Setting clock GMC SONOMA 2002 Owner's Manual

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3-1
Section 3 Comfort Controls and Audio Systems
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 systems supplied with your vehicle.
3
-2 Comfort Controls
3-2 Standard Climate Control System
3-3 Optional Climate Control System
3-5 Air Conditioning (If Equipped)
3-5 Heating
3-6 Defogging and Defrosting
3-6 Ventilation System
3-7 Audio Systems
3-7 Setting the Clock for Systems with
SET Button
3
-7 Setting the Clock for Systems with HR and
MN Buttons
3
-8 Setting the Clock for Systems with Radio
Data System (RDS)
3
-8AM-FM Stereo
3-10 AM-FM Stereo
3-13 AM-FM Stereo with Cassette Tape Player
(If Equipped)
3
-16 AM-FM Stereo with Cassette Tape Player and
Automatic Tone Control (If Equipped)
3
-21 AM-FM Stereo with Compact Disc Player and
Automatic Tone Control (If Equipped)3
-26 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and Automatic
Tone Control (If Equipped)
3
-34 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data System
(RDS) and Automatic Tone Control
(If Equipped)
3
-44 AM-FM Stereo with Six-Disc Compact Disc
Player with Programmable Equalization and
Radio Data System (RDS) (If Equipped)
3
-56 Remote Cassette Tape Player (If Equipped)
3-58 Theft-Deterrent Feature (If Equipped)
3-60 Theft-Deterrent Feature RDS Radios
(If Equipped)
3
-60 Understanding Radio Reception
3-61 Tips About Your Audio System
3-62 Care of Your Cassette Tape Player
3-63 Care of Your Remote Cassette Tape Player
3-64 Care of Your Compact Discs
3-64 Care of Your Compact Disc Player
3-64 Fixed Mast Antenna

3-3
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
OFF: This setting turns the system off. Some outside air
will still enter the vehicle whenever the vehicle is
moving forward. If the air entering your vehicle is
warmer than desired, turn the temperature knob fully
counterclockwise and turn the mode knob to vent mode.
(Vent): This setting directs most of the air through
the instrument panel outlets and a small amount through
the floor outlets.
(Bi-Level): Air is delivered through the floor
outlets as well as the instrument panel outlets.
(Floor): This setting directs most of the air
through the floor outlets and some air through the
windshield defroster outlets.
(Blend): Airflow is divided equally between the
floor outlet and the windshield defroster outlets.
(DEFROST): This setting directs most air through
the windshield defroster outlets and some through the
floor outlets.
Optional Climate Control System
Fan Control
The knob on the left side of the climate control system
panel operates the fan speed. To increase airflow, turn
the knob clockwise. To decrease airflow, turn it
counterclockwise.

3-4
Temperature Knob
The middle knob on the control panel lets you select the
relative temperature of the air flowing into the passenger
area of your vehicle. Turn the knob clockwise toward
the red area for warmer air. Turn the knob
counterclockwise toward the blue area for cooler air.
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery and settings for
air conditioning.
OFF: This setting turns the system off. Some outside air
will still enter the vehicle whenever the vehicle is
moving forward.
MAX A/C (Maximum Air Conditioning): This setting
provides maximum cooling with the least amount of
work. MAX A/C recirculates much of the air inside your
vehicle so it cools quickly. This setting directs most of
the air through the instrument panel vents and a small
amount through the floor vents.A/C (Air Conditioning): This setting cools the air
entering your vehicle and directs most of the air through
the instrument panel vents and a small amount through
the floor vents.
(Bi-Level): This setting cools the air entering your
vehicle and directs it through the heater floor outlets as
well as the instrument panel outlets.
(Vent): This setting directs most of the air through
the instrument panel outlets and a small amount through
the floor outlets. The air conditioning compressor is not
working when the other modes are selected.
(Floor): This setting directs most of the air
through the floor outlets and some air through the
windshield defroster outlets.
(Blend): Airflow is divided equally between the
floor outlet and the windshield defroster outlets.
(Defrost): This setting directs most air through
the windshield defroster outlets and some through the
floor outlets.

3-5 Air Conditioning (If Equipped)
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
For quick cool
-down on very hot days, use MAX A/C
with the temperature knob turned counterclockwise.
This setting should be used to keep odors and/or dust
from entering the vehicle. For normal cooling on hot
days, use A/C with the temperature knob turned
counterclockwise.
On cool but sunny days, use bi
-level to deliver warm
air to the floor and cooler air to the instrument
panel outlets.
If you have the VORTEC 4300 V6 engine, when the air
conditioner is on, you may sometimes notice slight
changes in your vehicle's engine speed and power. This
is normal because the system is designed to cycle the
compressor on and off to keep the desired temperature.
Heating
The heater works best if you keep your windows closed
while using it. On cold days, use the floor outlets with
the temperature knob turned clockwise. Blend is useful
in cool weather when you have fog or ice on the
windshield or side windows.
If you use the optional engine coolant heater before
starting your engine, your heating system will produce
warmer air faster to heat the passenger compartment in
cold weather. See ªEngine Coolant Heaterº in the Index.

3-7
Ventilation Tips

Keep the hood and front air inlet free of ice, snow or
any other obstruction (such as leaves). The heater
and defroster will work far better, reducing the
chance of fogging the inside of your windows.

When you enter a vehicle in cold weather, turn the
fan control to high for a few moments before driving
off. This helps clear the intake ducts of snow and
moisture, and reduces the chance of fogging the
inside of your windows.

Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.Audio Systems
Your audio system has been designed to operate easily
and give years of listening pleasure. You will get the
most enjoyment out of it if you acquaint yourself with it
first. Find out what your audio 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.
Setting the Clock for Systems with the
SET Button
Press SET. Within five seconds, press and hold the right
SEEK arrow until the correct minute appears on the
display. Press and hold the left SEEK arrow until the
correct hour appears on the display.
Setting the Clock for Systems with HR and
MN Buttons
Press and hold HR until the correct hour appears on the
display. Press and hold MN until the correct minute
appears on the display. To display the clock with the
ignition off, press RECALL or HR/MN and the time
will be displayed for a few seconds. There is an initial
two
-second delay before the clock goes into the
time
-set mode.

3-8 Setting the Clock for Systems with Radio
Data System (RDS)
Your radio may have a button marked with an H or
HR to represent hours and an M, MN or MIN to
represent minutes.
Press and hold the hour button until the correct hour
appears. AM or PM will appear on the display. Press and
hold the minute button until the correct minute appears.
The clock may be set with the ignition on or off.
To set the clock to the time of an FM station
broadcasting Radio Data System (RDS) information,
press and hold the hour and minute buttons at the same
time for two seconds until UPDATED and the clock
symbol appears on the display. If the time is not
available from the station, NO UPDAT will appear on
the display instead.
RDS clock time is broadcast once a minute. Once you
have tuned to an RDS broadcast station, it may take a
few minutes for your clock time to update.
AM-FM Stereo
Playing the Radio
Power: Turn the VOLUME knob clockwise to turn the
system on and counterclockwise to turn the system off.
VOLUME: Turn this knob clockwise to increase
volume. Turn it counterclockwise to decrease volume.
RECALL: Pressing this knob will display the station
being played or it will display the clock. Clock display
is available with the ignition turned off.

3-10
Setting the Tone (Bass/Treble)
BASS: Slide this lever up or down to increase or
decrease bass.
TREB (Treble): Slide this lever up or down to increase
or decrease treble. If a station is weak or noisy, you may
want to decrease the treble.
Adjusting the Speakers (Balance/Fade)
BAL (Balance): Turn the control ring behind the
upper knob to move the sound to the left or right
speakers. The middle position balances the sound
between the speakers.
FADE: Turn the control ring behind the lower knob to
move the sound to the front or rear speakers. The middle
position balances the sound between the speakers.AM-FM Stereo
Playing the Radio
PWR (Power): Press this knob to turn the system on
and off.
VOL (Volume): Turn the knob clockwise to increase
volume. Turn it counterclockwise to decrease volume.
RCL (Recall): Pressing this knob will display the
station being played or it will display the clock. Clock
display is available with the ignition turned off.

3-18
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 AUTO TONE to select the setting you prefer.
5. Press and hold one of the six pushbuttons. The sound
will mute. When it returns, release the button.
Whenever you press that numbered pushbutton, the
station you set will return and the tone you selected
will be automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.Setting the Tone (Bass/Treble)
BASS: Press this knob lightly so it extends. Turn the
knob clockwise to increase bass and counterclockwise to
decrease bass.
TREB: Press this knob lightly so it extends. Turn the
knob clockwise to increase treble and counterclockwise
to decrease treble. If a station is weak or noisy, you may
want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.
AUTO TONE: This feature allows you to choose
bass and treble equalization settings designed for
country/western, jazz, talk, pop, rock and
classical stations.
Each time you press the AUTO TONE button, this
feature will switch to one of these program types.
To return the bass and treble to the manual mode, either
press and release the AUTO TONE button until the
display goes blank or press and release the BASS or
TREB knobs and turn them until the display goes blank.

3-23
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 AUTO TONE to select the setting you prefer.
5. Press and hold one of the six pushbuttons. The sound
will mute. When it returns, release the pushbutton.
Whenever you press that numbered pushbutton, the
station you set will return and the tone you selected
will be automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.Setting the Tone (Bass/Treble)
BASS: Press this knob lightly so it extends. Turn the
knob clockwise to increase bass and counterclockwise to
decrease bass.
TREB (Treble): Press this knob lightly so it extends.
Turn the knob clockwise to increase treble and
counterclockwise to decrease treble. If a station is weak
or noisy, you may want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.
AUTO TONE: This feature allows you to choose
bass and treble equalization settings designed for
country/western, jazz, talk, pop, rock and
classical stations.
Each time you press the AUTO TONE button, this
feature will switch to one of these program types.
To return the bass and treble to the manual mode, either
press and release the AUTO TONE button until the
display goes blank or press and release the BASS or
TREB knobs and turn them until the display goes blank.

3-26 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
PWR (Power): Press this knob to turn the system on
and off.
VOL (Volume): Turn the knob clockwise to increase
volume. Turn it counterclockwise to decrease volume.
AUTO VOL (Automatic Volume): With automatic
volume, your audio system adjusts automatically to
make up for road and wind noise as you drive.
Set the volume at the desired level. Press this button to
select LOW, MEDIUM or HIGH. AVOL will appear on
the display. The volume level should always sound the
same to you as you drive. Each higher volume setting
allows for more volume compensation at faster vehicle
speeds. Then as you drive, automatic volume increases
the volume as necessary to overcome noise at any speed.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
automatic volume, select OFF.
DISP (Display): Press this knob when the ignition is off
to display the clock.