2005 CHEVROLET SILVERADO engine

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged.
Make sure there is room in front of your
vehicle in case it begins to roll. Be ready to
apply the regular brake at once should the
vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
To check the parking brake’s holding ability:
With the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-13

Recommended Fluids and
Lubricants (Gasoline Engine)
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine,
see the maintenance schedule section in the
DURAMAX
®Diesel Engine Supplement.
Fluids and lubricants identied below by name,
part number, or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
®
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil (Gasoline
Engine) on page 5-20.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
coolant. SeeEngine Coolant on
page 5-35.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherGM Optikleen
®Washer Solvent.
Hydraulic
Clutch System
(5-Speed
Trans.)Hydraulic Clutch Fluid
(GM Part No. U.S. 12345347,
in Canada 10953517) or equivalent
DOT-3 brake uid.
Hydraulic
Clutch System
(6-Speed
Trans.)Hydraulic Clutch Fluid. Use only
GM Part No. U.S. 88958860,
in Canada 88901244, Super DOT-4
brake uid.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Manual
Transmission
(5-Speed with
Low Gear,
RPO MW3)GM Goodwrench
®Synthetic
Manual Transmission Fluid
(GM Part No. U.S. 12346190,
in Canada 10953477) or equivalent
SAE 75W-85 GL-4 gear oil.
Manual
Transmission
(5-Speed
without
Low Gear,
RPO MG5)Synchromesh Transmission Fluid
(GM Part No. U.S. 12345349,
in Canada 10953465).
6-14

Normal Maintenance Replacement Parts (Gasoline Engine)
Replacement parts identied below by name, part number, or specication can be obtained from your GM dealer.
If your vehicle has a diesel engine see the maintenance schedule section in the DURAMAX®Diesel Engine
Supplement.
Part GM Part Number ACDelco®Part Number
Engine Air Cleaner/Filter
High Capacity 25313349 A1518C
Standard 25313348* A1519C*
Oil Filter
4300 V6 25010792 PF47
4800 V8; 5300 V8; 6000 V8 88984215 PF46
8100 V8 25324052 PF454
Spark Plugs
4300 V6 25162556 41–932
4800 V8; 5300 V8; 6000 V8 12571164 41–985
8100 V8 12578277 41–983
Wiper Blades (ITTA Type)
22 inches (56.0 cm)15153642 —
*A1518C high-capacity air cleaner lter may be substituted.
6-17

Please contact your dealer for specic information about
availability. All Courtesy Transportation arrangements
will be administered by appropriate dealer personnel.
Canadian Vehicles:For warranty repairs during
the Complete Vehicle Coverage period of the General
Motors of Canada New Vehicle Limited Warranty,
alternative transportation may be available under the
Courtesy Transportation Program. Please consult
your dealer for details.
General Motors reserves the right to unilaterally modify,
change or discontinue Courtesy Transportation at
any time and to resolve all questions of claim eligibility
pursuant to the terms and conditions described
herein at its sole discretion.
Vehicle Data Collection and
Event Data Recorders
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that
monitor and control several aspects of the vehicle’s
performance. Your vehicle uses on-board vehicle
computers to monitor emission control components to
optimize fuel economy, to monitor conditions for airbagdeployment and, if so equipped, to provide anti-lock
braking and to help the driver control the vehicle
in difficult driving situations. Some information may be
stored during regular operations to facilitate repair
of detected malfunctions; other information is stored only
in a crash event by computer systems, such as those
commonly called event data recorders (EDR).
In a crash event, computer systems, such as the
Airbag Sensing and Diagnostic Module (SDM) in your
vehicle may record information about the condition of the
vehicle and how it was operated, such as data related
to engine speed, brake application, throttle position,
vehicle speed, safety belt usage, airbag readiness,
airbag performance, and the severity of a collision.
If your vehicle is equipped with QUADRASTEER™
steering performance, including yaw rate, steering wheel
angle, and lateral acceleration, is also recorded.
This information has been used to improve vehicle
crash performance and may be used to improve crash
performance of future vehicles and driving safety.
Unlike the data recorders on many airplanes, these
on-board systems do not record sounds, such as
conversation of vehicle occupants.
7-9

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 call them at
1-800-333-0510 or write to:
Transport Canada
Place de Ville Tower C
330 Sparks Street
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 will notify
General Motors. Please call the Chevrolet Customer
Assistance Center at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170In 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.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for
GM transmissions, transaxles, and transfer cases.
7-11

