See also:

Electronic Range Select (ERS) Mode
ERS or manual mode allows for the selection of the range of gear positions. Use this mode when driving down hill or towing a trailer to limit the top gear and vehicle speed. To use this feature: ...

Power Door Locks
There is a power door lock switch on the instrument panel. There are power door lock switches on the front door panels. Q : Press to lock the doors. K : Press to unlock the doors. When locking ...

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 anoth ...