
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, mis®ring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to ®x
any mechanical or electrical problems that may
have developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the check
engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
3-35

Auxiliary Gage Package
A. Voltmeter Gage
B. Delivered Torque Gage
C. Outside Temperature Gage
Your vehicle may have an auxiliary gage package
located at the front of the center console.
Voltmeter Gage
This gage (A) is located
on the left side of the
gage package.
When your engine is not running, but the ignition is in
RUN, this gage shows your battery's state of charge in
DC volts.
When the ignition is on and the engine is running, the
gage shows the condition of the charging system.
Readings between the low and high warning zones
indicate the normal operating range.
Readings in the low warning zone may occur when a
large number of electrical accessories are operating in
the vehicle and the engine is left at an idle for an
extended period. This condition is normal since the
charging system is not able to provide full power
at engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
3-40

Personalization
q
(Personalization):Press this button to access
the vehicle personalization menu and customize
the personalization settings on your vehicle. See
DIC
Vehicle Personalization on page 3-52for more
information.
Select
r
(Select): Press this button to reset certain
DIC functions, acknowledge DIC warning messages and
clear them from the DIC, and set your personalization
settings.
DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct the
condition. Multiple messages may appear one after
another. Some messages may not require immediate
action but you should press the select button to
acknowledge that you received the message and
clear it from the display. Some messages cannot be
cleared from the display because they are more urgent. These messages require action before they can be
removed from the DIC display. The following are
the possible messages that can be displayed and some
information about them.
Battery Not Charging
If the battery is not charging during operation, this
message will appear on the DIC. The charging system
light may also be displayed on the instrument panel
cluster. See
Charging System Light on page 3-29for more information. Driving your vehicle when
the battery is not charging properly can drain the
battery. Have the electrical system checked by your
GM dealer as soon as possible. Press the select button
to acknowledge this message and clear it from the
DIC display.
Battery Voltage Too High
This message will be displayed when the battery
voltage is higher than normal and you try to raise or
lower the convertible top. The charging system light may
also be displayed on the instrument panel cluster.
See
Charging System Light on page 3-29for more
information. Press the select button to acknowledge the
message and clear it from the DIC display.
3-45

Battery Voltage Too Low
This message will be displayed when the battery
voltage is lower than normal and you try to raise or
lower the convertible top. The charging system light
may also be displayed on the instrument panel cluster.
See
Charging System Light on page 3-29for more
information. Press the select button to acknowledge the
message and clear it from the DIC display.
Cargo Cover Ajar
This message will be displayed when trying to open
or close the convertible top while the cargo cover
is open. Make sure the cargo cover is fully closed
before trying to open or close the convertible top.
This message will clear itself from the DIC once the
cargo cover is closed.
Change Trans (Transmission) Fluid
(Automatic Transmission Only)
If your transmission ¯uid in your vehicle needs to
be changed, this message will appear on the DIC.
See
Automatic Transmission Fluid on page 5-21andScheduled Maintenance on page 6-4for more
information.
Check Oil Level
If the oil level in the vehicle is low, this message will
appear on the DIC. Check the oil level and add oil
as necessary. See
Engine Oil on page 5-13for more
information. Press the select button to acknowledge this
message and clear it from the DIC display.
Depress Brake
This message will be displayed on the DIC when you
try to raise or lower the convertible top without ®rst
pressing the brake pedal. The brake pedal must
be pressed in order to operate the convertible top.
See
Convertible Top on page 2-51for 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.
3-46

Passenger Door Ajar
If the passenger's door is not fully closed, this message
will appear on the display and you will hear a chime.
Stop the vehicle, check the door for obstacles, and close
the door again. Fully closing the passenger'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.
Reduce Speed
This message will be displayed on the DIC when trying
to raise or lower the convertible top while the vehicle
is in motion. Stop the vehicle and continue pressing the
brake pedal before trying to raise or lower the top
again. See
Convertible Top on page 2-51for more
information. The message will clear from the display
once the vehicle is stopped, or you can press the select
button to acknowledge this message and clear it from
the DIC display.
Rfa X Battery Low
If a remote keyless entry transmitter battery is low, this
message will appear on the DIC. The battery needs
to be replaced in the transmitter. Press the select button
to acknowledge this message and clear it from the
DIC display. See ªBattery Replacementº under
Remote
Keyless Entry System Operation on page 2-6for
battery replacement instructions.
Roof Ajar
This message will be displayed on the DIC when trying
to release the cargo cover and the convertible top is
not fully open or closed. Make sure your convertible
top is in the full-closed or full-open position before trying
to release your cargo cover. See
Convertible Top on
page 2-51andCargo Cover on page 2-36for more
information. This message will clear once the convertible
top is open or closed, or you can press the select
button to acknowledge the message and clear it from
the DIC display.
If this message repeatedly occurs while not trying to
release the cargo cover, see your GM dealer for service.
Roof Cycle Timeout
This message will be displayed on the DIC when the
convertible top has not completed its movement
from one position to another within the programmed
time limit. When this message appears, the convertible
top will stop moving. Release the convertible top
switch and make sure there is nothing blocking the
path of the top. If the path is clear, press the convertible
top switch again. See
Convertible Top on page 2-51for more information.
3-49

