Keyless Entry System Description and Operation: Notes

The keyless entry system is a vehicle entry device. The keyless entry system is used in conjunction with the door locks to unlock the vehicle. Keyless entry will lock/unlock a door when a corresponding button on the keyless entry transmitter is pressed. This is accomplished by the transmitter sending a radio frequency to the remote control door lock receiver (RCDLR). The RCDLR interprets the signal and activates the requested function via a serial data message. A low transmitter battery or radio frequency (RF) interference from aftermarket devices, such as 2-way radios, power inverters, computers, etc., may cause a system malfunction. High RF traffic areas, such as gas stations that use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction. Keyless entry allows you to operate the following components:

• The door locks
• The illuminated entry lamps.
• The panic alarm.
• Remote vehicle start (RVS).

The keyless entry system has the following main components:

• The keyless entry transmitters
• The body control module (BCM)
• The remote control door lock receiver (RCDLR)-When you press a button on the transmitter, the transmitter sends a signal to the RCDLR. The RCDLR receives the signal and sends a X Link serial data message requesting the appropriate function from the BCM.