The indicator description and operation uses generic indicator names. Refer to the table below for the indicators that are available on this vehicle:
Vehicle Indicator Name | Indicator Description Title |
|---|---|
ABS symbol | ABS Indicator |
Air Bag symbol | Air Bag Indicator(s) |
ANTI-LOCK | ABS Indicator |
Brake symbol | Brake System Indicator(s) |
BRAKE | Brake System Indicator(s) |
CHANGE OIL | Engine Oil Indicator(s) |
Charging System symbol | Charging System Indicator(s) |
Check Engine symbol | Malfunction Indicator Lamp (MIL) |
CRUISE | Cruise Control Indicator |
Engine Coolant Temperature symbol | Engine Coolant Indicator(s) |
Engine Oil Pressure symbol | Engine Oil Indicator(s) |
Fasten Safety Belt symbol | Fasten Safety Belt Indicator |
High Beam symbol | Lighting System Indicator(s) |
Low Engine Coolant symbol | Engine Coolant Indicator(s) |
LOW OIL | Engine Oil Indicator(s) |
LOW TRAC | Traction Control System Indicators |
LOW WASHER FLUID | Washer Fluid Indicator(s) |
PCS | Traction Control System Indicator(s) |
SECURITY | Theft System Indicator(s) |
SERVICE ENGINE SOON | Malfunction Indicator Lamp (MIL) |
SERVICE VEHICLE SOON | Electrical System Indicator(s) |
TRAC OFF | Traction Control System Indicator(s) |
Turn Signal symbols | Lighting System Indicator(s) |
ABS Indicator
The IPC illuminates the ABS indicator when the following occurs:
| • | 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 performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
| • | The IPC detects a loss of class 2 communications with the EBCM. |
Air Bag Indicator
The IPC illuminates the air bag indicator when the following occurs:
| • | 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 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 the following occurs:
| • | The body control module (BCM) detects that the park brake is engaged. The IPC receives a class 2 message from the BCM requesting illumination. If the vehicle is shifted out of park with the park brake engaged, the BCM activates an audible warning. |
| • | The IPC detects a low brake fluid condition (signal circuit is low). |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
Charging System Indicator
The IPC illuminates the charge indicator in the message center when the following occurs:
| • | The PCM detects that the generator output is less than 11 volts or greater than 16 volts. The IPC receives a class 2 message from the PCM requesting illumination. |
| • | The IPC determines that the system voltage is less than 11 volts or greater than 16 volts. The IPC receives a class 2 message from the body control module (BCM) indicating the system voltage. |
| • | The IPC 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. |
Cruise Control Indicator
The IPC illuminates the CRUISE indicator when the PCM detects that the cruise control is requested. The IPC receives a class 2 message from the PCM requesting illumination.
Electrical System Indicator
The IPC illuminates the SERVICE VEHICLE SOON indicator in the message center when the following occurs:
| • | The body control module (BCM) detects certain malfunctions in the lighting system or the horn system. The IPC receives a class 2 message from the BCM requesting illumination. |
| • | The PCM detects certain non-emissions related malfunctions. The IPC receives a class 2 message from the PCM requesting illumination. |
Engine Coolant Indicator(s)
Engine Coolant Temperature
The IPC illuminates the engine coolant temperature indicator when the IPC determines that the coolant temperature is greater than 123°C (253°F). The IPC receives a class 2 message from the PCM indicating the coolant temperature.
Low Engine Coolant
The IPC illuminates the low engine coolant indicator when the IPC detects a low coolant level condition (signal circuit is low).
Engine Oil Indicator(s)
CHANGE OIL
The IPC illuminates the CHANGE OIL indicator when the following occurs:
| • | The PCM determines that the engine oil should be changed. 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 OIL indicator. Refer to GM Oil Life System Resetting in Maintenance and Lubrication. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
Engine Oil Pressure
The IPC illuminates the engine oil pressure indicator when the following occurs:
| • | PCM detects low oil pressure (signal circuit is low). 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 3 seconds. |
LOW OIL
The IPC illuminates the LOW OIL indicator when the following occurs:
| • | The PCM detects a low engine oil level condition (signal circuit is high). 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. The LOW OIL indicator illuminates for 60 seconds at the start of each ignition cycle when the condition is present. |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
Fasten Safety Belt Indicator
The IPC illuminates the fasten safety belt indicator when the following occurs:
| • | The body control module (BCM) detects that the driver seat belt is unbuckled. The IPC receives a class 2 message from the BCM requesting illumination. The IPC illuminates the indicator for 20 seconds and then flashes the indicator for 55 seconds. The BCM also activates an audible warning. |
| • | The IPC detects a loss of class 2 communications with the BCM. |
Lighting System Indicator(s)
High Beam
The high beam indicator is hard wired to the headlamp switch. The high beam indicator illuminates when the headlamp switch is in the high position (signal circuit is low).
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. The body control module (BCM) is also hard wired to the turn signal switch. If the BCM determines that the turn signal flasher signal circuit is active for more than 1.2 km (0.75 mi), the BCM activates an audible warning.
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. |
Theft System Indicator(s)
SECURITY
The IPC illuminates the SECURITY indicator as determined by the vehicle theft deterrent (VTD) system. The IPC receives a class 2 message from the BCM requesting illumination.
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 malfunction indicator.
Traction Control System Indicator(s)
LOW TRAC
The IPC illuminates the LOW TRAC indicator when the electronic brake control module (EBCM) detects a traction control event. The IPC receives a class 2 message from the EBCM requesting illumination.
PCS
The IPC illuminates the PCS indicator when the electronic brake control module (EBCM) detects a malfunction in the precision control system (PCS). The IPC receives a class 2 message from the EBCM requesting illumination of both the PCS indicator and the TRAC OFF indicator. The EBCM disables both the precision control system and the traction control system.
TRAC OFF
The IPC illuminates the TRAC OFF indicator when the following occurs:
| • | The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system or the precision control system (PCS). The IPC receives a class 2 message from the EBCM requesting illumination. |
| • | The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a class 2 message to the EBCM in order to disable traction control. The IPC receives a class 2 message from the EBCM requesting illumination. |
Washer Fluid Indicator
The IPC illuminates the low washer fluid indicator when the following occurs:
| • | The IPC detects a low washer fluid condition (signal circuit is low). |
| • | The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds. |
