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:
Door Locks
There are several ways to lock and unlock the vehicle.
From outside, use the Remote Keyless Entry (RKE) transmitter or the key in the driver door.
From inside, use the power door locks or the manual ...
Vehicle Load Limits
It is very important to know how much weight the vehicle can carry. This weight
is called the vehicle capacity weight and includes the weight of all occupants,
cargo and all nonfactory&-instal ...
Replacing Safety Belt System Parts after a Crash
WARNING
A crash can damage the safety belt system in the vehicle.
A damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To ...