Audible Warnings Description and Operation
The audible warnings alert the driver of a system concern or a critical vehicle condition. The smart junction block inside the I/P fuse block generates the audible warnings through the speaker. The smart junction block receives audible warning requests via the serial data circuit. If the radio receives multiple audible warning requests, the warning with the highest priority sounds first.
Fasten Safety Belt Warning
The smart junction block activates the fasten safety belt audible warning as requested by the SDM. The SDM sends a serial data message to the smart junction indicating the chime as a multiple gong. The fasten safety belt warning sounds and the fasten safety belt indicator illuminates when the following occurs:
| • | The ignition switch transitions to ON. |
| • | The inflatable restraint sensing and diagnostic module (SDM) detects that the drivers seat belt is not buckled and the signal is low. The SDM sends a serial data message to the cluster indicating the seat belt status. The instrument cluster receives a serial data message indicating the driver seat belt status. |
If the seat belt is buckled when the ignition is turned ON, the chime does not sound. If the seat belt is buckled while the chime is sounding, the chime stops.
Additional Warnings
The following warnings have an associated instrument cluster indicator or driver information centre message:
| • | Indicator Indicators-The chime producer activates the audible warning as requested by the BCM. The chime produces two different chimes, one when the indicator turns off and another when the indicator turns on. |
| • | Vehicle Overspeed Message-The chime producer activates the audible warning as requested by the BCM. The BCM sends a serial data message to the chime producer. |
Refer to Indicator/Warning Message Description and Operation .
| © Copyright Chevrolet. All rights reserved |
