C 3500 HD Truck 2WD V8-8.1L VIN G (2002)
Memory Positioning Systems: Description and Operation
Vehicle Personalization
The horns may be personalized in order to chirp when the vehicle is locked using the remote keyless entry transmitter. In order to enable the horn chirp,
turn the ignition OFF prior to performing the transmitter programming. In order to disable the horn chirp, turn the ignition ON prior to performing the
transmitter programming.
For further information, refer to Transmitter Programming in Keyless Entry.