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:
Under the Hood
The Savana may be equipped with one of four engines. Light-duty, RWD G-Series
vans have a 200-hp, 4.3-liter V-6 as the base engine. Three V-8s are available:
a 270-hp 4.8-liter, a 285-hp 5.3-liter ...
StabiliTrak® Indicator Light
This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light goes off.
If it stays on, or ...
Brakes
Brakes stop the vehicle and are crucial to safe driving.
• Signs of brake wear may include chirping, grinding, or squealing noises, or difficulty stopping.
• Trained dealer technicians have acce ...