Rear Climate Control System
The lower buttons on the rear seat audio are used to adjust the rear seat climate controls. The temperature of the air coming through the rear outlets is determined by the front passenger’s temperature setting.

(Fan) Press this button
to adjust the
fan speed.
(Mode) Press this button to
change the
direction of airflow in the rear seat area to
either vent, bi-level or floor mode.
(On/Off) Press this button
to turn the rear
climate controls on or off.
The rear control will only turn on if the front is on and not in defrost mode.
See also:
Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system
overload.
When the current electrical load is too heavy, the circuit breaker opens and
closes, protecting the ci ...
Customer Assistance Offices (U.S. and Canada)
Buick encourages customers to call
the toll-free number for assistance.
However, if a customer wishes to
write or e-mail Buick, the letter
should be addressed to:
United States
Buick Customer ...
Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every
5 000 km/3,000 mi.
Have underbody flushing service performed once a year.
...
