2003 CHEVROLET SILVERADO display

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.
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.
XMŸ Satellite Radio Service
(48 Contiguous US States)
XMŸ Satellite Radio gives you digital radio reception
from coast to coast. Just as with FM, tall buildings
or hills can interfere with satellite radio signals, causing
the sound to come and go. Your radio may display
NO SIGNAL to indicate interference.
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 CLEAN 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 dealership.
3-123

When cleaning the cassette tape player with the
recommended non-abrasive cleaning cassette, it is
possible that the cassette may eject, because the cut
tape detection feature on your radio may recognize it as
a broken tape, in error. To prevent the cleaning
cassette from being ejected, use the following steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press and hold the TAPE DISC button for ®ve
seconds. READY will appear on the display and
the cassette symbol will ¯ash for ®ve seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer's
recommended cleaning time.
When the cleaning cassette has been ejected, the cut
tape detection feature is 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.After you clean the player, press and hold the eject
button for ®ve seconds to reset the CLEAN indicator.
The radio will display --- or CLEANED 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 CDs and DVDs
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 side without writing when
handling discs. Pick up discs by grasping the outer
edges or the edge of the hole and the outer edge.
Care of Your CD and DVD 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.
3-124

Cleaning the Video Screen
Pour some isopropyl or rubbing alcohol on a clean cloth
and gently wipe the video screen. Do not spray
directly onto the screen and do not press too hard or
too long on the video screen.
Fixed Mast Antenna
The ®xed mast antenna can withstand most car 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 cowl. If tightening is required, tighten by hand,
then with a wrench one quarter turn.
XMŸ Satellite Radio Antenna
System (48 Contiguous US States)
Your XMŸ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
Chime Level Adjustment
The radio is the vehicle chime producer. 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 LOUD
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 NORMAL 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.
3-125

Supplemental Brake Assist System
If your vehicle has vacuum assist power brakes, it is also
equipped with a supplemental brake assist system
that supplies additional vacuum to the vacuum brake
booster if engine vacuum is reduced. Under certain
conditions, the supplemental brake assist system may
run brie¯y after starting your vehicle or when you
apply and release the brake pedal and it may continue
to run even after you have removed your foot from
the brake pedal. When the supplemental brake assist
system is operating, you may hear a motor running
or feel a slight vibration in the steering wheel or brake
pedal. This indicates that the supplemental brake
assist system is working to supply additional vacuum for
your vacuum assist power brakes. This is a normal
operation of your brake system and does not require that
the brake system be serviced.Each time you start your vehicle and accelerate to
10 mph, the supplemental brake assist system
will perform a self-diagnostic check of the system and
you may hear or feel the supplemental brake assist
motor run brie¯y. While you are driving your vehicle, the
supplemental brake assist system monitors itself to
ensure that it is operating properly. If there is a problem
with the supplemental brake assist system, the
SERVICE BRAKE BOOSTER message will be displayed
on the Driver Information Center. See
DIC Warnings
and Messages on page 3-65.
If your supplemental brake assist system runs every
time you apply and release the brake pedal or you notice
that the brake pedal has suddenly become much
harder to push and the vehicle takes longer to stop, you
should have your vehicle serviced as soon as possible.
4-9

How to Reset the CHANGE ENGINE OIL
Message System
The GM Oil Life System calculates when to change
your engine oil and ®lter 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 can change your oil prior to
a CHANGE ENGINE OIL message being turned on,
reset the system.
To reset the CHANGE ENGINE OIL message, see ªGM
Oil Life Systemº under
DIC Operation and Displays
on page 3-55for vehicles equipped with the DIC, or 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 ®ve seconds.
If the OIL LIFE RESET message ¯ashes for 10 seconds,
the system is reset.
If the system does not reset, try the procedure once
again. If it still does not reset, see your dealer for
service.
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 dispose of 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
®lter 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.
5-20

