2003 CHEVROLET C/K display

3-20
1 PREV (Previous): Press this pushbutton to go to the
previous track if the current track has been playing for
less than eight seconds. If pressed when the current track
has been playing for more than eight seconds, it will go
to the beginning of the current track. The track number
will appear on the display. If you hold this pushbutton or
press it more than once, the player will continue moving
back through the disc.
2 NEXT: Press this pushbutton to go to the next track.
The track number will appear on the display. If you hold
this pushbutton or press it more than once, the player
will continue moving forward through the disc.
3 REV (Reverse): Press and hold this pushbutton to
reverse quickly within a track. Release it to play the
passage. The display will show elapsed time while
reversing.
4 FWD (Forward): Press and hold this pushbutton to
advance quickly within a track. Release it to play the
passage. The display will show elapsed time while
forwarding.
5 RDM (Random): Press this pushbutton to hear the
tracks in random, rather than sequential, order. RND
will appear on the display. Press this pushbutton again to
turn off random play. OFF will appear on the display.6 RPT (Repeat): Press this pushbutton once to hear
a track over again. RPT will appear on the display.
The current track will continue to repeat. Press this
pushbutton again to turn off repeated play. OFF will
appear on the display.
SEEK : The right arrow is the same as the NEXT
pushbutton, and the left arrow is the same as the PREV
pushbutton. If the arrows are held or pressed more than
once, the player will continue moving forward or
backward through the tracks.
RCL (Recall): Press this button to see the current track
number or how long the current track has been playing.
AM FM: Press this button to listen to the radio when a
CD is playing. The inactive CD will remain safely inside
the radio for future listening.
CD: Press this button to play a compact disc when
listening to the radio. CD will appear on the display.
(Eject): Press this button to eject a CD. Eject
may be activated with either the ignition or radio off.
CDs may be loaded with the radio and ignition off if
this button is pressed first.

3-21
Compact Disc Messages
If the disc comes out, it could be for one of the
following reasons:

You're driving on a very rough road. When the road
becomes smoother, the disc should play.

It's very hot. When the temperature returns to
normal, the disc should play.

The disc is dirty, scratched, wet or upside down.

The air is very humid. If so, wait about an hour and
try again.
If the CD is not playing correctly, for any of the above
reasons, try a known good CD.
If any error occurs repeatedly or if an error can't be
corrected, contact your dealer.
Theft-Deterrent Feature
THEFTLOCK is designed to discourage theft of your
radio. The feature works automatically by learning a
portion of the Vehicle Identification Number (VIN).
If the radio is moved to a different vehicle, it will not
operate and LOC will be displayed.
With THEFTLOCK activated, your radio will not
operate if stolen.
Understanding Radio Reception
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 storms and power lines. Try
reducing the treble to reduce this noise if you ever get it.
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). Tall
buildings or hills can interfere with FM signals, causing
the sound to come and go.

3-23 Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren't, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN to indicate
that you have used your tape player for 50 hours without
resetting the tape clean timer. If this message appears on
the display, your cassette tape player needs to be
cleaned. It will still play tapes, but you should clean it as
soon as possible to prevent damage to your tapes and
player. If you notice a reduction in sound quality, try a
known good cassette to see if the tape or the tape player
is at fault. If this other cassette has no improvement in
sound quality, clean the tape player.
For best results, use a scrubbing action, non
-abrasive
cleaning cassette with pads which scrub the tape head
as the hubs of the cleaner cassette turn. The
recommended cleaning cassette is available through
your dealer (GM Part No. 12344789).The cut tape detection feature of your cassette tape
player may identify the cleaning cassette as a damaged
tape. To prevent the cleaning cassette from being
ejected, use the following steps:
1. Turn the ignition to RUN or ACCESSORY.
2. Turn the radio off.
3. Press and hold the TAPE button for two seconds
until the radio produces one beep. CAS will flash on
the display for five seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer's
recommended cleaning time.
After the cleaning cassette is ejected, the cut tape
detection feature will be active again.
You may also choose a non
-scrubbing action, wet-type
cleaner which uses a cassette with a fabric belt to clean
the tape head. This type of cleaning cassette will not
eject on its own. A non
-scrubbing action cleaner may
not clean as thoroughly as the scrubbing type cleaner.
The use of a non
-scrubbing action, dry-type cleaning
cassette is not recommended.

3-24
After you clean the player, press and hold the eject
button for three seconds to reset the CLN indicator. The
radio will display
--- to show the indicator was reset.
Cassettes are subject to wear and the sound quality
may degrade over time. Always make sure the cassette
tape is in good condition before you have your tape
player serviced.
Care of Your Compact Discs
Handle discs carefully. Store them in their original cases
or other protective cases and away from direct sunlight
and dust. If the surface of a disc is soiled, dampen a
clean, soft cloth in a mild, neutral detergent solution and
clean it, wiping from the center to the edge.
Be sure never to touch the signal surface when handling
discs. Pick up discs by grasping the outer edges or the
edge of the hole and the outer edge.
Care of Your Compact Disc Player
The use of CD lens cleaner discs is not advised, due to
the risk of contaminating the lens of the CD optics with
lubricants internal to the CD mechanism.
Fixed Mast Antenna
The fixed mast antenna can withstand most vehicle
washes without being damaged. If the mast should ever
become slightly bent, you can straighten it out by hand.
If the mast is badly bent, as it might be by vandals, you
should replace it.
Check occasionally to be sure the mast is still tightened
to the fender. If tightening is required, tighten by hand,
then with a wrench one quarter turn.
Chime Level Adjustment
The radio is the vehicle chime producer. The chime is
produced from the driver's side front door speakers. To
change the volume level, press and hold pushbutton 6
with the ignition on and the radio power off. The chime
volume level will change from the normal level to loud,
and HI will be displayed on the radio. To change back
to the default or normal setting, press and hold
pushbutton 6 again. The chime level will change from
the loud level to normal, and LO will be displayed.
Each time the chime volume is changed, three chimes
will sound as an example of the new volume selected.
Removing the radio and not replacing it with a factory
radio or chime module will disable vehicle chimes.

6-26
How to Reset the Change Oil Light
The GM Oil Life System
calculates when to change
your engine oil and filter based on vehicle use. Anytime
your oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation
occurs where you change your oil prior to a change oil
light being turned on, reset the system.
To reset the change oil light, do the following:
1. Turn the ignition key to RUN with the engine off.
2. Fully press and release the accelerator pedal three
times within 10 seconds.
If the change oil light flashes for five seconds, the
system is reset. If the light does not display for five
seconds, you will need to repeat the steps.What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Don't let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good hand
cleaner. Wash or properly throw away clothing or rags
containing used engine oil. See the manufacturer's
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
filter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or
into streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have a
problem properly disposing of your used oil, ask your
dealer, a service station or a local recycling center
for help.

6-29

SAE 15W-40
As shown in the viscosity chart, SAE 15W
-40 is
best for your vehicle. However, you can use SAE
10W
-30 at temperatures above 0F (-18C).
When it's very cold, below 0F (
-18C), you should
use SAE 5W
-40 to improve cold starting.
These numbers on the oil container show its
viscosity, or thickness. Do not use other viscosity
oils such as SAE 10W
-40 or SAE 20W-50.
This doughnut-shaped logo
(symbol) is used on most
oil containers to help you
select the correct oil. It
means that the oil has been
certified by the American
Petroleum Institute.
You should look for this on the oil container, and use
only those oils that display the logo.
GM Goodwrench
 oil of the recommended viscosity
grades meets all the requirements for your vehicle.