GM Service Manual Online
For 1990-2009 cars only
Table 1: Audible Warning Tone Sequence
Table 2: Tone Frequency

An audible warning chime is incorporated in the instrument cluster. This feature is used to emphasize the warning conditions in the following table, with the tone and repetition rate of the chime varied to allow different warnings to be identified by sound. In addition to the warning conditions displayed on the multifunction display (MFD), the audible warning chime will sound when buttons on the trip computer switch assembly are pressed or certain functions are entered. The description and tone of each warning is described in the following table. The frequency of each tone is listed in the following table.

Audible Warning Tone Sequence

DESCRIPTION

Sequence of Tones

Overspeed

D, F

Underspeed

F, D

Low Fuel

B1, B

Repeated four times

Park Brake

C, D, E, E, E, E, E

Over Temperature

C, D, E, E, E, E, E

Low Coolant

C, D, E, E, E, E, E

Low Oil

C, D, E, E, E, E, E

ABS

C, D, E, E, E, E, E

Check Alternator (Generator)

C, D, E, E, E, E, E

Service Engine Oil

C, D, E, E, E, E, E

Service Vehicle Soon

C, D, E, E, E, E, E

Service Transmission Oil

C, D, E, E, E, E, E

Trip Computer Switch SET button

C1, F1

Trip Computer Switch MODE button

C

Trip Computer Switch UP or DOWN buttons

F

Entering the Auxiliary Function

C1, E1

Entering the Customisation Mode

C1, E1, F

Using the Reset Function

C1, E1, F

Airbag Warning

D, E, F

Repeated twice

Setting a Function ON or OFF

C1, E1

Seat Belt

F

Repeated for up to 8 seconds

Key in Ignition / Door Open

C

Repeated indefinitely

Rest Reminder

B, C

Repeated indefinitely

Tone Frequency

TONE

FREQUENCY (Hz)

TONE

FREQUENCY (Hz)

B

494

B1

988

C

523

C1

1047

D

587

--

--

E

659

E1

1319

F

698

F1

1397