Keyless Entry Transmitters
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
The keyless entry transmitters are used to lock and unlock the vehicle door while away from the immediate are of the vehicle. Vehicles without remote start will operate at a distance of up to 20 m (65 ft) away. Vehicles with remote start will operate at a distance of up to 60 m (195 ft) away. The keyless entry transmitter is an integral part of the vehicle key.