Warning Chime Characteristics
Each warning chime has unique characteristics to identify and differentiate each warning chime. The warning chimes use volume, chime frequency, length of time the chime sounds and the number of chime tones to identify which chime is sounding. The IPC prioritizes the chimes according to a preset hierarchy programmed into the IPC software. When more than one chime request is received by the IPC, the most important chime sounds. If a lower priority chime is currently sounding, the higher priority request takes over and replaces the lower priority chime.
There are 3 different chimes as listed below:
- Repetitive
- Single tone
- Tick-tock
The following table provides a summary of the chime characteristics including the chime priority.
INSTRUMENT PANEL CLUSTER (IPC) CHIME CHARACTERISTICS
| Chime Name | Chime Type | Condition/Description |
|---|---|---|
| Active park assist | Single/repetitive | Provides either single or repetitive tones depending on the nature of the message received from the Parking Aid Module (PAM). |
| Adaptive cruise control | Single (high priority or low priority) | The high priority chime and low priority chime sound for a single chime tone when driver intervention is required. |
| Air bag | Repetitive | The chime sounds five 0.75-second tones. |
| Belt-Minder® A/B | Repetitive | The chime sounds 6 chime tones/safety belt warning indicator flash sequences for as long as the IPC receives the Belt-Minder® chime request. |
| Door ajar | Single | The chime sounds a 2-second tone when the key is in the RUN position and a door changes from closed to ajar. |
| Forward collision warning | Single | The chime sounds for a single 1.5-second chime tone when a forward collision potential has been detected. |
| Headlamps on | Repetitive | The chime sounds a 0.75-second tone repetitively for as long as the headlamps are on and the IPC receives the chime on command. |
| Key-in-ignition | Repetitive | The chime sounds a 0.75-second tone repetitively for as long as the ignition is in ACC mode with the driver door ajar. |
| Memory feedback feature | Single tone | The chime sounds for 0.1-second when the IPC receives a memory state change message. |
| Message center | Single | This is a single, 0.75-second tone that chimes once per ignition cycle whenever the IPC receives a new request to display one of the message center warnings. |
| Parking brake on | Repetitive | The chime sounds a 0.75-second tone repetitively for as long as the parking brake is applied and the IPC receives the chime on command. |
| Safety belt | Repetitive | The chime sounds a 2-second tone 6 times or as long as the safety belt is unbuckled and the IPC receives the chime on command. |
| Service AdvanceTrac® | Repetitive | The chime sounds three 0.75-second chime tones for as long as the IPC receives the chime request on command. |
| Turn signal left on | Repetitive | The chime sounds a 2-second tone repetitively for as long as the RH or LH turn signal is on, the vehicle has travelled 3.2 km (2.0 miles) and the IPC receives the chime on command. |
| Turn signal | Tick-tock | Repetitive tick-tock tones for as long as the RH or LH turn signal command is received by the IPC. |