1993 GMC SIERRA radio controls

Features & Controls
New Vehicle “Bmak-Rn99
1 NOTICE
Jr modern vehicle doesn’t need an elaborate “break-in.” But\
it will
perform better in the long run
if you follow these guidelines:
Keep your speed at 55 mph (88 kmlh) or less for the first 500 miles
(804 km).
Don’t drive at any one speed-fast or slow-for the first 500 miles
(804 km). Don’t make full-throttle starts.
Avoid making hard stops for the first 200 miles (322 km) or so.
During this time your new brake linings aren’t yet broken in. Hard
stops with new linings can mean premature wear and earlier
replacement. Follow this “breaking-in” guideline every time you get
new brake linings.
If you have
a 3500 HD Model, see “Parking Brake” in the Index.
Ignition Switch
Use your square key to start your vehicle. The square key lets you turn the
ignition switch
to five different positions:
6 1
RUN
KO404
Acc (Accessory): Acc lets you use things like the radio and the windshield
wipers when the engine
is off. To get into Acc, push in the key and turn it
toward you. Your steering wheel will remain locked, just as it was before you
inserted the key.
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Features & Controls
“Engine Coolant’’ in the Index and have your vehicle s\
erviced as soon as
you can.
Charging System Light
K2328
The red charging system light is located at the upper right hand corner of
your instrument cluster. It should come on briefly when you turn on the
ignition, before starting the engine, as a check to show you it is working.
After the engine starts, the light should
go out. If it stays on, or comes on
while you are driving, you may have a problem with your elect\
rical charging system. It could indicate that you have a loose alternator drive belt, or\
that
you have some other 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.
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Comfort Controls & Audio Systems
Section
?
In this section you’ll find out how to operate the comfort control and audio
systems offered with your vehicle. Be sure to read about the particular system
supplied with your vehicle.
For explanation of vehicle symbols in this secrlon, reTer to “Vehicle
Symbols” in Section 0.
Comfort Control System ........................................................................\
............... 3-2
Flow-Through Ventilation System
..................................................................... 3-2
Heating System (Without Air Conditioning)
..................................................... 3-4
Heater Output
........................................................................\
............................ 3-5
Electronic Heating/Air Conditioning System ..................................................... 3-5
Rear Window Defogger
........................................................................\
............. 3-8
Audio Systems
........................................................................\
............................... 3-9
FM Stereo ........................................................................\
.................................. 3-9
AM
....... . ... . . . . . , .. . . . . . . . . . . .. ... .. .. . . . . . . .. . . . . . ... . .. .. . .. ,. . . . . , . . , . . . . .. . . .. ... .. .. . . . . . . , . . . . ... . . . .... . .. . . . . . .3-9
AM Stereo
............................................. ........................................................... 3-1 0
How to Operate Your AM ETR@Radio ......................................................... 3-10
How to Operate Your AM-FM Stereo Audio System
and Cassette Deck
.II..I.I..I.I...................................I...........I...........\
.............. 3-11
How to Operate Your AM-FM Stereo Audio System
and Cassette Deck with Equalizer
.............,.,.,...................,........................... 3-14
Care of Your Cassette Tape Player
............................................................... 3-18
Fixed Mast Antenna
.................................. ...................................................... 3-1 8
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Audio Systems
Your Delco@ audio system has been designed to operate easily and give
years of listening pleasure. But you will get the most enjoyment out of it,
if
you acquaint yourself with it first. Find out what your Delco@ system can do
and how to operate all its controls, to be sure you’re getting the most out of
the advanced engineering that went into
it.
Hearing damage from loud noise is almost undetectable until it is too
late. Your hearing can adapt to higher volumes of sound. Sound that
seems normal can be loud and harmful to your hearing. Take
precautions by adjusting the volume control on your radio to a safe
sound level before hearing adapts to
it.
To help avoid hearing loss or damage: I a-
s
Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably and clearly.
I NOTICE I
FM Stereo
FM stereo will give you the best sound. But FM signals will reach only about
10 to 40 miles (16 to 65 km). And, tall buildings or hills can interfere with
FM signals, causing the sound to come and go.
AM
The range for most AM stations is greater than for FM, especially at night.
The longer range, however, can cause stations to interfere with each other.
AM can pick up noise from things like electrical storms and power\
lines. If
the noise interferes with your listening,
try reducing the treble to lessen the
noise.
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Comfort Controls & Audio Systems
AM Stereo
This means the Delco@ system can receive C-QUAM@ stereo broadca\
sts. Many AM stations around the country use C-QUAM@
to produce stereo,
though some do not. (C-QUAM@ is a registered trademark of Motorola, Inc.).
If your Delco@ system can get C-QUAM? your “STEREO” light will come on
when you’re receiving it.
How to Operate Your AM ETWRadio
I 2 3 4 ..
K2186
To Play the Radio
Press the PWR-VOL-TONE knob to switch the radio on and off. This knob
does
two other things:
It controls the volume. The VOL knob increases the volume when
rotated clockwise.
The knob behind the PWR-VOL knob is the TONE knob. Rotate this
knob counterclockwise for more bass and clockwise for more treb\
le.
TUNE Button
Press the side of the button with the down arrow to decrease the radio
frequency or the side of the switch with the up arrow to increase the radio
frequency.
RCL Button
When the ignition is off, press the RCL button to display the time. With the
ignition in
RUN or ACC, press it to recall the station frequency when the time
is showing.
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Pushbuttons
The five pushbuttons let you return to favorite stations. Just:\

