See also:

Remote Keyless Entry (RKE) System Operation
The transmitter functions will work up to 20m(65 ft) away from the vehicle. Keep in mind that other conditions, such as those previously stated, can impact the performance of the transmitter. ...

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 sy ...

Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) ...