Remote Alarm
Vehicles equipped with the content theft deterrent system (RPO UA6) have a remote alarm feature. When you press the ALARM button on the keyless entry transmitter, the RCDLR sends a message to the BCM through circuit 1455. This message performs the following 2 functions alternately for 2 minutes:^ Flash the exterior lamps
^ Sound the horn
In order to stop the alarm, press the ALARM button again.
For a description of the RPO Code(s) shown in this article, refer to the RPO Code List found at Vehicle/Application and ID. Application and ID