Interior Lamps
Instrument Panel Brightness Control
This feature controls the brightness of the instrument
panel lights.
The thumbwheel for this feature is located to the right of
the exterior lamp control.
Turn the thumbwheel up to brighten the lights. When
the thumbwheel is moved to the first position, the radio
display and transmission selection display will go to
full intensity. The instrument panel cluster will also be
dimly lit. Moving the thumbwheel up to the next position
will activate the interior dome lamps.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by moving
the thumbwheel, located to the right of the exterior lamp
control, all the way up to the second position. In this
position, the dome lamps will remain on whether a door
is open or closed.
You can use the dome override button to set the dome
lamps to automatically come on when a door is
open, or to remain off.The dome override button is located below the exterior
lamp control.
If the dome override button is pushed in, the dome
lamps will not come on. Use this feature when you want
to leave your door(s) open for an extended period of
time and do not want to run the battery down.
If the dome override button is in the out position, the
interior lamps will work as usual.
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Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
Your odometer shows how far your vehicle has
been driven, in either miles (used in the United States)
or kilometers (used in Canada).
Trip Odometer
The trip odometer can tell you how far your vehicle
has been driven since you last set the trip odometer
to zero.
While the engine is running, press the reset button,
located to the right of the trip odometer, to toggle
between the trip odometer and the regular odometer.
Holding the reset button for two seconds while the
engine is running and the trip odometer is displayed,
will reset it.
To display the odometer reading with the ignition off,
press the reset button.
Engine Speed Limiting
All engines have electronic engine speed limiting.
The engine limited speeds range between
2,900 and 4,400 rpm depending on engine
option content.
Engine Road Speed Governor
This system controls maximum vehicle speed
automatically and reduces engine power until vehicle
speed gets down to maximum governed speed.
A 75 mph (120 km/h) road speed governor is standard
for most models, but can be programmed to any
speed below that default setting. Other models have a
default setting of 80 to 85 mph (128 to 136 km/h).
You may have a label on the headliner of your vehicle
with more information on your engine road speed
governor. See your dealer for assistance with
programming your engine limited speed.
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Service Transmission Warning Light
If your vehicle has an Allison automatic transmission,
certain transmission malfunctions will turn this light on.
This light is located with
the auxiliary warning lights
in the center of the
instrument panel.
If this light comes on while you are driving, do not use
the transmission shift control or you may lose forward
gears. The computer for the transmission senses
a problem and chooses a gear to stay in so that you
can drive the vehicle in that gear. You may not be able
to drive as fast or back up when this light is on.
Notice:If you continue driving your vehicle after
the transmission warning light comes on, you could
damage the transmission. While this light is on,
the transmission cannot operate in all gears. If you
attempt to shift gears, the vehicle may not
continue to move. Do not attempt to shift gears
while the transmission warning light is on. Instead,
drive directly to a GM dealer for service. If you
cannot drive to a dealer immediately, have the
vehicle towed.
Range Inhibit Warning Indicator
If your vehicle has an Allison
1000/2000/2200/2400 series automatic transmission, a
lighted bar under the current gear selected will flash.
If your vehicle has an Allison MD automatic
transmission, the current gear selected on the
pushbutton display will flash.
The flashing bar or gear selection indicates that
transmission range shifts may not occur.
For detailed information on shift inhibit limitations, see
the Allison Automatic Transmission Operator’s Manual in
your vehicle for further information.
Brake System Warning Light
Your vehicle has either hydraulic or air brakes. Each
system has different warning lights.
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Hourmeter Gage
The instrument panel cluster displays the accumulated
engine run time hours using the reconfigurable
odometer VF display. The engine run time hours
displays only when the ignition is in the OFF or ACC
position and the trip reset switch is pressed for
about four seconds.
When the ignition is in the OFF or ACC position, the
instrument panel cluster displays the engine
accumulated hours for up to 30 seconds. The value of
the accumulated hours does not change when the
battery is disconnected.
The hourmeter resets to 0.0 when 10,000 hours are
accumulated. The instrument panel cluster begins
to reaccumulate the engine run time hours from 0.0
hours.
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.
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 first. Figure out which radio you have in your vehicle,
find out what your audio system can do, and how to
operate all of its controls to be sure you are 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 (down) arrow until the correct
hour appears on the display. Press and hold the
MIN (up) arrow until the correct minute appears on
the display. The time may be set with the ignition on
or off.
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AM-FM Radio
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,
or 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 first preset station
stored on the 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 bass and treble, press and release
AUDIO 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 AUDIO 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, end out of audio by waiting
for the display to change to the time display. Then press
and hold AUDIO for more than two seconds until you
hear a beep. CEN will appear on the display.
Adjusting the Speakers (Balance/Fade)
AUDIO:To adjust the balance between the right
and the left speakers, press and release AUDIO 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 the rear
speakers, press and release AUDIO 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.
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To adjust both tone controls and both speaker controls
to the middle position, end out of audio by waiting
for the display to change to the time display. Then press
and hold AUDIO for more than two seconds until you
hear a beep. CEN will appear on the display.
Fade may not be available if you have a regular cab
model.
Radio Messages
CAL (Calibrated):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 configured properly for your vehicle and must
be returned to the dealer for service.
LOC (Locked):This message is displayed when the
Theftlock
®system has locked up. Your vehicle must be
returned to the dealer for service.
Radio with Cassette
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 time and radio station frequency. Time display
is available with the ignition turned off.
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Finding a Station
AM FM:Press this button to switch between AM, FM1
and FM2. The display will show your selection.
TUNE:Turn this knob to choose radio stations.
oSEEKp:Press the right or the left arrow to seek
to the next or to the previous station and stay there.
To scan stations, press and hold one of the SEEK
arrows for two seconds until you hear a beep. The radio
will go to a station, play for a few seconds and flash
the station frequency, then go on to the next station.
Press one of the SEEK arrows again to stop scanning.
To scan preset stations, press and hold one of the
SEEK arrows for more than four seconds until you hear
two beeps. The radio will go to the first preset station
stored on the pushbuttons, play for a few seconds
and flash the station frequency, then go on to the next
preset station. Press one of the SEEK arrows 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.
Setting Preset Stations
The six numbered pushbuttons let you return to
your favorite stations. You can set up to 18 stations
(six AM, six FM1 and six FM2) by performing the
following steps:
1. Turn the radio on.
2. Press AM FM to select AM, FM1 or FM2.
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 bass and treble, press and release
AUDIO 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 AUDIO for more than
two seconds until you hear a beep. B and a zero or
T and a zero will appear on the display.
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