Certain instrument panel cluster (IPC) features are tested when the ignition is turned ON in order to verify that the features are working properly. The following indicators illuminate briefly at key up:

Refer to Indicator/Warning Message Description and Operation .

The engine control module (ECM)/powertrain control module (PCM) sends coolant temperature as determined by the coolant temperature sensor to the instrument panel cluster (IPC) via class 2. The IPC displays the engine coolant temperature with the gage. The engine coolant temperature (ECT) gage defaults to cold (0°) or below if:

The engine control module (ECM)/powertrain control module (PCM) sends fuel level percent to the instrument panel cluster (IPC) via class 2. The IPC displays the fuel level as determined by the ECM/PCM. The fuel gage defaults to E (empty) if:

When the fuel level is less than 10 percent, the LOW FUEL message illuminates.

The message center is located in the instrument panel cluster (IPC) at the bottom of the speedometer. It is a 2-line display that gives the odometer, trip odometer, warning, and information messages.

With the key in adaptive cruise control (ACC), the odometer and trip odometer are shown. With the key in RUN, the entire message center liquid crystal display (LCD) is commanded on for a few seconds to check the display segments.

Information or warning messages show in the top line of the message center. Information messages have a higher priority than the odometer. If there are several messages, each message will be shown for a few seconds before the next message is displayed. The list of messages repeats. Each message can be cleared for that key cycle by momentarily pressing the trip reset button when the message is displayed. Several messages will also cause a chime to sound as a driver alert.

When the ignition key is OFF, the odometer and trip odometer can be displayed by pressing the trip reset stem once. The message center will show both odometer readings for a few seconds, then go OFF.

The odometer shows how far the vehicle has been driven, in either miles (domestic) or kilometers (export). The odometer is shown in the top line of the message display when any of the following occur:

Odometer readings are displayed in the instrument panel cluster (IPC) based on a class 2 message from the body control module (BCM). The engine control module (ECM)/powertrain control module (PCM) calculates the distance traveled from the vehicle speed sensor (VSS) input. The BCM receives a class 2 message from the ECM/PCM and stores the current mileage.

The IPC stores the last valid odometer reading from the BCM in non-volatile memory. When a new valid odometer reading is received from the BCM, the IPC will update the display and store the new reading.

The IPC also receives class 2 messages from the BCM regarding vehicle identification number (VIN) and vehicle content information. Valid information is stored in non-volatile memory at the first key-up with a new IPC. If the VIN or option content do not match the stored information, the odometer will display ERROR.

From the odometer display, momentarily pressing the trip reset button toggles to the oil life reset mode in the instrument panel cluster (IPC). Pressing and holding the button, while OIL LIFE is displayed will reset the oil life monitor in the engine control module (ECM)/powertrain control module (PCM) with a class 2 message. The ECM/PCM responds with a class 2 message to the IPC.

The instrument panel cluster (IPC) displays the vehicle speed based on the information from the engine control module (ECM)/powertrain control module (PCM). The ECM/PCM calculates the vehicle speed based on the class 2 message indicating the wheel reference speed from the electronic brake control module (EBCM) if:

The speedometer defaults to 0 km/h (0 mph) if the IPC detects a loss of class 2 communications with both the ECM/PCM.

The instrument panel cluster (IPC) displays the engine speed as determined by the engine control module (ECM)/powertrain control module (PCM) via a class 2 message. The tachometer will default to 0 RPM if:

Trip odometer readings are calculated by the instrument panel cluster (IPC) based on odometer reading received from a class 2 message from the body control module (BCM). The trip odometer is shown in the bottom line of the message display whenever the odometer is displayed. To reset the trip odometer, press and hold the trip reset stem for about 2 seconds, until the trip odometer shows zero.

The boost gage is a measure of the engine manifold air pressure. The powertrain control module (PCM) sends a PWM signal to the boost gage indicating the manifold air pressure. The boost gage displays the engine air intake above and below the ambient pressure. The PCM controls the engine boost pressure with the boost control solenoid. The engine boost system pumps more air than the engine would normally use into the intake manifold. The excess air pumped into the intake manifold, creates the engine boost effect. The maximum boost pressure is about 83 kPa (12 psi).

The boost gage performs a self test by the gage dial moving to 0 kPa (0 psi) when the ignition is turned ON and the boost gage is also turned ON. Refer to Supercharger Description and Operation or to Boost Control System Description in engine controls 2.0 L.

The engine RPM indicators are a series of LEDs that are set to illuminate and indicate to the driver when the engine attains a certain engine RPM. The indicators are factory preset to illuminate at certain engine RPM ranges. The total engine RPM range available to be set is 0 - 8500 RPM and there are only three possible RPM settings available for the various transmission ranges. The factory RPM presets can be changed to any prefered RPM settings but are always available at the push of a button. Pushing the reset button reverts the RPM indicator to the factory presets. The factory presets are the default settings for the engine RPM indicator. The engine RPM indicator uses the engine speed signal circuit from the PCM to determine when the engine has attained the preset RPM.

The engine RPM indicator performs a self test when the ignition is turned ON and the engine RPM indicator switch is turned ON. Refer to Supercharger Description and Operation or to Boost Control System Description in engine controls 2.0 L.