coolant GMC SONOMA 2003 Owner's Guide

Flat Tire........................................................5-67
Flat Tire, Changing.........................................5-68
Fluid
Automatic Transmission................................5-20
Manual Transmission....................................5-23
Power Steering...........................................5-37
Windshield Washer......................................5-38
FM ...............................................................3-67
Fog Lamps ....................................................3-13
Following Distance..........................................4-57
Four-Wheel Drive....................................2-29, 5-48
Front Axle......................................................5-49
Front Map Lamps...........................................3-14
Front Storage Area.........................................2-49
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-8
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage .........................................................3-35
Gasoline Octane........................................... 5-4
Gasoline Specifications.................................. 5-5
Low Warning Light.......................................3-35
System Inspection
.......................................6-31
Fuses
Fuses and Circuit Breakers
...........................5-89
Windshield Wiper
.........................................5-88G
Gage
Check Gages Warning Light..........................3-34
Engine Coolant Temperature.........................3-29
Fuel..........................................................3-35
Oil Pressure...............................................3-32
Speedometer..............................................3-23
Tachometer.................................................3-23
Voltmeter Gage...........................................3-26
Garment Hooks..............................................2-50
Gasoline
Octane........................................................ 5-4
Specifications............................................... 5-5
Getting Familiar with Off-Road Driving................4-16
Glass Surfaces...............................................5-81
Glove Box.....................................................2-41
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-3
Head Restraints............................................... 1-7
Headlamp High/Low-Beam Changer.................... 3-6
Headlamps....................................................5-50
Bulb Replacement.......................................5-50
Electrical System.........................................5-88
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2003 - Sonoma OM

Headlamps (cont.)
Halogen Bulbs............................................5-50
One-Piece Front Turn Signal Lamps...............5-52
Two-Piece Front Turn Signal Lamps...............5-53
Heated Seats................................................... 1-5
Heating.........................................................3-18
Highway Hypnosis...........................................4-34
Hill and Mountain Roads..................................4-34
Hitches..........................................................4-56
Hood
Checking Things Under.................................. 5-8
Release....................................................... 5-9
Horn ............................................................... 3-4
How to Add Coolant to the Coolant
Recovery Tank............................................5-32
How to Add Coolant to the Radiator..................5-34
How to Add Fluid....................................5-22, 5-24
How to Check................................5-20, 5-23, 5-59
How to Check and Add Fluid
............................5-25
How to Check Lubricant
..........................5-47, 5-49
How to Check Power Steering Fluid
..................5-37
How to Inspect the Engine Air Cleaner/Filter
.......5-19
How to Use This Manual
...................................... ii
How to Wear Safety Belts Properly
...................1-15
Hydraulic Clutch
.............................................5-24
Hydraulic Clutch System Check
........................6-27
Hydroplaning
..................................................4-30I
If No Steam Is Coming From Your Engine..........5-29
If Steam Is Coming From Your Engine...............5-28
If the Light Is Flashing.....................................3-30
If the Light Is On Steady.................................3-31
If You Are Stuck in Sand, Mud, Ice or Snow.......4-40
If You Do Decide To Pull A Trailer.....................4-52
If You’re Caught in a Blizzard...........................4-38
Ignition Positions.............................................2-20
Ignition Transmission Lock Check......................6-29
Infants and Young Children, Restraints...............1-32
Inflation–Tire Pressure...................................5-58
Inspection
Brake System.............................................6-32
Engine Cooling System................................6-31
Exhaust System..........................................6-31
Fuel System...............................................6-31
Part C - Periodic Maintenance.......................6-31
Steering, Suspension and Front Drive
Axle Boot and Seal..................................6-31
Throttle System...........................................6-32
Transfer Case and Front Axle
(Four-Wheel Drive)...................................6-32
Installing a Garage Door Opener.......................2-43
Instrument Panel
Cluster.......................................................3-21
Overview..................................................... 3-2
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2003 - Sonoma OM

Stalling on an Incline.......................................4-24
Starter Switch Check.......................................6-28
Starting Your Engine.......................................2-22
Shifting Into................................................2-22
Starting Your VORTEC™2200 L4 Engine............ 6-4
Starting Your VORTEC™4300 V6 Engine..........2-23
Steering.......................................................... 4-8
Steering in Emergencies.................................... 4-9
Steering, Suspension and Front Drive
Axle Boot and Seal Inspection.......................6-31
Steering Tips................................................... 4-8
Storage
Garment Hooks...........................................2-50
Storage Areas
Front Storage Area......................................2-49
Glove Box..................................................2-41
Luggage Carrier..........................................2-50
Overhead Console.......................................2-42
Storing a Flat or Spare Tire and Tools...............5-76
Stuck in Sand, Mud, Ice or Snow......................4-40
Sun Visors.....................................................2-16
Sunglasses Storage Compartment.....................2-46
Sunroof.........................................................2-52
Swing-Out Windows........................................2-16
T
Tachometer....................................................3-23
Tailgate.........................................................2-12Tailgate Lubrication Service..............................6-27
Taillamps.......................................................5-55
Temperature and Compass Display....................2-44
Testing the Alarm............................................2-18
Theft-Deterrent, Radio.....................................3-67
Theft-Deterrent Systems...................................2-17
Content Theft-Deterrent
................................2-17
Passlock
®...................................................2-19
Third Door
.....................................................2-12
Throttle System Inspection
...............................6-32
Tilt Wheel
........................................................ 3-4
Time Delay
....................................................2-39
Tire Inflation Check
.........................................6-26
Tires
.....................................................5-58, 5-84
Buying New Tires
........................................5-62
Chains
.......................................................5-66
Changing a Flat Tire
....................................5-68
Compact Spare Tire
.....................................5-78
If a Tire Goes Flat
.......................................5-67
Inflation–Tire Pressure
...............................5-58
Inspection and Rotation
................................5-60
Uniform Tire Quality Grading
.........................5-63
Wheel Alignment and Tire Balance
.................5-64
Wheel Replacement
.....................................5-65
When It Is Time for New Tires
......................5-61
To Use the Engine Coolant Heater
....................2-24
Top of the Instrument Panel
.............................5-81
Top Strap
......................................................1-41
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2003 - Sonoma OM