Keyless Entry Transmitters
WARNING: This page is about a different car, the 2008 Saab 9-7X. 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 a distance of up to 9 m (30 feet) away. Up to 4 transmitters may be programmed to a single vehicle.