With Selective Ride Control
1. Move the shift lever to the left from D (Drive).
The vehicle will be in Sport Mode. The gear indicator in the DIC will still display a D for Drive, and the SPORT MODE ON message will be displayed momentarily. See Driver Information Center (DIC). When you are in Sport Mode, the vehicle will still shift automatically, but chassis tuning is modified. See Selective Ride Control.
If you move the shift lever forward or rearward, the transmission will enter Manual Mode, and the DIC gear indicator will change to an M followed by a number representing the gear the vehicle is currently in.
2. In Manual Mode, press the shift lever forward to upshift or rearward to downshift.
See also:
Customer Assistance Offices
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 — Customer Assist ...
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins ...
Cooling System
The cooling system allows the engine to maintain the
correct working temperature.
3.9L Engine
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Cooling Fans
4.6L Engine
...