2003 CHEVROLET SILVERADO air conditioning

Outlet Adjustment
Use the air outlets located in the center and on the side
of your instrument panel to direct the air¯ow.
Your vehicle has air outlets that allow you to adjust the
direction and amount of air¯ow inside the vehicle.
Move the louvers up or down. Use the thumbwheel next
to or underneath the outlet to close the louvers. For
the most efficient air¯ow and temperature control, keep
the outlet in the fully opened position.
Rear seat outlets can be used to adjust air¯ow toward
either seating area, the ¯oor or upward. Move the center
louvers up or down to direct the air¯ow.
Operation Tips
·
Keep the hood and front air inlets 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.
·Keep the air path under the front seats clear
of objects. This helps air to circulate throughout your
vehicle.
·Adding outside equipment to the front of your
vehicle, such as hood-air de¯ectors, etc., may affect
the performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
3-32

Fuses Usage
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Not Used
AUX PWRAuxiliary Power Outlet Ð
Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster, Air
Conditioning Relay, Turn
Signal/Hazard Switch, Starter
Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control SystemFuses Usage
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
02B Oxygen Sensors
SIRSupplemental In¯atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
5-116

Fuses Usage
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Not Used
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
Rear Heated Seats,
HomeLink
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting System
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamp RelayFuses Usage
FOG LP Fog Lamps
HORN Horn Relay
W/S WASHWindshield Washer Pump
Relay
W/S WASH Windshield Washer Pump
INFOOnStar/Rear Seat
Entertainment
RADIO AMP Radio Ampli®er
RH HID Not Used
HORN Horn
EAP Not Used
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-117

ApplicationCapacities
English Metric
VORTECŸ 6000 V8 (Vin N) 6.0 quarts (5.7 L)
VORTECŸ 8100 V8 (Vin G) 6.5 quarts (6.1 L)
Fuel Tank
Short Bed 26.0 gallons (98 L)
Short-Short Box Crew Cab 26.0 gallons (98 L)
Long Bed 34.0 gallons 128 L
Chassis Cab (pickup Box Delete) 34.0 gallons (128 L)
Chassis Cab 350027.0 gallons
23.0 gallons(102 L) (front)
(87 L) (rear)
Chassis Cab 3500 (California)24.0 gallons
23.0 gallons(90 L) (front)
(87 L) (rear)
Chassis Cab 3500 27.0 gallons (102 L (front)
Chassis Cab 3500 (California) 27.0 gallons (102 L) (front)
Chassis Cab 3500HD23.0 gallons
18.0 gallons(87 L) (front)
(68 L) (rear)
Chassis Cab 3500HD 23.0 gallons (87 L) (front)
Air Conditioning Refrigerant Capacity
Air Conditioning Refrigerant R-134a 1.6 lbs (0.7 kg)
5-120

Part C: Periodic
MaintenanceInspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).
You should let your dealer's
service department do these jobs. Make sure any
necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual. SeeService Publications
Ordering Information on page 7-9.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, cha®ng, etc.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the ¯oor pan or could let
exhaust fumes into the vehicle. See
Engine Exhaust
on page 2-51.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-17

A
Accessory Power Outlets.................................3-19
Adding a Snow Plow or Similar Equipment.........4-61
Adding Washer Fluid.......................................5-43
Additional Program Information........................... 7-8
Additives, Fuel................................................. 5-5
Add-On Electrical Equipment...........................5-109
Add-On Equipment..........................................4-60
Adjusting the Speakers
(Balance/Fade)..................3-74, 3-78, 3-88, 3-101
After Off-Road Driving.....................................4-37
Air Bag Systems.............................................1-64
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-80
Air Bag Off Switch.......................................1-71
How Does an Air Bag Restrain?....................1-69
Passenger Sensing System...........................1-76
Servicing Your Air Bag-Equipped Vehicle.........1-80
What Makes an Air Bag In¯ate?....................1-69
What Will You See After an Air Bag In¯ates?......1-70
When Should an Air Bag In¯ate?...................1-68
Where Are the Air Bags?..............................1-66
Air Bag .........................................................3-37
Off Light.....................................................3-37
Passenger Status Indicator...........................3-40
Readiness Light..........................................3-36
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-30
All-Wheel Drive (AWD) System.........................2-44All-Wheel Drive...............................................5-54
AM-FM Radio.................................................3-72
AM .............................................................3-123
Antenna, Fixed Mast......................................3-125
Antenna, XMŸ Satellite Radio Antenna
System.....................................................3-125
Anti-Lock Brake, System Warning Light..............3-45
Anti-lock Brake System..................................... 4-6
Appearance Care..........................................5-100
Care of Safety Belts...................................5-103
Chemical Paint Spotting..............................5-106
Cleaning the Inside of Your Vehicle..............5-100
Cleaning the Outside of Your Vehicle............5-103
Finish Damage..........................................5-106
Sheet Metal Damage..................................5-105
Underbody Maintenance.............................5-106
Vehicle Care/Appearance Materials...............5-107
Weatherstrips............................................5-103
Approaching a Hill..........................................4-28
Ashtrays........................................................3-20
Audio Output................................................3-117
Audio System(s).............................................3-71
AM-FM Radio.............................................3-72
Audio Steering Wheel Controls....................3-122
Care of Your Cassette Tape Player...............3-123
Care of Your CD and DVD Player................3-124
Care of Your CDs and DVDs.......................3-124
Chime Level Adjustment.............................3-125
Fixed Mast Antenna...................................3-125
Radio with Cassette and CD.........................3-85
1