| Table 1: | IPC Indicators |
| Table 2: | DIC Indicators |
The indicator description and operation uses generic indicator names. Refer to the following tables for the indicators that are available on this vehicle:
Vehicle Indicator Name | Indicator Description Title |
|---|---|
ABS symbol | ABS Indicator |
AIR BAG | Air Bag Indicator(s) |
Battery symbol | Charging System Indicator(s) |
BRAKE symbol | Brake System Indicator(s) |
CRUISE | Cruise Control Indicator |
Fasten Safety Belt symbol | Fasten Safety Belt Indicator |
High Beam symbol | Lighting System Indicator(s) |
Hot Coolant Temperature | Cooling System Indicator(s) |
km/h | km/h and mph Indicator(s) |
Low Fuel | Fuel System Indicator(s) |
MPH | km/h and mph Indicator(s) |
Oil Pressure symbol | Engine Oil Indicator(s) |
SECURITY | Theft Deterrent Indicator(s) |
SERVICE ENGINE SOON | Malfunction Indicator Lamp (MIL) |
SERVICE VEHICLE SOON | Electrical System Indicator(s) |
TRACTION OFF | Traction Control Indicator(s) |
Turn Signal symbols | Lighting System Indicator(s) |
Vehicle Indicator Name | Indicator Description Title |
|---|---|
CHANGE ENGINE OIL SOON - 82 | Engine Oil Indicator(s) |
CHECK TIRE PRESSURES - 140 | Tire Pressure Indicator(s) |
DOOR AJAR - 23 | Door Ajar Indicator(s) |
ENGINE OIL LOW - CHECK LEVEL - 36 | Engine Oil Indicator(s) |
SERVICE STABILITY SYSTEM - 54 | Stability System Indicator(s) |
STABILITY SYSTEM ACTIVE - 55 | Stability System Indicator(s) |
TRACTION CONTROL SYSTEM ACTIVE - 91 | Traction Control Indicator(s) |
TRUNK AJAR - 24 | Trunk Ajar Indicator |
WINDSHIELD WASHER FLUID LOW - 25 | Washer Fluid Indicator(s) |
ABS Indicator
The IPC illuminates the ABS indicator when any of the following occur:
| • | The electronic brake control module (EBCM) detects a malfunction with the antilock brake system. The IPC receives a class 2 message from the EBCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| The IPC illuminates the TRAC OFF indicator. |
| • | The IPC detects a loss of class 2 communications with the EBCM and the discrete back-up ABS indicator signal is open. |
| • | The IPC performs the displays test at the start of each ignition cycle. |
Air Bag Indicator(s)
The IPC illuminates the air bag indicator when any of the following occur:
| • | The inflatable restraint sensing and diagnostic module (SDM) detects a malfunction with the supplemental inflatable restraint system. The IPC receives a class 2 message from the SDM requesting illumination. The IPC sends a class 2 message to the SDM indicating the indicator status. |
| The IPC sends a class 2 message to the BCM in order to sound an audible warning. |
| • | The IPC performs the displays test at the start of each ignition cycle. The IPC flashes the air bag indicator 7 times. |
| • | The IPC detects a loss of class 2 communications with the SDM. |
Brake System Indicator
The IPC illuminates the brake indicator when any of the following occur:
| • | The IPC detects that the park brake is engaged. If the vehicle travels 3-15.2 m (10-50 ft) with the park brake engaged, the IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The IPC detects a low brake fluid condition. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
| • | The IPC detects a loss of class 2 communications with the EBCM and the discrete back-up ABS indicator signal circuit is high. |
Charging System Indicator(s)
The IPC illuminates the charging system indicator when any of the following occur:
| • | The PCM detects a malfunction in the charging system. The IPC receives a class 2 message from the PCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The IPC performs the displays test at the start of each ignition cycle. |
Check Gages Indicator(s)
CHECK GAGES
The head up display (HUD) illuminates the CHECK GAGES indicator as determined by the IPC. The HUD receives a signal from the IPC requesting illumination. The HUD illuminates the CHECK GAGES indicator when the IPC illuminates any of the following indicators:
| • | ABS |
| • | Air bag |
| • | BRAKE |
| • | Charging system |
| • | Engine coolant temperature |
| • | Low fuel |
| • | Low oil pressure |
| • | MIL |
| • | TRACTION OFF |
The HUD also illuminates the CHECK GAGES indicator when either of the following occur:
| • | The vehicle moves a minimum of 6 meters (20 feet) with the trunk open. The DIC also displays the TRUNK AJAR -- 24 message. |
| • | The vehicle moves a minimum of 6 meters (20 feet) with any of the doors open. The DIC also displays the DOOR AJAR -- 23 message. |
Cruise Control Indicator
The IPC illuminates the CRUISE indicator when any of the following occur:
| • | The PCM detects that the cruise control is requested. The IPC receives a class 2 message from the PCM requesting illumination. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
Door Ajar Indicator(s)
DOOR AJAR - 23
Each door module monitors the associated door ajar switch signal circuit. The IPC receives a class 2 message from the BCM indicating that a door ajar switch is active. The IPC sends a class 2 message to the BCM to activate an audible warning when the vehicle moves a minimum of 6 meters (20 feet) with a door open. The IPC calculates the distance based on a class 2 message from the PCM indicating the vehicle speed.
