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Home >> Cadillac >> 2001 >> Seville STS >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Locks & Remote Keyless Entry Systems >> Description & Operation (Remote Keyless Entry) >> Rolling Code

Rolling Code

Remote Keyless Entry (RKE) system uses rolling code technology. Rolling code technology prevents anyone from recording message sent from remote transmitter and using this message in order to gain entry to vehicle. Term "rolling code" refers to way that RKE system sends and receives signals. Remote transmitter sends signal in a different order each time. Remote transmitter and Remote Control Door Lock Receiver (RCDLR) are synchronized to appropriate order. If a programmed remote transmitter sends a signal that is not in order that RCDLR expects, then remote transmitter is out of synchronization. This occurs after 256 presses of any transmitter button when it is out of range of vehicle.