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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-4. 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 SERVICE
ENGINE SOON 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.
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Oil Pressure Light
If you have a problem with
your oil, this light may stay
on after you start your
engine, or come on when
you are driving.
This indicates that there is not enough pressure to keep
your engine properly lubricated and cool. The engine
could be low on oil, or have some other oil related
problem. Have it ®xed right away.
The oil light could also come on in three other situations.
·When the ignition is on but the engine is not
running, the light will come on as a test to show you
it is working, but the light will go out when you
turn the engine to START. If it doesn't come on with
the ignition on, you may have a problem with the
fuse or bulb. Have it ®xed right away.
·Sometimes when the engine is idling at a stop, the
light may blink on and off. This is normal.
·If you make a hard stop, the light may come on for
a moment. This is normal.
{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.
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Overdrive Off Light
This light comes on when
the automatic four-speed
transmission, if equipped,
has been converted to
the three-speed mode
and the overdrive is
turned off.
This light also comes on as a check for about
®ve seconds when the ignition key is turned to ON
or START.
Four-Wheel-Drive Light
If you have four-wheel
drive, this light comes on
when the ignition switch is
on and the transfer
case lever is in one of the
four-wheel drive positions.
See
Four-Wheel Drive on page 5-49.
Power Indicator Light
This light comes on when
the power mode selector
switch, if equipped, is
turned to P (power) with
the ignition switch in
the ON position.
This light comes on as a check for about ®ve seconds
when the ignition key is turned to ON or START.
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Fuel Gage
Your fuel gage shows
about how much fuel is in
your tank. When the
gage ®rst indicates
E (empty), you still have
about one or two gallons
(4 to 8 L) of fuel left in your
tank, but you need to
get more right away.Here are four concerns some owners have had about
the fuel gage. All these situations are normal and do not
indicate that anything is wrong with the fuel gage.·At the gas station, the fuel pump shuts off before the
gage reads F (full).
·It takes more (or less) fuel to ®ll up than the gage
reads. For example, the gage reads half full, but it
took more (or less) than half of the tank's
capacity to ®ll it.
·The gage moves a little when you turn, stop or
speed up.
·When you turn the engine off, the gage doesn't go
back to E (empty).
·It takes several minutes for the gage to read F (full)
after ®lling the tank.
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Page 141 of 374

Audio System(s)
Notice:Before you add any sound equipment to
your vehicle ± like a tape player, CB radio, mobile
telephone or two-way radio ± be sure you can
add what you want. If you can, it's very important to
do it properly. Added sound equipment may
interfere with the operation of your vehicle's engine,
radio or other systems, and even damage them.
Your vehicle's systems may interfere with the
operation of sound equipment that has been added
improperly.
So, before adding sound equipment, check with
your dealer and be sure to check federal rules
covering mobile radio and telephone units.
Some models do not include a radio, however all
models come with four speakers, an antenna and all of
the wiring needed to install a radio.
Notice:Any non-factory installed radios are not
covered by your vehicle's warranty.
Your audio system has been designed to operate easily
and to give years of listening pleasure. You will get
the most enjoyment out of it if you acquaint yourself with
it ®rst. Figure out which radio you have in your vehicle,
®nd out what your audio system can do and how to
operate all of its controls to be sure you're getting the
most out of the advanced engineering that went into it.
Setting the Time
Press and hold the HR or MIN arrow for two seconds.
Then press the HR arrow until the correct hour appears
on the display. Press and hold the MIN arrow until
the correct minute appears on the display. The time may
be set with the ignition on or off.
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Radio with CD
Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
VOL (Volume):Turn this knob to increase or to
decrease volume.
RCL (Recall):Press this knob to switch the display
between the radio station frequency and the time.
Time display is available with the ignition turned off.
Finding a Station
AM FM:Press this button to switch between FM1,
FM2, and AM. The display will show your selection.
TUNE:Turn this knob to select radio stations.
oSEEKp:Press the right or the left arrow to go to
the next or to the previous station and stay there.
To scan stations, press and hold either SEEK arrow for
two seconds until you hear a beep. The radio will go
to a station, play for a few seconds, then go on to
the next station. Press either SEEK arrow again to stop
scanning.
To scan preset stations, press and hold either SEEK
arrow for more than four seconds until you hear
two beeps. The radio will go to the ®rst preset station
stored on your pushbuttons, play for a few seconds, then
go on to the next preset station. Press either SEEK
arrow again to stop scanning presets.
The radio will seek and scan only to stations that are in
the selected band and only to those with a strong
signal.
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Setting Preset Stations
The six numbered pushbuttons let you return to
your favorite stations. You can set up to 18 stations
(six FM1, six FM2, and six AM) by performing the
following steps:
1. Turn the radio on.
2. Press AM FM to select FM1, FM2, or AM.
3. Tune in the desired station.
4. Press and hold one of the six numbered
pushbuttons until you hear a beep. Whenever you
press that numbered pushbutton, the station
you set will return.
5. Repeat the steps for each pushbutton.
Setting the Tone (Bass/Treble)
AUDIO:To adjust the bass or the treble, press and
release the AUDIO button repeatedly until BAS or TRE
appears on the display. Then press and hold the up
or the down arrow to increase or to decrease. If a station
is weak or noisy, you may want to decrease the
treble.
To adjust bass or treble to the middle position, select
BAS or TRE. Then press and hold the AUDIO button for
more than two seconds until you hear a beep. B and
a zero or T and a zero will appear on the display.
To adjust both tone controls and both speaker controls
to the middle position, ®rst end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting ®ve seconds for the display
to return to time of day. Then press and hold the AUDIO
button for more than two seconds until you hear a
beep. CEN will appear on the display.
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Adjusting the Speakers (Balance/Fade)
AUDIO:To adjust the balance between the right
and the left speakers, press and release the AUDIO
button until BAL appears on the display. Then press and
hold the up or the down arrow to move the sound
toward the right or the left speakers.
To adjust the fade between the front and rear speakers,
press and release the AUDIO button until FAD
appears on the display. Then press and hold the up or
the down arrow to move the sound toward the front
or the rear speakers.
To adjust balance or fade to the middle position, select
BAL or FAD. Then press and hold AUDIO for more
than two seconds until you hear a beep. L and a zero
or F and a zero will appear on the display.
To adjust both tone controls and both speaker controls
to the middle position, ®rst end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting ®ve seconds for the display
to return to time of day. Then press and hold the AUDIO
button for more than two seconds until you hear a
beep. CEN will appear on the display.
Radio Messages
CAL (Calibration):Your audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that your radio has not
been con®gured properly for your vehicle and must
be returned to the dealer for service.
Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing. CD
will appear on the display. If you want to insert a CD
when the ignition is off, ®rst press the eject button or the
RCL knob.
If you insert a CD with the radio off and the ignition on,
it will start to play.
If you turn off the ignition with a CD in the player, it will
stay in the player. When you turn on the ignition or
radio, the CD will start playing where it stopped, if it was
the last selected audio source.
As each new track starts to play, the track number will
appear on the display.
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