering wheel to
be adjusted.
1. Pull the lever to move the steering wheel up
or down.
2. Release the lever to lock the wheel in place.
Do not adjust the steering wheel while driving.
The adjustment lever is
located on the left side of
the steering column.
4-3