GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Aurora 🢒 Body and Accessories 🢒 Instrument Panel, Gages, and Console 🢒 Audible Warnings Description and Operation

The audible warnings alert the driver of a system concern or a critical vehicle condition. The radio generates the audible warnings through the left front speaker. The radio receives audible warning requests via the class 2 serial data line. If the radio receives multiple audible warning requests, the warning with the highest priority sounds first. The following lists the audible warning priority and the pulse rate:

  1. Fast rate chime (200 pulses per minute)
  2. Medium rate chime (150 pulses per minute)
  3. Slow rate chime (50 pulses per minute)
  4. Single chime

Door Ajar Warning

The radio activates the door ajar audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency and the duration. The door ajar warning sounds and the DIC displays the XX DOOR AJAR message when the following occur:

    • The driver door module (DDM) detects that the driver door is open (signal circuit is low). The IPC receives a class 2 message from the DDM indicating the door ajar status.
    • The IPM detects that the key is in the ignition. The IPC receives a class 2 message from the IPM indicating the key-in-ignition status.
    • The vehicle is not in park or neutral. The IPC receives a class 2 message from the PCM indicating the gear position.

Fasten Safety Belt Warning

The radio activates the fasten safety belt audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency and duration. 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 driver's seat belt is not buckled (signal is low). The IPC receives a class 2 message from the SDM indicating the driver's 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. If the seat belt is unbuckled after the initial transition to ON, the chime does not sound.

Headlamps Suggested Warning

The radio activates the headlamps suggested warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency and the duration. The headlamps suggested warning sounds, and the HEADLAMPS SUGGESTED message displays in the DIC when the IPM detects a low ambient light condition, and the vehicle is not in park or neutral.

Key-In-Ignition Warning

The radio activates the key-in-ignition audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency (medium rate) and duration (continuous). The key-in-ignition warning sounds when the following occurs:

    • The ignition switch is OFF.
    • The driver door module (DDM) detects that the driver door is open (signal is low). The IPC receives a class 2 message from the DDM indicating the door ajar status.
    • The instrument panel integration module (IPM) determines that the key-in-ignition switch is open (signal is high). The IPC receives a class 2 message from the IPM indicating the key-in-ignition status.

Park Brake Warning

The radio activates the park brake warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency and duration. The park brake warning sounds and the BRAKE indicator illuminates when the following occur:

    • The park brake is applied (signal circuit is low).
    • The vehicle moves 3-15.2 m (10-50 ft).

Turn Signal On

The radio activates the turn signal on warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime rate. The turn signal on warning sounds and the DIC displays the TURN SIGNAL ON? message when the following occur:

    • The IPC detects that the one of the turn signals is on.
    • The vehicle travels more than 1.29 km (0.8 mi).

Additional Warnings

The following warnings have an associated IPC indicator or DIC message:

    • BRAKE (low brake fluid)
    • BRAKE (brake system malfunction)
    • BATTERY SAVER ACTIVE -- 29
    • CHANGE OIL NOW -- 2
    • CHANGE OIL SOON -- 3
    • Charging system indicator
    • CHECK GAS CAP -- 36
    • CHECK OIL LEVEL -- 5
    • ENGINE HOT...A/C OFF -- 9
    • HEADLAMPS SUGGESTED -- 27
    • HOT...IDLE ENGINE -- 32
    • HOT...REDUCE ENGINE RPM -- 10
    • HOT...STOP ENGINE -- 11
    • LOW FUEL -- 16
    • LOW OIL PRESSURE -- 17
    • Low oil pressure indicator
    • LOW TIRE PRESSURE -- 18
    • LOW WASHER FLUID -- 19
    • SERV STABILITY SYS -- 26
    • SERVICE VEHICLE SOON -- 23
    • STARTING DISABLED -- 33
    • THEFT ATTEMPTED -- 25
    • TRAC OFF
    • TRANS HOT...IDLE ENG -- 6
    • TRUNK AJAR -- 28