Operation CHARM: Car repair manuals for everyone.

Principles of Operation (How Does it Work?)

Safety Belt Warning Chime
The safety belt warning chime alerts that the safety belt is not fastened. The safety belt chime will sound when the driver safety belt is not fastened and the ignition switch is turned from the OFF to the RUN or START position. The safety belt warning chime will stop when the safety belt is fastened, when the ignition is switched to the OFF position or after the chime has sounded for six seconds.

[1][2]Belt Minder
The belt minder feature is configurable. To configure without using a diagnostic tool, refer to Belt Minder Deactivating/Activating under General Procedures.

The [1][2]belt minder feature supplements the current driver safety belt warning function. The belt minder feature is enabled after the current safety belt warning is complete. The belt minder reminds the driver that their safety belt is unbuckled by intermittently sounding a chime and illuminating the safety belt warning lamp in the instrument cluster once the vehicle speed has exceeded three mph. While activated, the belt minder alternates the chime and indicator from ON for 6 seconds to OFF for 30 seconds.

Door Ajar Warning Chime
When any door is ajar and the ignition switch is in the RUN position, the door ajar instrument cluster lamp is activated and remains on until all doors are closed. A warning tone will sound once any time the key is in the ignition switch and any door is opened.

Headlamp On Warning Chime
The headlamp on warning chime alerts that the headlamps or parking lamps are on, the key is not in the ignition switch, and the driver door is opened.

Key-in-Ignition Warning Chime
The key-in-ignition warning chime will sound when the driver door is opened with the key in the ignition switch and the ignition switch in OFF or ACC. It will continue to sound until the key is removed, the driver door is closed, or the ignition switch is turned to RUN or START.