Chime Warning System

The chime warning system operates on battery voltage received on a non-switched fused B(+) circuit so that the system may operate regardless of the status of the ignition switch. The chime warning system also monitors the ignition switch status so that some chime features are functional only when the status of the ignition switch is On, while others are functional regardless of the ignition switch status.

The chime warning system provides an audible indication to the vehicle operator or occupants under the following conditions:

• ABS Indicator Warning  - On vehicles equipped with an Antilock Brake System (ABS), the Instrument Cluster (IC) (also known as the Common Instrument Cluster/CIC) will generate one short chime each time the ABS indicator is illuminated. This warning indicates a failure condition has been monitored affecting the operation of the ABS related components or circuits. This warning will only occur following completion of the ABS indicator bulb test, and will only occur once during any ignition cycle.
• Adjustable Pedal System Warning  - On vehicles equipped with an adjustable pedal system, the IC will generate one short chime each time a pedal adjustment request is received and a PEDAL ADJUST. DISABLED - CRUISE CONTROL SET  or a PEDAL ADJUST. DISABLED - SHIFTER IN REVERSE  textual message is displayed in the Electronic Vehicle Information Center (EVIC) display of the IC. A single short chime will also be sounded each time a pedal adjustment request is received while a failure condition has been monitored affecting the operation of the adjustable pedal system related components or circuits.
• Airbag Indicator Warning  - The IC will generate one short chime when the status of the ignition switch transitions to On and the airbag indicator is illuminated. This warning indicates a failure condition has been monitored affecting the operation of the Supplemental Restraint System (SRS) related components or circuits. This warning will only occur following completion of the airbag indicator bulb test.
• Automatic Oil Change Indicator  - The IC will generate one short chime each time an OIL CHANGE REQUIRED  or OIL CHANGE RESET  textual message is displayed in the EVIC display of the IC. This warning indicates that a duty-cycle algorithm contained within the software of the Powertrain Control Module (PCM) (also known as the Engine Control Module/ECM) has determined that a recommended oil change interval has been attained, or that a reset of the interval has been requested following performance of the recommended service.
• Charging System Indicator Warning  - The IC will generate one short chime each time the status of the ignition switch is On and the charging system indicator is illuminated. This warning indicates that a failure condition has been monitored affecting the operation of the charging system related components or circuits.
• Check Gauges Warning  - The IC will generate one short chime each time the CHECK GAUGES  textual message is displayed in the EVIC display of the IC. This warning indicates that a gauge is reflecting a condition requiring the attention of the vehicle operator.
• Check Engine Indicator Warning  - The IC will generate one short chime when the status of the ignition switch is On and the Check Engine (Malfunction Indicator Lamp/MIL) indicator is illuminated. This warning indicates that a failure condition has been monitored affecting the operation of a critical fuel or emissions related component or circuit.
• Check Shift Procedure Fault Warning  - On vehicles equipped with an optional four-wheel drive transfer case, the IC will generate one short chime each time the CHECK SHIFT PROCEDURE  textual message is displayed in the EVIC display of the IC. This warning indicates that an electronically controlled transfer case shift request has not been successfully completed due to the use of an improper shift procedure. Refer to the owner's manual in the vehicle glove box for the proper electronic transfer case shift procedure.
• Door Ajar Warning  - The IC will generate one short chime when a DOOR(S) OPEN  textual message and icon are displayed in the EVIC display of the IC. This warning indicates that a door is, or multiple doors are not closed or completely latched while the vehicle is moving.
• Electronic Stability Control System Warning  - On vehicles equipped with an Electronic Stability Control (ESC) system, the IC will generate one short chime when the ESC OFF  textual message is displayed in the EVIC display of the IC. This warning indicates that the ESC system has been manually disabled using the ESC switch.
• Electronic Stability System Fault Warning  - On vehicles equipped with an ESC system, the IC will generate one short chime each time the ESP/BAS indicator is illuminated in the IC. This warning indicates a failure condition has been monitored affecting the operation of the ESC related components or circuits. This warning will only occur following completion of the ESC indicator bulb test, and will only occur once during any ignition cycle.
• Fasten Seat Belt Indicator Warning  - The IC will generate repetitive chimes at a slow rate to announce that an input from the seat belt switch and the ignition switch indicate that the driver side front seat belt is not fastened while the status of the ignition switch is On. The chime warning system also supports the enhanced seat belt reminder (beltminder) when this feature is enabled. Refer to INDICATORS, INSTRUMENT CLUSTER, OPERATION .
• Four-Wheel Drive System In NEUTRAL Warning  - On vehicles equipped with a four-wheel drive transfer case, the IC will generate one short chime each time the 4WD SYSTEM IN NEUTRAL  textual message is displayed in the EVIC display of the IC. This warning confirms that a Neutral (N  ) shift request for the electronically controlled transfer case has been successfully completed.
• Gate Ajar Warning  - The IC will generate one short chime when a LIFTGATE OPEN  textual message and icon are displayed in the EVIC display of the IC. This warning indicates that the liftgate is not closed or completely latched while the vehicle is moving.
• Head/Park Lamps-ON Warning  - The IC will generate repetitive chimes at a fast rate to indicate that hard-wired inputs from the headlamp switch and the ignition switch indicate that the exterior lamps are turned On while the status of the ignition switch is Off, and either a hard-wired input or an electronic message is received over the CAN data bus indicating that the driver side front door is open. The chimes will continue to sound until the exterior lamps are turned Off, the driver side front door is closed or the status of the ignition switch transitions to On, whichever occurs first.
• Low Brake Fluid Warning  - The IC will generate one short chime when a LOW BRAKE FLUID LEVEL  textual message is displayed in the EVIC display of the IC. This warning indicates that the monitored fluid level in the brake master cylinder is low.