Coolant Surge Tank Pressure Cap
SeeEngine Compartment
Overview on page 5-10for
more information on
location.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank.
Notice:Your pressure cap is a pressure-type cap
and must be tightly installed to prevent coolant loss
and possible engine damage from overheating.
See ªCapacities and Speci®cationsº for more
information.
Engine Overheating
You will ®nd a coolant temperature gage on your
vehicle's instrument panel. SeeEngine Coolant
Temperature Gage on page 3-47. In addition, you will
®nd a LOW COOLANT LEVEL, ENGINE OVERHEATED
and a REDUCED ENGINE POWER message in the
Driver Information Center on the instrument panel. See
Driver Information Center (DIC) on page 3-54.
Overheated Engine Protection
Operating Mode (V8 Engines Only)
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is displayed, an
overheat protection mode which alternates ®ring
groups of cylinders helps prevent engine damage. In
this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle to
be driven to a safe place in an emergency. Driving
extended miles (km) and/or towing a trailer in the
overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair the
cause of coolant loss, change the oil and reset the oil
life system. See ªEngine Oilº in the Index.
5-33

D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-23, 3-31
Delayed Locking............................................... 2-9
Dinghy Towing................................................4-55
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-57
Dome Lamps.................................................3-18
Door............................................................... 2-9
Delayed Locking........................................... 2-9
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Rear Doors.................................................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-54
DIC Operation and Displays..........................3-55
DIC Warnings and Messages........................3-65
Driver............................................................1-16
Position, Safety Belt.....................................1-16
Driving Across an Incline..................................4-34
Driving Downhill..............................................4-32
Driving in Mud, Sand, Snow or Ice....................4-36
Driving in Water..............................................4-37
Driving On Grades..........................................4-87
Driving on Off-Road Hills.................................4-28
Driving on Snow or Ice....................................4-49Driving Through Deep Standing Water...............4-41
Driving Through Flowing Water.........................4-41
Driving Uphill..................................................4-29
Driving with a Trailer.......................................4-86
Driving..........................................................4-38
At Night.....................................................4-38
City...........................................................4-42
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-43
Hill and Mountain Roads..............................4-46
In Rain and on Wet Roads...........................4-39
Winter........................................................4-48
Dual Automatic Climate Control System.............3-25
Dual Climate Control System............................3-22
Dual Stage Air Bags........................................1-68
Dual Tire Operation.........................................5-70
DVD ............................................................3-125
Cleaning the Video Screen..........................3-125
Distortion..................................................3-122
Rear Seat Entertainment System..................3-111
DVD Player..................................................3-111
E
Easy Exit Seat...............................................2-67
Electrical System...........................................5-109
Add-On Equipment.....................................5-109
Fuses and Circuit Breakers.........................5-110
5

Electrical System (cont.)
Power Windows and Other Power Options....5-109
Windshield Wiper Fuses.............................5-109
Electrochromic Mirror Operation................2-54, 2-57
Electronic Transfer Case..................................2-41
Emissions Inspection and Maintenance
Programs...................................................3-51
ENGINE COOLANT HOT.................................3-66
Engine Coolant Level Check.............................6-12
Engine Hour Meter Display...............................3-35
Engine Oil Additives........................................5-19
Engine Oil and Chassis Lubrication Scheduled
Maintenance................................................. 6-5
Engine Oil Level Check...................................6-12
ENGINE OVERHEATED..................................3-66
Engine..........................................................5-21
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-47
Check and Service Engine Soon Light............3-49
Compartment Overview................................5-10
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-47
Coolant......................................................5-30
Cooling System Inspection............................6-17
Exhaust.....................................................2-51
Fan Noise..................................................5-41
Oil .............................................................5-16
Overheating................................................5-33Engine (cont.)
Starting......................................................2-22
Entertainment System....................................3-125
Cleaning the Video Screen..........................3-125
DVD Distortion..........................................3-122
Entry Lighting.................................................3-18
Environmental Concerns..................................4-25
Exit Lighting...................................................3-18
Express Down Windows..................................2-16
Extended Cab and Crew Cab...........................1-50
Extended Cab................................................1-53
Extender, Safety Belt.......................................1-31
Exterior Lamps...............................................3-14
F
Filter.............................................................5-21
Engine Air Cleaner......................................5-21
Finding a PTY Station
(RDS and XMŸ).......................3-78, 3-88, 3-101
Finding a Station....................3-73, 3-76, 3-86, 3-99
Finish Care..................................................5-104
Finish Damage.............................................5-106
Five-Speed (VORTECŸ 4300 V6 and
4800 V8 Engines)........................................2-30
Five-Speed (VORTECŸ 6000 V8 Engine)...........2-29
Fixed Mast Antenna.......................................3-125
6