Electrical System Indicator(s)
SERVICE VEHICLE SOON
The IPC illuminates the SERVICE VEHICLE SOON indicator when any of the following occur:
| • | The PCM detects certain non-emissions related failures. The IPC receives a class 2 message from the PCM requesting illumination. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
| • | The IPC detects no class 2 communications with the vehicle. |
Engine Coolant Indicator(s)
The IPC illuminates the hot coolant temperature indicator when the IPC determines that the coolant temperature is greater than 124°C (255°F). The IPC receives a class 2 message from the PCM indicating the coolant temperature. The IPC sends a class 2 message to the BCM in order to activate an audible warning.
Engine Oil Indicator(s)
CHANGE ENGINE OIL SOON - 82
The IPC illuminates the CHANGE ENGINE OIL SOON - 82 indicator in the DIC when the PCM determines that the engine oil life is less than 11 percent. The IPC receives a class 2 message from the PCM requesting illumination. Once the oil is changed, perform the engine oil monitor reset procedure in order to clear the CHANGE ENGINE OIL SOON indicator. Refer to GM Oil Life System Resetting in Maintenance and Lubrication.
ENGINE OIL LOW -- CHECK LEVEL - 36
The IPC illuminates the ENGINE OIL LOW -- CHECK LEVEL - 36 indicator in the DIC when the PCM detects a low engine oil level condition. The system only monitors the oil level for a brief period between key on and engine crank. The IPC receives a class 2 message from the PCM requesting illumination.
Low Oil Pressure
The IPC illuminates the low oil pressure indicator when any of the following occur:
| • | The PCM detects that the oil pressure is low (signal circuit is low). The IPC receives a class 2 message from the PCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
Fasten Safety Belt Indicator
The BCM illuminates the fasten safety belt indicator in the IPC when any of the following occur:
| • | The body control module (BCM) detects that the driver seat belt is unbuckled. The BCM illuminates the indicator for 20 seconds and then flashes the indicator for 55 seconds. The BCM activates an audible warning. |
| • | The BCM performs the displays test at the start of each ignition cycle. |
Fuel System Indicator(s)
Low Fuel
The IPC illuminates the low fuel indicator when any of the following occur:
| • | The IPC determines that the fuel level is less than 16 percent. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
km/h and MPH Indicator(s)
km/h
The IPC illuminates the km/h indicator when the IPC detects that metric units have been requested by monitoring the signal circuit of the Eng/Met switch. The IPC sends a signal to the head up display (HUD) indicating the requested units. The HUD also illuminates the appropriate indicator.
MPH
The IPC illuminates the MPH indicator when the IPC detects that English units have been requested by monitoring the signal circuit of the Eng/Met switch. The IPC sends a signal to the head up display (HUD) indicating the requested units. The HUD also illuminates the appropriate indicator.
Lighting System Indicator(s)
High Beam
The lighting control module (LCM) illuminates the high beam indicator in the IPC when the LCM detects that the high beams are requested. The IPC sends a class 2 message to the BCM indicating the status of the indicator.
