GM Service Manual Online
For 1990-2009 cars only

Audible Warnings Operation

The audible warnings system informs the driver that one or more of the following conditions exist:

    • The exterior lights are on. Both of the following conditions are met:
       - The ignition switch is in any of the following positions:
   • LOCK
   • OFF
   • ACCY
       - The left front door is open.
    • The key is in the ignition. Both of the following conditions are met:
       - The ignition switch is in any of the following positions:
   • LOCK
   • OFF
   • ACCY
       - The left front door is open.
    • A safety belt is unbuckled. The ignition switch is in either of the following positions:
       - RUN
       - START
    • The vehicle has travelled over 1.2 km (3/4 mi) while a turn signal is on.
    • The vehicle has travelled approximately 12 m (40 ft) while the parking brake is engaged.

Chime Priorities

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

  1. The fasten seat belts warning chime overrides all other simultaneous audible chimes.
  2. 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 150 pulses per minutes.
    • The key-in-ignition warning chime rate is 200 pulses per minute.