Exhaust Restrictor (Engine
Warm-Up)
Exhaust Restrictor
If your vehicle has a Isuzu 6H Diesel Engine, it may
have a feature called an Exhaust Restrictor (NPE),
which uses an air actuated valve in the exhaust system
to restrict exhaust gas flow which enhances the
engine and heater warm-up.
Automatic Quick Warm-Up
If your vehicle has a DURAMAX®6600 engine, it has a
feature called an Automatic Quick Warm-Up, which
uses the turbocharger to restrict the exhaust gas flow
which enhances the engine and heater warm-up.
In both systems, exhaust restrictor or automatic quick
warm-up, the cold temperature high idle feature elevates
the engines idle speed, up to 1500 rpm, and restricts
the exhaust gas flow, when outside temperatures
are below 50°F (10°C), and the engine coolant
temperature is below certain levels. This feature
enhances heater performance by raising the engine
coolant temperature faster.For all engines this feature is already turned on. The
automatic quick warm-up on the DURAMAX
®engine
can be turned off and on by doing the following
procedure:
1. Turn the ignition to RUN, with the vehicle off.
2. Press the accelerator pedal to the floor and hold it
while quickly pressing and fully releasing the brake
pedal three times in less than eight seconds.
3. Release the accelerator pedal and start the engine.
The green exhaust brake/restrictor light below the
radio controls will be lit for 10 seconds.
If this feature is turned off, by doing the procedure
described previously, and then the engine is
started, the exhaust brake/restrictor light will flash
for 10 seconds and then it will turn off.
When the engine is started, it will slowly increase to the
high idle speed after a delay of a few seconds; up to
about two minutes. For this method to work properly
there must be no throttle or brake pedal faults, and the
throttle pedal must not fall below 75 percent of wide
open throttle while pressing the brake pedal.
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Marker Lamps
If your vehicle has this feature, you can manually blink
the marker and clearance lamps.
The marker lamp defeat
switch is located in the
instrument panel
switchbank.
Press and hold the bottom of the switch to turn off the
marker and clearance lamps. When you release
the switch, the marker and clearance lamps will come
back on.
Instrument Panel Brightness
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.
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Audio System(s)
If your vehicle came without a radio, the wiring
provisions for a radio and an antenna were installed at
the assembly plant, so that if you want, a radio can
be installed at the dealer/retailer.
Determine which radio your vehicle has and then read the
pages following to familiarize yourself with its features.
{CAUTION:
This system provides you with far greater
access to audio stations and song listings.
Giving extended attention to entertainment
tasks while driving can cause a crash and you
or others can be injured or killed. Always keep
your eyes on the road and your mind on the
drive — avoid engaging in extended searching
while driving.
Keeping your mind on the drive is important for safe
driving. SeeDefensive Driving on page 4-2. Here are
some ways in which you can help avoid distraction
while driving.While your vehicle is parked:
•Familiarize yourself with all of its controls.
•Familiarize yourself with its operation.
•Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering wheel
controls if the vehicle has them.
Notice:Before adding any sound equipment to
your vehicle, such as an audio system, CD player,
CB radio, mobile telephone, or two-way radio, make
sure that it can be added by checking with your
dealer/retailer. Also, check federal rules covering
mobile radio and telephone units. If sound equipment
can be added, it is 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.
Notice:The chime signals related to safety belts,
parking brake, and other functions of your vehicle
operate through the radio/entertainment system. If
that equipment is replaced or additional equipment is
added to your vehicle, the chimes may not work.
Make sure that replacement or additional equipment
is compatible with your vehicle before installing it.
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Setting the Tone (Bass/Treble)
AUDIO:To adjust the bass or the treble, press and
release the AUDIO button until BAS (bass) or TRE
(treble) displays. Then press and hold the up
wor the
down
xarrow to increase or to decrease. If a station
is weak or has static, 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 a beep sounds. B and a
zero or T and a zero displays.