Tune in the station you want.
Press the SET button. (SET appears in the VF display for a few
Within 5 seconds, press one of the five pushbuttons to store the station.
seconds).
Whenever you press that button, the preset station will return.\

How to Operate Your AM-FM Stereo
Audio System and Cassette Deck
PO200
To Play the Radio
Press the amber PWR button
to switch the radio on and off.
VOL
Controls the volume. Pressing (t) increases volume; (-) decreases volume.
RCL
When the ignition is off, press the RCL button to display the time. With the
ignition on, press
RCL to recall the station frequency and volume setting
when the time is showing.
BAUFADE
To balance and fade the sound between the rightlleft or frontlrear speakers,
use the four buttons with the speaker symbols on them. Press \
the left and
right buttons to adjust the left and right speaker balance. Pr\
essing the top
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Comfort Contmls & Audio Systems
If a tape is inserted with side “1” (or “A”) up, then the up arrow means that
that side is being played. Likewise, a down arrow would indica\
te that side
“2”
(or “B”) had been selected. The player will automatically switch to the other
side of the tape when the first side ends.
EJECT
To remove the tape or stop the tape and switch to radio, press the EJCT
button.
How to Operate Your AM-FM Stereo
Audio System
and Cassette Deck with Equalizer
PO1 99
To Play the Radio
Press the amber PWR button to switch the radio on and off.
VOL
Controls the volume. Pressing (t) increases volume; (-) decreases volume.
RCL
When the ignition is off, press the RCL button to display the time. With the
ignition on, press
RCL to recall the station frequency and volume setting
when the time is showing.
BAUFADE
To balance and fade the sound between the rightlleft or fronurear speakers,
use the four buttons with the speaker symbols on them. Press the \
left and
right buttons to adjust the
left and right speaker balance. Pressing the top
and bottom buttons adjusts the front and rear speaker volume, \
or fade. The
relative balance and fade adjustments are shown on the
VF display.
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Comfort Controls & Audio Systems
AmSt
The AmSt button is just below the PWR button. Push this when you tune to
an AM station that broadcasts in stereo. Your
STEREO light will come on
when you’re receiving AM stereo.
If you push AmSt and there is no more
noise,
it means the station is weak. You’ll hear the station better if you don’t
use
AmSt. Just push the AmSt button again to cancel stereo.
NOTE: Your Delco system may be able to receive C-QUAM@ stereo
broadcasts. Many AM stations around the country use C-QUAM@ to produce
stereo, though some do not. C-QUAM@ is a registered trademark
of Motorola
Inc. If your Delco system can get C-QUAM@ signals, your
STEREO light will
come on when you are receiving stereo.
Cassette Deck with Graphic Equalizer
K2311
Press the PWR button on the radio to turn the unit on. The radio will play
until a cassette is pushed into the cassette entry door (the \
tape side goes in
first.) The cassette deck is built to work best with tapes that are
30 to 45
minutes long on each side. Tapes longer than that are so thin that they may
not work well in this player.
Once the tape is playing, use the
VOL, BAL and FADE controls on the
radio. The arrows indicate which side
of the tape is being played.
Equalizer
Boost the bass, emphasize a voice in a song, brighten the treble-your
equalizer enables you to adjust five separate sound frequencies \
to your
individual taste.
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