Keyless Entry Transmitters
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2017 GMC Sierra 3500 HD, 2017 GMC Sierra 2500 HD, 2017 GMC Sierra 1500, 2017 Chevrolet Silverado 3500 HD, and 2017 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When the vehicle key is in the ignition, keyless entry functions from all keyless entry transmitter are disabled.
The keyless entry transmitters are used to perform various entry functions while away from the immediate are of the vehicle. Keyless entry functions may work at up to 20 m (65 ft) away from the vehicle. Ambient conditions may affect the performance of the keyless entry transmitter and reduce the range at which keyless entry functions operate. Up to eight transmitters may be programmed to a single vehicle.