Horn
Press 
on the steering wheel pad to sound the horn.
See also:
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check
tire pressure levels. The TPMS sensors monitor the air pressure in your tires and
transmit tire pressure readings ...
Customer Assistance Offices (U.S. and Canada)
Cadillac encourages customers to call the toll-free number for assistance. However,
if a customer wishes to write or e-mail Cadillac, the letter should be addressed
to:
United States
Cadillac Cu ...
Power Reclining Seatbacks
To adjust a power seatback,
if equipped:
- Tilt the top of the vertical control
rearward to recline.
- Tilt the top of the vertical control
forward to raise. ...