Keyless Entry Transmitters
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The keyless entry transmitter are used to lock and unlock the vehicle door and rear compartment, operate the power liftgate (if equipped), as well as open the liftglass, from a distance of up to 60 feet (18 m) away. Up to 8 transmitters may be programmed to a single vehicle.