For 1990-2009 cars

### Chime Conditions

An audible warning is used to indicate a system fault or warn the driver of a critical vehicle condition.

The BCM checks calibration data for chime information anytime a driver warning or message is displayed.

Audible warnings bring the driver's attention to one or more of the following conditions:

• | The seat belt is unbuckled and the ignition switch is in ON or START.

• | The key is in ignition switch, the ignition switch is set to OFF or ACC, and drivers front door is open.

• | The headlamps or parklamps are on, the ignition switch is in OFF or ACC, the and drivers door is open.

• | The parking brake is engaged and the vehicle is moving faster than 5 km/h (3 mph).

• | The parking brake is engaged and the vehicle is in gear longer than 8 seconds.

• | The check gauges indicator is on.

• | The turn signal is on continuously for a distance of 1.2 km (0.75 mi.).

### Chime Priorities

When multiple chimes are required, only the chime with the highest priority sounds. The chimes are prioritized as follows:

• | The Fasten Seat Belts Warning chime overrides all other audible chimes if they exist simultaneously.

• | The Key In Ignition Warning chime overrides the Lamps On Warning chime if both exist simultaneously.

### Chime Rates

The rates of chime operation are as follows:

• | The fasten belts warning chime rate is 50 pulses per minute.

• | The lamps on warning chime rate is 300 pulses per minute.

• | The key in ignition warning chime rate is 150 pulses per minute for the first three seconds, then 18 per minute at the 50 per minute decay rate.

• | The park brake warning chime rate is 300 pulses per minute with continuous operation if the vehicle is moving at a rate of speed greater than 5 km/h (3 mph) or vehicle in gear longer than 8 seconds.