2003 CHEVROLET SILVERADO brakes

*1Ð Gasoline Engine and Diesel Engine.
*2Ð Gasoline Engine; ECMRPV Ð Diesel Engine.
*3Ð Gasoline Engine; FUEL HT Ð Diesel Engine.
*4Ð Gasoline Engine; ECM I Ð Diesel Engine.
*5Ð IGN/EDU
Fuses Usage
GLOW PLUGDiesel Glow Plugs and Intake
Air Heater
CUST FEED Gasoline Accessory Power
STUD #1Auxiliary Power (Single
Battery and Diesels Only)/
Dual Battery (TP2) Do not
install fuse.
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power OutletÐRear
Cargo Area and Instrument
Panel
Fuses Usage
STUD 2Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller Battery
Feed
SUNROOF Sunroof
5-115

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) and 200,000 miles (332 000 km) should
be repeated at the same interval after 150,000 miles
(240 000 km) and 200,000 miles (332 000 km) for the life
of this vehicle.
See
Part B: Owner Checks and Services on page 6-12andPart C: Periodic MaintenanceInspections on
page 6-17.
Footnotes
²The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle 's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-18.
Engine Oil and Chassis Lubrication
Scheduled Maintenance
Change engine oil and ®lter as indicated by the GM
Oil Life System (or every 12 months, whichever
occurs ®rst). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL message will
come on. Change your oil as soon as possible within
the next two times you stop for fuel. It is possible that, if
you are driving under the best conditions, the oil life
system may not indicate that an oil change is necessary
for over a year. However, your engine oil and ®lter
must be changed at least once a year and at this time
the system must be reset. Your dealer has GM-trained
service people who will perform this work using
genuine GM parts and reset the system.
6-5

Throttle System Inspection
(V6 Only)
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
Transfer Case and Front Axle
(All-Wheel Drive) Inspection
Every 12 months, or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A ¯uid loss could indicate a problem.
Check and have it repaired, if needed. Check vent
hose at transfer case for kinks and proper installation.
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection
Every 12 months or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A ¯uid loss could indicate a problem;
check and have it repaired, if needed. On manual
shift transfer case, oil the control lever pivot point. Check
vent hose at transfer case for kinks and proper
installation. More frequent lubrication may be required
on off-road use.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
cha®ng, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-18

If NHTSA receives similar complaints, it may open an
investigation, and if it ®nds that a safety defect exists in
a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer or
General Motors.
To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you'll notify us.
Please call us at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
7-9

Audio System(s) (cont.)
Radio with CD............................................3-75
Radio with Six-Disc CD................................3-98
Rear Seat Audio (RSA)...............................3-120
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-72
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-72
Theft-Deterrent Feature...............................3-121
Understanding Radio Reception...................3-123
XMŸ Satellite Radio Antenna System...........3-125
Automatic Headlamp System............................3-15
Automatic Transfer Case..................................2-37
Automatic Transmission Check..........................6-13
Automatic Transmission Shift Lock Control
System Check.............................................6-15
Automatic Transmission...................................2-22
Fluid..................................................5-23, 5-26
Operation...................................................2-25
Auxiliary Battery..............................................4-94
Auxiliary Roof Mounted Lamp Switch.................3-17
B
Backing Up....................................................4-86
BATTERY NOT CHARGING.............................3-65
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-19
Battery Warning Light......................................3-42Battery..........................................................5-47
Before Leaving on a Long Trip.........................4-44
Before You Drive...........................................3-111
Before You Go Off-Roading..............................4-24
Body Lubrication Service..................................6-14
Brake Adjustment............................................5-47
Brake Fluid....................................................5-44
Brake Pedal Travel.........................................5-47
Brake Wear...................................................5-46
Brake............................................................2-44
Parking......................................................2-44
System Inspection.......................................6-18
System Warning Light..................................3-44
Brakes..........................................................5-44
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-20
BUCKLE PASSENGER....................................3-65
BUCKLE SEATBELT.......................................3-65
Bulb Replacement...........................................5-59
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-63
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-61
Halogen Bulbs............................................5-59
Headlamps.................................................5-59
Pickup Box Identi®cation and Fender Marker
Lamps....................................................5-65
Replacement Bulbs......................................5-67
Roof Marker Lamps.....................................5-62
2

Tires (cont.)
Changing a Flat Tire....................................5-80
Dual Tire Operation.....................................5-70
If a Tire Goes Flat.......................................5-79
In¯ation -- Tire Pressure...............................5-69
Inspection and Rotation................................5-71
Uniform Tire Quality Grading.........................5-75
Wheel Alignment and Tire Balance.................5-76
Wheel Replacement.....................................5-76
When It Is Time for New Tires......................5-73
To Use the Engine Coolant Heater....................2-24
Top Strap Anchor Location...............................1-44
Top Strap......................................................1-42
Torque Lock (Automatic Transmission)...............2-48
Total Weight on Your Vehicle's Tires..................4-84
Tow/Haul Mode Light.......................................3-53
Tow/Haul Mode, Overdrive Disable....................3-53
Tow/Haul Mode
(Automatic Transmission)..............................2-28
Towing..........................................................4-95
Power Take-Off (PTO)..................................4-95
Recreational Vehicle.....................................4-55
Towing a Trailer..........................................4-68
Your Vehicle...............................................4-55
TRACTION ACTIVE........................................3-70
Traction.........................................................4-10
Assist System (TAS)....................................4-10
Manual Selectable Ride................................4-12
Off Light.....................................................3-46Traction (cont.)
Trailer Brakes.................................................4-85
Trailer Wiring Harness.....................................4-89
Trailer...........................................................4-67
Recommendations.......................................4-67
TRANS HOT IDLE ENGINE (Allison
Transmission
žOnly).....................................3-71
Transfer Case and Front Axle (Four-Wheel Drive)
Inspection...................................................6-18
Transfer Case........................................5-54, 5-56
TRANSMISSION HOT.....................................3-70
Transmission Operation, Automatic....................2-25
Transmission Operation, Manual........................2-29
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transmission..................................................5-23
Fluid, Automatic..................................5-23, 5-26
Fluid, Manual..............................................5-28
Temperature Gage.......................................3-47
Up-Shift Light..............................................3-43
Transportation Options...................................... 7-7
Traveling to Remote Areas...............................4-26
Trip Information Button....................................3-55
Trip Odometer................................................3-35
Truck-Camper Loading Information....................4-65
Turn and Lane Change Signals.......................... 3-8
TURN SIGNAL ON.........................................3-71
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-87
17