Audible Warnings

The Body Control Module (BCM) determines the priority of the chime requests and the highest priority chime request is activated. The functions which cause the audible warning to be activated by the BCM are listed from lowest to highest priority:
1. Automatic Door Lock (ADL)-delayed locking verification
2. Automatic Door Lock (ADL)-programming option notification
3. Check gauges
4. Headlamps left on
5. Key left in the ignition
6. Oil life reset
7. Overspeed warning (export only)
8. Park brake
9. Tire Inflation Monitoring System (TIMS) reset
10. Turn signal left ON
11. Seatbelt not fastened

Only 1 alarm may be ON at a given time. For simultaneous chime conditions, the chimes have the priority level as listed. For simultaneous chime conditions, complete all of the pending low priority alarms after completing the higher priority alarms. If alarms occur concurrently, complete the highest priority repetition rate exponential decay to 2% of peak value before transitioning to the next alarm repetition rate.

Following an ignition transition, the check-gauges chime shall queue while waiting for the seatbelt chime to finish. After the seatbelt chime stops, the queued check-gauges chime shall sound for as long as the condition still exists.

Body Control System Operation:

The repetition rate for each function is as shown:

Upon a loss of Powertrain Control Module (PCM) Class 2 serial data, the chime turns OFF for the following conditions associated with the PCM indicator messages:
^ Overspeed
^ Oil life reset acknowledgment
^ Turn signal ON
^ All check-gauges chimes

Upon a loss of Electronic Brake Control Module (EBCM) Class 2 serial data, the chime turns OFF for the following conditions associated with the EBCM indicator messages:
^ TIMS reset acknowledgment
^ All check-gauges chimes

Upon a loss of instrument cluster Class 2 serial data, the chime turns OFF for all check-gauges chimes associated with the instrument cluster indicator messages.

Upon a loss of Body Control Module (BCM) Class 2 serial data, the chimes turn OFF for all check-gauges chimes associated with the BCM indicator messages. Regardless of Class 2 serial data condition, the following chimes become active when the necessary conditions are present:
^ Seatbelt
^ Headlamps ON
^ Key In the ignition switch
^ Automatic Door Lock (ADL) delayed lock
^ Automatic Door Lock (ADL) programming option

Refer to A Diagnostic System Check - Audible Warnings.