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 Q to try the call again or try again after driving a few miles into another cellular area. 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 operate if the battery is discharged or disconnected.
See also:
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer.
This can help to avoid situations that require heavy braking and sudden turns. ...
Infotainment
Determine which radio the vehicle has and read the following pages to become familiar with its features.
WARNING
Taking your eyes off the road for extended periods could cause a crash resulting in i ...
Capacities and Specifications
The following approximate capacities are given in metric and English
conversions. See Recommended Fluids and Lubricants on page 11‑12 for more information.
If the vehicle has a diesel engine, ...