High Beam (with HUD)
The head up display (HUD) illuminates the high beam indicator when the IPC sends a signal requesting illumination.
Turn Signals
The left and right turn signal indicators are hard wired to the turn signal switch and the hazard switch. The turn signal indicator illuminates when the turn signal lamps supply voltage circuit is active. If the IPC determines that the turn signal is active for more than 1.29 km (0.8 mile), the IPC sends a class 2 message to the BCM in order to activate an audible warning.
Turn Signals (with HUD)
The head up display (HUD) illuminates the turn signal indicators when the IPC sends a signal requesting illumination.
Malfunction Indicator Lamp (MIL)
The PCM illuminates the MIL (service engine soon or check engine) when the following occurs:
| • | The PCM detects a malfunction in the emissions system. |
| • | The PCM performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
| • | The ignition is on, with the engine off. |
Stability System Indicators
SERVICE STABILITY SYSTEM - 54
The IPC illuminates the SERVICE STABILITY SYSTEM - 54 indicator in the DIC when the electronic brake control module (EBCM) detects a malfunction in the enhanced stability system. The IPC receives a class 2 message from the EBCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning.
STABILITY SYSTEM ACTIVE - 55
The IPC illuminates the STABILITY SYSTEM ACTIVE - 55 indicator in the DIC when the electronic brake control module (EBCM) detects that the enhanced stability system, the ABS system, or the traction control system is active. The IPC receives a class 2 message from the EBCM requesting illumination.
Theft System Indicator(s)
Security
The remote control door lock receiver (RCDLR) illuminates the SECURITY indicator in the IPC as determined by the vehicle theft deterrent (VTD) system and the content theft deterrent (CTD) system.
| • | The VTD system requests the IPC to illuminate the indicator only when the ignition switch is ON. The VTD system uses the indicator as a status indicator. |
| • | The CTD system requests the IPC to illuminate the indicator only when the ignition switch is OFF. The CTD system uses the indicator in order to identify system status. |
Traction Control System Indicator
Reference numbers are used in conjunction with a DIC warning message on export vehicles only.
TRAC OFF
The IPC illuminates the TRAC OFF indicator when any of the following occur:
| • | The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning. |
| • | The EBCM detects that the traction control switch is pressed. The IPC receives a class 2 message from the EBCM indicating the switch status. |
| • | The IPC receives a class 2 message from the EBCM requesting illumination of the ABS indicator. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds. |
TRACTION CONTROL SYSTEM ACTIVE - 91
The IPC illuminates the TRACTION CONTROL SYSTEM ACTIVE - 91 message in the DIC when the electronic brake control module (EBCM) detects that the traction control system is active. The IPC receives a class 2 message from the EBCM requesting illumination.
Tire Pressure Indicator(s)
CHECK TIRE PRESSURE - 144
The IPC illuminates the CHECK TIRE PRESSURE - 144 indicator in the DIC when the electronic brake control module (EBCM) detects low pressure in any of the four tires. The IPC receives a class 2 message from the electronic brake control module (EBCM) requesting illumination. Once the tire pressures are properly adjusted, perform the tire pressure monitor reset procedure in order to clear the CHECK TIRE PRESSURE indicator. Refer to Tire Pressure Monitor Procedure in Tire Pressure Monitoring.
TRUNK AJAR - 24
The IPC illuminates the TRUNK AJAR - 24 indicator in the DIC when the body control module (BCM) detects that the trunk is ajar or open. The IPC receives a class 2 message from the BCM requesting illumination. The IPC sends a class 2 message to the BCM to activate an audible warning when the vehicle moves a minimum of 6 meters (20 feet) with the trunk open. The IPC calculates the distance based on a class 2 message from the PCM indicating the vehicle speed.
Washer Fluid Indicator
WINDSHIELD WASHER FLUID LOW - 25
The IPC illuminates the WINDSHIELD WASHER FLUID LOW - 25 indicator in the DIC when the BCM detects a low washer fluid condition (signal circuit is low) for greater than 30 seconds. The DIC receives a class 2 message from the BCM requesting illumination.
