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Chevrolet Silverado / GMC Sierra. Manual - part 2442
SERVICE TRACTION CONTROL
(With JL4) or ABS Description and
Operation (Without JL4)
SERVICE TRAILER BRAKE SYSTEM
Refer to Trailer Brake Controls
Description and Operation
SERVICE TRANSMISSION
Refer to Transmission Indicators and
Messages (TCM) for the 4L60-E/4L65-
E/4L70-E transmission
or
Transmission Indicators and Messages for
the 6L50/6L80/6L90 transmission
or
Transmission Indicators and Messages for
the Allison transmission
SHIFT INHIBITED SELECT N TO RESET
Refer to Transmission Indicators and
Messages (TCM) for the 4L60-E/4L65-
E/4L70-E transmission
or
Transmission Indicators and Messages for
the 6L50/6L80/6L90 transmission
or
Transmission Indicators and Messages for
the Allison transmission
STABILITRAK OFF
Refer to ABS Description and Operation
(With JL4) or ABS Description and
Operation (Without JL4)
STARTING DISABLED THEFT
PROBLEM
Refer to Content Theft Deterrent (CTD)
Description and Operation
STARTING DISABLED SERVICE
THROTTLE
Refer to Throttle Actuator Control (TAC)
System Description
THEFT ATTEMPTED
Refer to Content Theft Deterrent (CTD)
Description and Operation
TIGHTEN GAS CAP
Refer to Indicator/Warning Message
Description and Operation
TIRE LEARNING ACTIVE
Refer to Tire Pressure Monitor
Description and Operation
TRACTION CONTROL OFF
Refer to ABS Description and Operation
(With JL4) or ABS Description and
Operation (Without JL4)
2008 Chevrolet Silverado 1500
2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
CHANGE ENGINE OIL SOON
The instrument panel cluster (IPC) illuminates the CHANGE ENGINE OIL SOON message
when the engine control module (ECM) determines that the engine oil should be changed. The
IPC receives a class 2 message from the ECM requesting illumination. Once the oil is changed,
perform the engine oil monitor reset procedure in order to clear the Change Engine Oil indicator.
Refer to GM Oil Life System Resetting .
ENGINE OIL LOW
The instrument panel cluster (IPC) illuminates the ENGINE OIL LOW message in the driver
information center (DIC) when the engine control module (ECM) detects a low engine oil level
condition. The ECM only monitors the oil level switch signal circuit for a brief period between
key on and ignition crank. The IPC receives a class 2 message from the ECM requesting
illumination.
TRAILER CONNECTED
Refer to Trailer Brake Controls
Description and Operation
TRAILER NOT CONNECTED
Refer to Trailer Brake Controls
Description and Operation
TRANSMISSION HOT IDLE ENGINE
Refer to Transmission Indicators and
Messages (TCM) for the 4L60-E/4L65-
E/4L70-E transmission
or
Transmission Indicators and Messages for
the 6L50/6L80/6L90 transmission
or
Transmission Indicators and Messages for
the Allison transmission
TURN SIGNAL ON
Refer to Exterior Lighting Systems
Description and Operation
VEHICLE OVERSPEED
Refer to Indicator/Warning Message
Description and Operation
VEHICLE SPEED LIMITED
Refer to Indicator/Warning Message
Description and Operation
WASHER FLUID LOW ADD FLUID
Refer to Wiper/Washer System
Description and Operation
WATER IN FUEL SERVICE REQUESTED
Refer to Indicator/Warning Message
Description and Operation
2008 Chevrolet Silverado 1500
2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
FUEL LEVEL LOW
The instrument panel cluster (IPC) illuminates the FUEL LEVEL LOW message in the driver
information center (DIC) and the LOW FUEL indicator when the IPC detects that the fuel level
is less than a pre-determined value. The IPC receives a class 2 message from the engine control
module (ECM) indicating fuel level percent.
KM/H
The instrument panel cluster (IPC) displays the km/h indicator when the cluster detects that
Metric units have been requested.
MPH
The instrument panel cluster (IPC) displays the MPH indicator when the cluster detects that
English units have been requested.
OIL PRESSURE LOW
The instrument panel cluster (IPC) illuminates the OIL PRESSURE LOW message in the driver
information center (DIC) when the engine control module (ECM) detects a low oil pressure
condition with the signal circuit low. The IPC receives a class 2 message from the ECM
requesting illumination.
PROGRAM CLUSTER
The instrument panel cluster (IPC) illuminates the PROGRAM CLUSTER message in the driver
information center (DIC) when the IPC needs to be programmed. Refer to Instrument Cluster
Programming and Setup for setup and programming.
VEHICLE OVERSPEED
The instrument panel cluster (IPC) illuminates the VEHICLE OVERSPEED indicator when the
IPC detects that the vehicle speed is more than 120 km/h (75 mph).
VEHICLE SPEED LIMITED
The instrument panel cluster (IPC) illuminates the VEHICLE SPEED LIMITED message in the
driver information center (DIC).
TIGHTEN GAS CAP
The instrument panel cluster (IPC) illuminates the TIGHTEN GAS CAP message in the driver
information center (DIC) when the engine control module (ECM) detects a low fuel pressure
2008 Chevrolet Silverado 1500
2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
condition. The IPC receives a class 2 message from the ECM requesting illumination.
UPSHIFT INDICATOR
The instrument panel cluster (IPC) illuminates the upshift indicator when the powertrain control
module (PCM) determines that the vehicle should be shifted to the next higher gear. The IPC
receives a class 2 message from the PCM requesting illumination.
WATER IN FUEL SERVICE REQUIRED
The instrument panel cluster (IPC) illuminates the WATER IN FUEL message in the driver
information center (DIC) when the engine control module (ECM) detects a low signal from the
water in fuel sensor. The IPC receives a serial data message from the ECM requesting
illumination.
INSTRUMENT CLUSTER DESCRIPTION AND OPERATION
Displays Test
Certain instrument panel cluster (IPC) features are tested when the ignition is turned on in order
to verify the features are working properly. The following occurs at key up:
The air bag indicator flashes 7 times (not IPC controlled).
The ABS indicator illuminates briefly.
The battery indicator illuminates briefly.
The brake indicator illuminates briefly.
The coolant temperature indicator illuminates briefly.
The cruise engage indicator illuminates briefly.
The engine oil pressure indicator illuminates briefly.
The malfunction indicator lamp (MIL) illuminates briefly (not IPC controlled).
The seat belt indicator illuminates for 70 seconds or until the driver seat belt is latched (not
IPC controlled).
The security indicator illuminates briefly.
The tire pressure low indicator illuminates briefly.
The vehicle dynamics caution (VDC) indicator illuminates briefly.
All segments of the driver information center (DIC) illuminate briefly.
All odometer segments illuminate briefly.
The PRNDL segment illuminates briefly.
2008 Chevrolet Silverado 1500
2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
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