2003 CHEVROLET TAHOE power steering

Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering ¯uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A ¯uid loss in this system
could indicate a problem. Have the system inspected
and repaired. See
Engine Compartment Overview
on page 5-14for reservoir location. 8100 Engines
All Other Engines
5-43

How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then remove
the cap again and look at the ¯uid level on the dipstick.
The level should be at the FULL COLD mark.
If necessary, add only enough ¯uid to bring the level up
to the mark.
What to Use
To determine what kind of ¯uid to use, seePart D:
Recommended Fluids and Lubricants on page 6-18.
Always use the proper ¯uid. Failure to use the proper
¯uid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer ¯uid, be sure to read
the manufacturer's instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a ¯uid that has
sufficient protection against freezing. See
Engine
Compartment Overview on page 5-14for reservoir
location.
Adding Washer Fluid
Open the cap with the
washer symbol on it. Add
washer ¯uid until the
tank is full.
Notice:
·When using concentrated washer ¯uid, follow
the manufacturer's instructions for adding
water.
·Don't mix water with ready-to-use washer ¯uid.
Water can cause the solution to freeze and
damage your washer ¯uid tank and other parts
of the washer system. Also, water doesn't
clean as well as washer ¯uid.
·Fill your washer ¯uid tank only three-quarters
full when it's very cold. This allows for
expansion if freezing occurs, which could
damage the tank if it is completely full.
·Don't use engine coolant (antifreeze) in your
windshield washer. It can damage your
washer system and paint.
5-44

Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.
Device Usage
SEO Special Equipment Option
TRAILER Trailer Brake Wiring
UPFIT Up®tter (Not Used)
SL RIDERide Control Harness
Connection
HDLR 2 Headliner Wiring Connector
BODY Body Wiring Connector
DEFOG Rear Defogger Relay
HDLNR 1 Headliner Wiring Connector 1
SPARE RELAY Not Used
CB SEATDriver and Passenger Seat
Module Circuit Breaker
CB RT DOORRight Power Window Circuit
Breaker
SPARE Not Used
INFOInfotainment Harness
Connection
5-112

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 7-11.
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 2-43.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
6-16

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-18.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-29.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Automatic
TransmissionDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front Axle
(Four-Wheel
Drive)SAE 80W-90 Axle Lubricant (GM
Part No. U.S. 1052271, in Canada
10950849 or equivalent).
Front Axle
(All-Wheel
Drive)SAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455) or
equivalent meeting GM Speci®cation
9986115.
6-18

A
Accessory Power Outlets.................................3-19
Adding Washer Fluid.......................................5-44
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-108
Adjustable Throttle and Brake Pedal..................2-24
Adjusting the Speakers (Balance/Fade).....3-75, 3-79,
3-90, 3-104
After Off-Road Driving.....................................4-40
Air Bag Systems.....................................1-73, 1-80
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-88
How Does an Air Bag Restrain?....................1-80
Passenger Sensing System...........................1-83
Servicing Your Air Bag-Equipped Vehicle.........1-87
What Makes an Air Bag In¯ate?....................1-80
What Will You See After an Air Bag In¯ates?......1-81
When Should an Air Bag In¯ate?...................1-79
Where Are the Air Bags?..............................1-76
Air Bag .........................................................3-39
Passenger Status Indicator...........................3-39
Readiness Light..........................................3-39
Air Cleaner/Filter, Engine.................................5-23
Air Conditioning..............................................3-28
All-Wheel Drive with Stabilitrak
ž........................2-34All-Wheel Drive...............................................5-55
AM-FM Radio.................................................3-73
AM .............................................................3-127
Antenna, Fixed Mast......................................3-129
Antenna, XMŸ Satellite Radio
Antenna System........................................3-129
Anti-Lock Brake, System Warning Light..............3-44
Anti-lock Brake System..................................... 4-7
Appearance Care............................................5-99
Care of Safety Belts...................................5-102
Chemical Paint Spotting..............................5-105
Cleaning the Inside of Your Vehicle................5-99
Cleaning the Outside of Your Vehicle............5-102
Finish Damage..........................................5-104
Sheet Metal Damage..................................5-104
Underbody Maintenance.............................5-105
Vehicle Care/Appearance Materials...............5-105
Weatherstrips............................................5-102
Approaching a Hill..........................................4-30
Ashtrays........................................................3-20
Audio Output................................................3-121
Audio System(s).............................................3-72
AM-FM Radio.............................................3-73
Audio Steering Wheel Controls....................3-126
Care of Your Cassette Tape Player...............3-127
Care of Your CD and DVD Player................3-129
1

