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Home >> Cadillac >> 2007 >> CTS Base, 2.8 T, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 639 (Keyless Entry System And Remote Functions) >> Description and Operation >> Keyless Entry System Description and Operation >> Keyless Entry System Description and Operation >> Keyless Entry System Description and Operation - Active
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Keyless Entry System Description and Operation - Active

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

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 or open the rear compartment lid when a corresponding button on the keyless entry transmitter is pressed. This is accomplished by the transmitter sending a radio frequency (RF) to the remote control door lock receiver (RCDLR). The RCDLR has an external antenna in the back glass that receives the RF signal. The RCDLR interprets the signal and activates the requested function via a serial data message. A low transmitter battery or 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 features:

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