Flash: Body Control Module (BCM) Updates
This bulletin involves reprogramming the BCM with the latest available software.
Customers may notice after locking the car, two horn chirps are heard, under normal operation only one horn chirp is heard. Upon further investigation the technician may find the following
Diagnostic Trouble Code (DTC): U1413-09 - UAM (Ultrasonic and Antitilt Module) - Component Failures. Vehicles with Premium Security Alarm (Sales Code LSC)
In addition, the customer may notice one or more of the following: Rear windows are inoperative and will not roll down. Brake lights will intermittently remain on. Intermittently, unable to turn on high beam headlights.