When operating the top in low temperatures, such as
below 32ÉF (0ÉC), the time needed to cycle the top will
increase. This may cause the top movement to stop
and the Roof Cycle Timeout message to appear on
the DIC display. If this occurs, you may release
the convertible top switch and press it again to continue
the cycle. Make sure nothing is blocking the path of
the top before pressing the switch again. It may
be necessary to do this several times to complete the
cycle, depending on the outside temperature. See
Convertible Top on page 2-51for more information.
Notice:If you operate the convertible top switch
continuously while the ignition is in ACCESSORY,
the battery will drain and you might not be able
to start your vehicle. Do not use the convertible
top switch for extended periods of time when
the ignition is in ACCESSORY.
Roof 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.
Service Air Bag
If there is a problem with the airbag system, this
message will be displayed on the DIC. The airbag
readiness light may also be displayed on the instrument
panel cluster. See your GM dealer for service. Press
the select button to acknowledge this message and clear
it from the display. See
Servicing Your Airbag-Equipped
Vehicle on page 1-51andAirbag Readiness Light on
page 3-27for more information.
Service Brake System
If a problem occurs with the brake system, this message
will appear on the DIC. The brake system warning
light and the anti-lock brake system warning light may
also be displayed on the instrument panel cluster.
See
Brake System Warning Light on page 3-30andAnti-Lock Brake System Warning Light on page 3-31for
more information. If this message appears, stop as
soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again
when you begin driving, the brake system needs service.
See your GM dealer. See
Brakes on page 5-35for
more information. Press the select button to
acknowledge this message and clear it from the display.
3-50

{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You cannot see it
or smell it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking your exhaust pipe. And check around
again from time to time to be sure snow does
not collect there.
Open a window just a little on the side of the
vehicle that is away from the wind. This will
help keep CO out.Run your engine only as long as you must. This
saves fuel. When you run the engine, make it go a
little faster than just idle. That is, push the accelerator
slightly. This uses less fuel for the heat that you get
and it keeps the battery charged. You will need a
well-charged battery to restart the vehicle, and possibly
for signaling later on with your headlamps. Let the
heater run for a while.
Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine
again and repeat this only when you feel really
uncomfortable from the cold. But do it as little as
possible. Preserve the fuel as long as you can. To
help keep warm, you can get out of the vehicle and do
some fairly vigorous exercises every half hour or so
until help comes.
4-27

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside
of Your Vehicle...........................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Speci cations....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Cover...............................................5-18
Engine Air Cleaner/Filter................................5-19
Automatic Transmission Fluid.........................5-21
Manual Transmission Fluid.............................5-24
Hydraulic Clutch...........................................5-25
Engine Coolant.............................................5-26
Coolant Surge Tank Pressure Cap..................5-28Engine Overheating.......................................5-28
Cooling System............................................5-30
Power Steering Fluid.....................................5-33
Windshield Washer Fluid................................5-34
Brakes........................................................5-35
Battery........................................................5-38
Jump Starting...............................................5-38
Rear Axle.......................................................5-43
Headlamp Aiming...........................................5-44
Bulb Replacement..........................................5-44
Halogen Bulbs..............................................5-44
Headlamps..................................................5-44
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-46
Taillamps.....................................................5-48
Back-Up Lamps............................................5-49
Replacement Bulbs.......................................5-49
Windshield Wiper Blade Replacement..............5-50
Tires..............................................................5-52
Tire Sidewall Labelling...................................5-53
Tire Terminology and De nitions.....................5-55
In ation - Tire Pressure.................................5-58
Tire Inspection and Rotation...........................5-60
Section 5 Service and Appearance Care
5-1