Unable to Connect to OnStar Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push 
to try the
call again or try again after driving a
few miles into another cellular area.
See also:
When to Check and Change Automatic
Transmission Fluid
A good time to check the automatic transmission fluid
level is when the engine oil is changed.
Change the fluid and filter at the intervals listed in
Scheduled Maintenance and be sure to
use th ...
Online Owner Center
Buick Owner Center (U.S.) www.buickownercenter.com
Information and services customized for your specific vehicle — all in one convenient place.
► Digital owner manual, warranty information, ...
To Use the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. The electrical cord is located
on the passenger side of the engine compartment, near the air cleaner.
3. Plug it into a n ...