See also:

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system ...

Trailer Towing (CTS-V and Coupe)
The vehicle is neither designed nor intended to tow a trailer. ...

Older Children
Older children who have outgrown booster seats should wear the vehicle safety belts. The manufacturer's instructions that come with the booster seat state the weight and height limitation ...