• Low Coolant Warning  - The IC will generate one short chime when the COOLANT LOW  textual message and icon are displayed in the EVIC display of the IC. This warning indicates that the monitored engine coolant level in the coolant reserve bottle is low. This chime will only occur once during any ignition cycle.
• Low Fuel Warning  - The IC will generate one short chime when the FUEL LOW  textual message and icon are displayed in the EVIC display of the IC. This warning indicates that the monitored fuel level in the fuel tank is low. This chime will only occur once during any ignition cycle.
• Low Oil Pressure Indicator Warning  - The IC will generate one short chime when the low oil pressure indicator is illuminated and the engine speed is greater than 300 revolutions per minute. This warning indicates that the monitored engine oil pressure is low.
• Low Wash Warning  - The IC will generate one short chime when the WASHER FLUID LOW  textual message and icon are displayed in the EVIC display of the IC. This warning indicates that the monitored washer fluid level in the washer reservoir is low.
• Overspeed Warning  - The IC will generate repetitive chimes at a slow rate when the WARNING! LIMIT SPEED  textual message is displayed in the EVIC display of the IC. This warning indicates that the vehicle speed is over a pre-programmed speed value. This feature is only enabled on vehicles that have been configured for sale in a Middle East Gulf Coast Country (GCC).
• Park Assist System Warning  - On vehicles equipped with an optional rear park assist system, the IC will generate one short chime when the PARK ASSIST DISABLED  textual message is displayed in the EVIC display of the IC. This warning indicates that the rear park assist system has been manually disabled using the park assist switch. This chime warning will only occur as the gear selector is being moved from any position except Reverse (R  ) or Neutral (N  ) into R  or N  .
• Park Brake Reminder  - The IC will generate one short chime when the brake/park brake indicator is illuminated to announce that the park brake is applied or not fully released and the vehicle is moving. This chime will only occur once during any ignition cycle.
• Power Liftgate Indicator Warning  - On vehicles equipped with a power-operated liftgate, the IC will generate one short chime when a UNLOCK TO OPERATE, PUT IN PARK TO OPERATE, FUNCTION DISABLED, OBSTACLE DETECTED  or MANUAL CLOSE TO OPERATE  textual error message is displayed in the EVIC display of the IC. This message indicates that the power liftgate is inoperable due to the displayed error condition.
• Remote Keyless Entry System Warning  - The IC will generate one short chime when a SERVICE KEYLESS SYS., KEY FOB NOT DETECTED, VEHICLE NOT IN PARK  or VEHICLE NOT IN REVERSE  textual error message is displayed in the EVIC display of the IC. This message indicates that a Passive Entry and Keyless Go (PEKG) system feature is inoperable due to the displayed error condition.
• FOBIK PROGRAMMING - Refer to  STANDARD PROCEDURE  . 
• Service Four-Wheel Drive Warning  - On vehicles equipped with a four-wheel drive transfer case, the IC will generate one short chime each time the SERVICE 4WD SYSTEM  textual message is displayed in the EVIC display of the IC. This warning indicates a failure condition has been monitored affecting the operation of the electronically controlled transfer case related components or circuits.
• Service Park Assist System Warning  - On vehicles equipped with the rear park assist system, the IC will generate one short chime each time the SERVICE PARK ASSIST SYSTEM  textual message is displayed in the EVIC display of the IC. This warning indicates a failure condition has been monitored affecting the operation of the park assist system related components or circuits.
• Service Tire Pressure Monitor System Warning  - On vehicles equipped with a base or optional premium Tire Pressure Monitor (TPM) system, the IC will generate one short chime each time a SERVICE TIRE PRESS. SYSTEM  textual message is displayed in the EVIC display of the IC. This warning indicates a failure condition has been monitored affecting the operation of the tire pressure monitor system related components or circuits.
• Tire Pressure Monitor Warning  - On vehicles equipped with a base or optional premium Tire Pressure Monitor (TPM) system, the IC will generate one short chime each time a LOW PRESSURE  textual message is displayed in the EVIC display of the IC. This warning indicates that a low pressure condition has been monitored in one of the tires on or in the vehicle.
• Trans Overtemp Warning  - The IC will generate one short chime each time the TRANSMISSION OVER TEMP  textual message is displayed in the EVIC display of the IC. This warning indicates that the fluid temperature in the automatic transmission is excessive. This chime will repeat each time the trans overtemp message is cycled from Off to On.
• Turn Signal/Hazard Warning Flasher Emulation  - The IC will generate repetitive clicks at a slow rate to emulate an electromechanical flasher when the turn signal or hazard warning system are operating. The IC will generate repetitive clicks at a fast rate to indicate that the right or left turn signal are operating with one or more bulbs or circuits ineffective. In either case, the clicks will continue until the turn signal and hazard warning systems are turned Off.
• Turn Signal On Warning  - The IC will generate one short chime and a TURN SIGNAL ON  textual message with a blinking right or left turn signal icon are displayed in the EVIC display of the IC. This warning indicates that a turn signal has been active continuously for 1.6 kilometers (1 mile) with the vehicle speed greater than 22 kilometers-per-hour (15 miles-per hour). The hazard warning flashers will not activate this chime feature.

The IC provides chime service for all available features in the chime warning system. The IC relies upon its internal programming, numerous hard-wired inputs as well as electronic message inputs received from other modules over the Controller Area Network (CAN) data bus to provide the chime warning system features. The internal programming of the IC determines the priority of each chime request input that is received, as well as the rate and duration of each chime that is to be generated.

The hard wired circuits between components related to the chime warning system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the chime warning system or the electronic controls and communication between modules and other devices that provide some features of the chime warning system. The most reliable, efficient and accurate means to diagnose the chime warning system or the electronic controls and communication related to chime warning system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.