To adjust both tone controls and both speaker controls
to the middle position, first end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to the time of day. Then press and hold
the AUDIO button for more than two seconds until a
beep sounds. CEN (center) displays.
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 (balance) displays. Then press and hold
the up
wor the downxarrow 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 the AUDIO button until
FAD (fade) displays. Then press and hold either 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 a beep sounds. B (balance)
and a zero or F (fade) and a zero displays.
To adjust both tone controls and both speaker controls
to the middle position, first end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to the time of day. Then press and hold
the AUDIO button for more than two seconds until a
beep sounds. CEN displays.
Fade may not be available if the vehicle is a regular
cab model.
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Playing a Cassette Tape
The tape player is built to work best with tapes that are
up to 30 to 45 minutes long on each side. Tapes
longer than that are so thin they might not work well in
this player. The longer side with the tape visible
should face to the right. If you hear nothing or hear a
garbled sound, the tape might not be in squarely.
Press the
Z(eject) button to remove the tape and
start over.
If the ignition and the radio are off, press the eject
button or the RCL knob to insert and to begin play of a
tape. If the ignition is on and the radio is off, the
tape can be inserted and begins playing. CAS (cassette)
displays when a tape is inserted.
While the tape is playing, use the VOL, AUDIO, and
SEEK controls just as you do for the radio. The radio
displays UP if the top side of the tape is playing.
DN (Down) appears if the bottom side is playing.
The tape player plays the other side of the tape when
it reaches the end.Cassette tape adapter kits for portable CD players
works in the cassette tape player. See “CD Adapter Kits”
later for more information.
The tape bias is set automatically when a metal or
chrome tape is inserted.
If an error displays, see “Cassette Tape Messages” later
in this section.
1 PREV (Previous):The tape must have at least
three seconds of silence between each selection for
previous to work. Press this pushbutton to go to
the previous selection on the tape if the current selection
has been playing for less than three seconds. If pressed
when the current selection has been playing from
three to 13 seconds, it goes to the beginning of the
previous selection or the beginning of the current
selection, depending on the position on the tape.
If pressed when the current selection has been playing
for more than 13 seconds, it goes to the beginning
of the current selection. Pressing this pushbutton
multiple times increases the number of selections to
be searched back, up to−9. Pressing the NEXT
pushbutton cancels the selections.
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2 NEXT:The tape must have at least three seconds of
silence between each selection for next to work.
Press this pushbutton to go to the next selection on the
tape. Pressing this pushbutton multiple times in the
next mode increases the number of selections to
be searched forward. Pressing the PREV pushbutton
cancels the selections.
3 REV (Reverse):Press to quickly reverse the tape.
FR displays. The radio plays while the tape reverses.
Press it again to return to playing speed. Select stations
during reverse operation by using the TUNE or SEEK
controls or by using the scan or preset scan features.
4 FWD (Forward):Press to quickly advance the
tape. FF displays. The radio plays while the tape
advances. Press again to return to playing speed.
Select stations during forward operation by using the
TUNE or SEEK controls or by using the scan or preset
scan features.
5 SIDE:Press to play the other side of the tape.6 RPT (Repeat):The tape must have at least three
seconds of silence between each selection for repeat to
work. Press and release to hear a selection over again.
RPT displays. Press again to turn off repeated play.
OFF displays.
oSEEKp:The tape must have at least three
seconds of silence between each selection for seek to
work. The left arrow is the same as the PREV
pushbutton and the right arrow is the same as the
NEXT pushbutton. If either the left or right arrow is
held or pressed more than once, the player continues
moving backward or forward through the tape.
AM FM:Press to listen to the radio when a tape is
playing. The inactive tape remains inside the radio for
future listening.
TAPE:Press to play a cassette tape when listening to
the radio. CAS displays when a tape is loaded.
Z(Eject):Press to eject a tape. Eject can be
activated with the radio off. Cassette tapes can be
loaded with the ignition and radio off if this button
is pressed first.
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