Buick LaCrosse: 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.
Cellular and GPS Antennas
Avoid placing items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle. ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...
See also:
Illumination brightness control
The illumination brightness of the clock display, audio, air conditioner, multi
function display and meter/gauge dims under the following conditions.
● when the light switch is in the “ в ...
Fault tracing and actions
If the message Radar blocked See manual is displayed, this means that the radar
signals from the sensor have been obstructed and that a vehicle ahead cannot be
detected.
This, in turn, means that ...
Engine Oil
To ensure proper engine performance and long life, careful attention must be paid to engine oil.
Following these simple, but important steps will help protect your investment:
► Always use eng ...
