See also:

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, ...

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...

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 ce ...