Engine (cont.)
Coolant Temperature Gage...........................3-45
Coolant......................................................5-29
Cooling System Inspection............................6-17
Exhaust.....................................................2-43
Fan Noise..................................................5-42
Oil .............................................................5-18
Overheating................................................5-33
Starting......................................................2-23
Entering or Exiting the Third Row Seats.............. 1-9
Entertainment System....................................3-129
Cleaning the Video Screen..........................3-129
DVD Distortion..........................................3-126
Entry Lighting.................................................3-17
Environmental Concerns..................................4-27
Erasing HomeLink
žButtons..............................2-60
Exit Lighting...................................................3-17
Express-Down Windows...................................2-17
Extender, Safety Belt.......................................1-46
Exterior Lamps...............................................3-14
F
Filter.............................................................5-23
Engine Air Cleaner......................................5-23
Finding a PTY Station
(RDS and XMŸ).......................3-80, 3-91, 3-104Finding a Station..................3-74, 3-78, 3-89, 3-102
Finish Care..................................................5-103
Finish Damage.............................................5-104
Fixed Mast Antenna.......................................3-129
Flash-To-Pass.................................................. 3-8
Flat Tire, Changing.........................................5-77
Flat Tire........................................................5-76
Fluid.............................................................5-26
Automatic Transmission................................5-26
Power Steering...........................................5-43
Windshield Washer......................................5-44
FM Stereo....................................................3-127
Fog Lamps....................................................3-16
Folding the Seatback.......................................1-16
Folding the Seatbacks.....................1-10, 1-12, 1-21
Following Distance..........................................4-74
Footnotes........................................................ 6-5
Four-Wheel Drive....................................2-29, 5-57
Four-Wheel-Drive Light....................................3-51
Front Axle Locking Feature...............................2-30
Front Axle......................................................5-58
Front Reading Lamps......................................3-18
Front Storage Area.........................................2-61
Frontal Air Bags.............................................1-79
Fuel Information Button....................................3-57
FUEL LEVEL LOW.........................................3-67
7

Hill and Mountain Roads..................................4-49
Hitches..........................................................4-72
HomeLink Transmitter, Programming..................2-58
HomeLink
žTransmitter....................................2-57
Hood............................................................5-12
Checking Things Under................................5-12
Release.....................................................5-12
Horn............................................................... 3-7
How to Add Coolant to the Coolant Surge Tank . . 5-38
How to Add Fluid............................................5-29
How to Check Lubricant...................................5-56
How to Check Power Steering Fluid..................5-44
How to Check........................................5-26, 5-68
How to Inspect...............................................5-24
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-29
Hydroplaning..................................................4-43
I
If No Steam Is Coming From Your Engine..........5-35
If Steam Is Coming From Your Engine...............5-34
If the Light is Flashing.....................................3-48
If the Light Is On Steady.................................3-49
If You Are Stuck in Sand, Mud, Ice or Snow.......4-56If You Do Decide To Pull A Trailer.....................4-66
If You're Caught in a Blizzard...........................4-54
Ignition Positions.............................................2-22
Ignition Transmission Lock Check......................6-14
Infants and Young Children, Restraints...............1-49
In¯ation -- Tire Pressure..................................5-68
Inspection......................................................6-17
Brake System.............................................6-17
Engine Cooling System................................6-17
Exhaust System..........................................6-16
Fuel System...............................................6-16
Part C - Periodic Maintenance.......................6-16
Steering and Suspension..............................6-16
Transfer Case and Front Axle
(Four-Wheel Drive)...................................6-17
Instrument Panel Brightness.............................3-17
Instrument Panel Fuse Block..........................5-109
Instrument Panel.............................................3-37
Cluster.......................................................3-37
Overview..................................................... 3-4
Interior Lamps................................................3-17
J
Jump Starting.................................................5-49
9