
Charging System Light
The charging system light
will come on briefly when
you turn on the ignition,
but the engine is not
running, as a check to
show you it is working.
It should go out once the engine is running. If it stays
on, or comes on while you are driving, you may have a
problem with the charging system. It could indicate
that you have problems with a generator drive belt, or
another electrical problem. Have it checked right
away. Driving while this light is on could drain
your battery.
If you must drive a short distance with the light on, be
certain to turn off all your accessories, such as the radio
and air conditioner.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. See
Parking Brake on page 2-23for more information. The
light will stay on if your parking brake doesn’t release
fully. If it stays on after your parking brake is fully
released, it means you have a brake problem.
Your vehicle’s hydraulic brake system is divided into
two parts. If one part isn’t working, the other part can still
work and stop you. For good braking, though, you
need both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.
This light should come on briefly when you turn the
ignition key to RUN. If it doesn’t come on then, have it
fixed so it will be ready to warn you if there’s a problem.
United StatesCanada
3-30

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, misfiring, 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 fix 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. Volt 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.
Volt 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. United States shown, Canada similar
3-40

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. SeeCharging System Light on page 3-30for
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.
SeeCharging System Light on page 3-30for more
information. Press the select button to acknowledge the
message and clear it from the DIC display.
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.
SeeCharging System Light on page 3-30for 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 the transmission fluid needs to be changed, this
message will appear on the DIC. SeeAutomatic
Transmission Fluid on page 5-20andScheduled
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. SeeEngine Oil on page 5-13for more
information. Press the select button to acknowledge this
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. SeeConvertible Top on page 2-45for 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 “Battery Replacement” underRemote
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. SeeConvertible Top
on page 2-45andCargo Cover on page 2-35for 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. SeeConvertible Top on page 2-45for
more information.
3-49

When operating the top in low temperatures, such as
below 32°F (0°C), 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 2-45for 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. SeeServicing 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.
SeeBrake System Warning Light on page 3-30and
Anti-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. SeeBrakes on page 5-32for 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
Accessories and Modifications..........................5-3
California Proposition 65 Warning.....................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 Specifications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the 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................................5-18
Automatic Transmission Fluid.........................5-20
Manual Transmission Fluid.............................5-22
Hydraulic Clutch...........................................5-23
Engine Coolant.............................................5-24
Coolant Surge Tank Pressure Cap..................5-27Engine Overheating.......................................5-27
Cooling System............................................5-29
Power Steering Fluid.....................................5-31
Windshield Washer Fluid................................5-31
Brakes........................................................5-32
Battery........................................................5-36
Jump Starting...............................................5-37
Rear Axle.......................................................5-42
Headlamp Aiming...........................................5-43
Bulb Replacement..........................................5-43
Halogen Bulbs..............................................5-44
Headlamps..................................................5-44
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-45
Taillamps, Turn Signal, and Stoplamps............5-47
Back-Up Lamps............................................5-48
Replacement Bulbs.......................................5-48
Windshield Wiper Blade Replacement..............5-49
Tires..............................................................5-51
Tire Sidewall Labeling...................................5-52
Tire Terminology and Definitions.....................5-54
Inflation - Tire Pressure.................................5-57
Tire Inspection and Rotation...........................5-59
When It Is Time for New Tires.......................5-59
Buying New Tires.........................................5-60
Section 5 Service and Appearance Care
5-1