A
Accessory Power Outlet(s)...............................3-19
Adding a Snow Plow or Similar Equipment.........4-56
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-78
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-123
Air Cleaner/Filter, Engine.................................5-25
Air Conditioning..............................3-20, 3-22, 3-24
Airbag
Off Light.....................................................3-34
Passenger Status Indicator...........................3-36
Readiness Light..........................................3-34
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-63
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-78
Airbag Off Switch........................................1-70
How Does an Airbag Restrain?......................1-68
Passenger Sensing System...........................1-73
Servicing Your Airbag-Equipped Vehicle..........1-78
What Makes an Airbag Inate?......................1-68
What Will You See After an Airbag Inates?....1-68
When Should an Airbag Inate?....................1-66
Where Are the Airbags?...............................1-64
All-Wheel Drive...............................................5-57
All-Wheel Drive (AWD) System.........................2-51
AM-FM Radio.................................................3-70
Antenna, Fixed Mast......................................3-127Antenna, XM™ Satellite Radio Antenna
System.....................................................3-127
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-41
Appearance Care..........................................5-112
Aluminum or Chrome-Plated Wheels.............5-118
Care of Safety Belts...................................5-116
Chemical Paint Spotting..............................5-120
Cleaning Exterior Lamps/Lenses..................5-117
Cleaning the Inside of Your Vehicle..............5-113
Fabric/Carpet............................................5-114
Finish Care...............................................5-117
Finish Damage..........................................5-120
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-115
Leather....................................................5-115
Sheet Metal Damage..................................5-119
Tires........................................................5-119
Underbody Maintenance.............................5-120
Vehicle Care/Appearance Materials...............5-121
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-116
Windshield and Wiper Blades......................5-118
Ashtray(s)......................................................3-20
Audio System(s).............................................3-69
AM-FM Radio.............................................3-70
Audio Steering Wheel Controls....................3-124
Care of Your Cassette Tape Player...............3-125
Care of Your CD and DVD Player................3-127
Care of Your CDs and DVDs .......................3-126
1

Cargo Lamp...................................................3-19
Center Console Storage Area...........................2-75
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-68
Center Passenger Position, Safety Belts.............1-23
Chains, Tire...................................................5-89
Check
Engine Light...............................................3-44
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-120
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-45
Older Children.............................................1-30
Securing a Child Restraint Designed for
the LATCH System...................................1-47
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-47
Securing a Child Restraint in the Center
Front Seat Position...................................1-51
Securing a Child Restraint in the Center
Rear Seat Position...................................1-49
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab)..................1-52
Securing a Child Restraint in the
Right Front Seat Position (Regular
and Extended Cab)..........................1-54, 1-59Child Restraints (cont.)
Top Strap...................................................1-40
Top Strap Anchor Location............................1-42
Where to Put the Restraint...........................1-38
Chime Level Adjustment.................................3-127
Cigarette Lighter.............................................3-20
Cleaning
Aluminum or Chrome-Plated Wheels.............5-118
Exterior Lamps/Lenses................................5-117
Fabric/Carpet............................................5-114
Finish Care...............................................5-117
Inside of Your Vehicle.................................5-113
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-115
Leather....................................................5-115
Tires........................................................5-119
Underbody Maintenance.............................5-120
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-116
Windshield and Wiper Blades......................5-118
Climate Control System...................................3-20
Dual ..........................................................3-22
Dual Automatic............................................3-24
Outlet Adjustment........................................3-30
Clutch, Hydraulic.............................................5-34
Coinholder(s)..................................................2-75
Comfort Guides, Rear Safety Belt.....................1-27
Content Theft-Deterrent....................................2-19
Control of a Vehicle.......................................... 4-5
3

Coolant
Engine Temperature Gage............................3-42
Heater, Engine............................................2-25
Surge Tank Pressure Cap.............................5-38
Cooling System..............................................5-40
Cruise Control................................................3-10
Cruise Control Light........................................3-47
Cupholder(s)..................................................2-75
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Locking.............................................2-10Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-18
Dome Lamps .................................................3-17
Door
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-13
Rear Doors.................................................2-14
Driver
Position, Safety Belt.....................................1-15
Driver Information Center (DIC).........................3-50
DIC Operation and Displays..........................3-51
DIC Vehicle Customization............................3-63
DIC Warnings and Messages........................3-54
Driving
At Night.....................................................4-35
City ...........................................................4-38
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-39
Hill and Mountain Roads..............................4-42
In Rain and on Wet Roads...........................4-36
Off-Road ....................................................4-20
Recovery Hooks..........................................4-49
Rocking Your Vehicle to Get it Out.................4-48
Winter........................................................4-44
4