Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition, and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after awhile, your emission controls
may not work as well, your fuel economy may not
be as good, and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.Notice:Modi cations made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and may cause this light to come on.
Modi cations to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 5-3.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is
not running. If the light does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
•Light Flashing— A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Diagnosis and service may be required.
•Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
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If the Light is Flashing
The following may prevent more serious damage to
your vehicle:
•Reducing vehicle speed
•Avoiding hard accelerations
•Avoiding steep uphill grades
•If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible
If the light stops flashing and remains on steady, see “If
the Light Is On Steady” following.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart
the engine. If the light remains on steady, see “If
the Light Is On Steady” following. If the light is still
flashing, follow the previous steps, and see your dealer
for service as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. SeeFilling the Tank on page 5-8. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
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Oil Pressure Gage
The oil pressure gage shows the engine oil pressure
in psi (pounds per square inch) when the engine
is running. Canadian vehicles indicate pressure in
kPa (kilopascals).
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused
by a low oil level or other oil-related problems. See your
dealer for service immediately. United States
Canada
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Reduced Engine Power Light
This light is displayed
when a noticeable
reduction in the vehicle’s
performance may occur.
The vehicle may be driven at a reduced speed when
the reduced engine power light is on but acceleration
and speed may be reduced. The performance may
be reduced until the next time you drive your vehicle. If
this light stays on, see your dealer as soon as
possible for diagnosis and repair.
This light may also come on if there is a problem
with the Throttle Actuator Control (TAC) system.
If this happens, take the vehicle in for service as
soon as possible.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
Check Gages Warning Light
The Check Gages light will
come on briefly when you
are starting the engine.
If the light comes on and stays on while you are driving,
check your coolant temperature and engine oil
pressure gages to see if they are in the warning zones.
SeeEngine Coolant Temperature Gage on page 3-32
andOil Pressure Gage on page 3-36.
When the fuel level is low in your vehicle, the check
gages light will come on and a chime will sound. You will
also see a FUEL LEVEL LOW message on the DIC.
SeeDIC Warnings and Messages on page 3-45
for more information.
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You can only drive for a short time with the reading in
either warning zone. If you must drive while the gage is in
the warning zone, turn off all unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Delivered Torque Gage
This gage (B) is located in the center of the
gage package.
This gage displays the delivered engine torque in
pounds per square foot (U.S.) and Newton-meters
(Canada).
Outside Temperature Gage
This gage (C) is located on the right side of the
gage package.
This gage displays the outside temperature in
Fahrenheit (U.S.) and Celsius (Canada).
A short delay in temperature reading may occur under
certain conditions, this is normal. United States
Canada
United StatesCanada
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Trip Information
3
(Trip Information):Press this button to scroll
through the odometer, TRIP A, TRIP B, TIMER,
and OUTSIDE TEMP. (temperature).
Odometer
Press the trip information button until the odometer
appears on the display. This shows the total distance
the vehicle has been driven in either miles or kilometers.
Trip Odometer
Press the trip information button until TRIP A or TRIP B
is displayed. This shows the current distance traveled
since the last reset for each trip odometer in either miles
or kilometers. Both odometers can be used at the
same time.
Each trip odometer can be reset to zero separately by
pressing and holding the select button while the desired
trip odometer is displayed.
Timer
The DIC can be used as a stopwatch. Press the trip
information button until TIMER is displayed. Press the
select button to start the timer. The display will show theamount of time that has passed since the timer was last
reset, not including time the ignition is off. Time will
continue to be counted as long as the ignition is on, even
if another display is being shown on the DIC. The
timer will record up to 99 hours, 59 minutes and
59 seconds (99:59:59) after which the display will return
to zero.
To stop the counting of time, press the select button
briefly while TIMER is displayed.
To reset the timer to zero, press and hold the select
button while TIMER is displayed until the timer returns
to zero.
Outside Air Temperature
Press the trip information button until OUTSIDE TEMP.
is displayed. This display shows the outside air
temperature in either degrees Fahrenheit (°F) or degrees
Celsius (°C). If there is a problem with the system that
controls the temperature display, the numbers will
be replaced with dashes. If this occurs, have the vehicle
serviced by your GM dealer.
Under certain conditions, a delay in updating the
temperature is normal.
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Depress Brake
This message will be displayed on the DIC when you try
to raise or lower the convertible top without first
pressing the brake pedal. The brake pedal must be
pressed in order to operate the convertible top.
SeeConvertible Top on page 2-45for more information.
Pressing the brake pedal will clear the message, or
you can press the select button to acknowledge
and clear the message from the DIC display.
Driver Door Ajar
This message will be displayed on the DIC and a chime
will sound when the driver’s door is not closed
completely. Stop the vehicle, check the door for
obstacles, and close the door again. Fully closing the
driver’s door will clear this message from the display, or
you can press the select button to acknowledge the
message and clear it from the DIC display.
Engine Coolant Hot Idle Engine
Notice:If your engine catches re because you
keep driving with no coolant, your vehicle can
be badly damaged. The costly repairs would not be
covered by your warranty.
If the cooling system temperature becomes too hot, this
message will appear in the DIC and you will hear a
chime. Stop the vehicle and let the engine idle inPARK (P) to allow the coolant to reach a safe
temperature. You may need to add more coolant to your
vehicle before driving again. SeeEngine Coolant on
page 5-24andEngine Coolant Temperature Gage
on page 3-32for more information. This message will
clear from the DIC display when the coolant temperature
drops to a safe operating temperature.
Engine Overheated Stop Engine
Notice:If your engine catches re because you
keep driving with no coolant, your vehicle can
be badly damaged. The costly repairs would not be
covered by your warranty.
If your engine is overheated, this message will be
displayed on the DIC. Stop the vehicle as soon as
possible and do not drive it until the engine cools down.
You may need to add more coolant to your vehicle
before driving again. SeeEngine Overheating on
page 5-27andEngine Coolant Temperature Gage on
page 3-32for more information. This message will clear
from the DIC display when the coolant temperature
drops to a safe operating temperature.
Flip Hall Switch Fault
This message will be displayed on the DIC when trying
to raise or lower the convertible top and there is a
fault with this switch. If the message persists, see your
GM dealer for service.
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Fuel Level Low
If the fuel level is low in the vehicle’s gas tank, this
message will appear on the DIC and you will hear a
chime. You will also see the check gages warning light
on the instrument panel cluster. SeeCheck Gages
Warning Light on page 3-38for more information. Refuel
as soon as possible. SeeFilling the Tank on page 5-8
andFuel Gage on page 3-39for more information. Press
the select button to acknowledge and clear the
message from the display.
Hdr (Header) Latch Switch Fault
This message will be displayed on the DIC when trying
to raise or lower the convertible top and there is a
fault with this switch. If the message persists, see your
GM dealer for service.
Manually Open Tonneau
This message will be displayed on the DIC when trying
to raise or lower the convertible top while the
convertible top and roof tonneau are where the system
cannot verify their position. The roof system may
need to be restored manually to a stable position by
fully opening the roof tonneau and boot cover panel. See
Convertible Top on page 2-45for more information.
Oil Pressure Low Stop Engine
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
If the oil pressure is low in your vehicle, this message
will be displayed on the DIC. Stop the vehicle as
soon as possible and do not drive it until the cause of
the low oil pressure has been corrected. Check your oil
as soon as possible and have your vehicle serviced
by your GM dealer. SeeEngine Oil on page 5-13andOil
Pressure Gage on page 3-36for more information.
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