2004 PONTIAC GTO check engine light

If you want to get service information, seeService
Publications Ordering Information on page 7-11.
Owner Checks and Services on page 6-9tells you what
should be checked, when to check it and what you
can easily do to help keep your vehicle in good
condition.
The proper replacement parts, fluids and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-13andNormal Maintenance Replacement
Parts on page 6-15. When your vehicle is serviced,
make sure these are used. All parts should be replaced
and all necessary repairs done before you or anyone
else drives the vehicle. We recommend the use of
genuine GM parts.
Scheduled Maintenance
When the CHANGE OIL SOON light comes on, it
means that service is required for your vehicle. Have
your vehicle serviced as soon as possible within the next
600 miles (1 000 km). It is possible that, if you are
driving under the best conditions, the engine oil
life system may not indicate that vehicle service is
necessary for over a year. However, your engine oil and
filter must be changed at least once a year and at
this time the system must be reset. Your GM
Goodwrench dealer has GM-trained service technicians
who will perform this work using genuine GM parts
and reset the system.If the engine oil life system is ever reset accidentally,
you must service your vehicle within 3,000 miles
(5 000 km) since your last service. Remember to reset
the oil life system whenever the oil is changed. See
Engine Oil on page 5-13for information on the Engine
Oil Life System and resetting the system.
When the CHANGE OIL SOON light appears, certain
services, checks and inspections are required. Required
services are described in the following for
“MaintenanceI” and “MaintenanceII.” Generally, it is
recommended that your first service be MaintenanceI,
your second service be MaintenanceIIand that you
alternate MaintenanceIand MaintenanceIIthereafter.
However, in some cases, MaintenanceIImay be
required more often.
MaintenanceI— Use MaintenanceIif the light comes
on within ten months since vehicle was purchased or
MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light comes on ten months
or more since the last service or if the light has not
come on at all for one year.
6-4

Check
Engine Light...............................................3-29
Check Engine Light.........................................3-29
Checking Coolant............................................5-27
Checking Engine Oil........................................5-13
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-84
Child Restraints
Child Restraint Systems...............................1-32
Infants and Young Children...........................1-28
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-38
Older Children.............................................1-26
Securing a Child Restraint Designed for the
LATCH System........................................1-40
Securing a Child Restraint in a Rear Seat
Position..................................................1-40
Securing a Child Restraint in the Right Front
Seat Position...........................................1-43
Top Strap...................................................1-36
Top Strap Anchor Location............................1-37
Where to Put the Restraint...........................1-35
Cigarette Lighter.............................................3-18
Cleaning
Inside of Your Vehicle..................................5-79
Outside of Your Vehicle................................5-82
Underbody Maintenance...............................5-84
Weatherstrips..............................................5-81Cleaning Aluminum Wheels..............................5-83
Cleaning Exterior Lamps/Lenses.......................5-82
Cleaning Fabric/Carpet....................................5-79
Cleaning Glass Surfaces..................................5-81
Cleaning Interior Plastic Components.................5-81
Cleaning Leather............................................5-80
Cleaning the Top of the Instrument Panel...........5-81
Cleaning Tires................................................5-84
Cleaning Vinyl................................................5-80
Cleaning Windshield and Wiper Blades..............5-83
Climate Control System...................................3-19
Outlet Adjustment........................................3-22
Clutch, Hydraulic.............................................5-24
Compact Spare Tire........................................5-77
CONFIRMATION BEEPS.................................2-35
Content Theft-Deferrent....................................2-14
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-28
Cooling System..............................................5-31
COURTESY LAMP TIMEOUT...........................2-36
Courtesy Lamps.............................................3-15
Cruise Control.................................................. 3-9
Cupholder(s)..................................................2-31
Current and Past Model Order Forms................7-12
3

E
Electrical System
Add-On Equipment......................................5-87
Fuses and Circuit Breakers...........................5-87
Emergency Trunk Release Handle.....................2-10
Emissions Inspection and Maintenance
Programs...................................................3-31
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-41
Change Engine Oil Light...............................3-33
Check and Service Engine Soon Light............3-29
Coolant......................................................5-25
Coolant Temperature Gage...........................3-28
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-17
Engine Compartment Fuse Block......................5-90
Engine Oil Additives........................................5-16
Entering Programming Mode............................2-33
Entry Lighting.................................................3-15
Event Data Recorders (EDR)............................. 7-9
EXIT OPTIONS MENU....................................2-37Exiting Programming Mode...............................2-37
Express-Down Window....................................2-12
Extender, Safety Belt.......................................1-25
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-18
Finding a Station............................................3-43
Finish Care....................................................5-82
Finish Damage...............................................5-84
Flash-to-Pass Feature....................................... 3-7
Flat Tire........................................................5-70
Flat Tire, Changing.........................................5-71
Fluid
Automatic Transmission................................5-19
Manual Transmission....................................5-23
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM ...............................................................3-54
Fog Lamp Light..............................................3-33
Fog Lamps....................................................3-14
Front Reading Lamps......................................3-16
Front Storage Area.........................................2-31
5

Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-35
Gasoline Octane........................................... 5-5
Gasoline Specifications.................................. 5-5
FUEL REMAINING..........................................3-37
FUEL USED..................................................3-37
Fuses
Fuses and Circuit Breakers...........................5-87
G
Gage
Engine Coolant Temperature.........................3-28
Fuel..........................................................3-35
Speedometer..............................................3-25
Tachometer.................................................3-25
Gasoline
Octane........................................................ 5-5
Specifications............................................... 5-5
Glove Box.....................................................2-30
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-4
Head Restraints............................................... 1-4
Headlamp High/Low-Beam Changer.................... 3-6
Headlamps....................................................5-47
Bulb Replacement.......................................5-47
Front Turn Signal and Parking Lamps.............5-49
Halogen Bulbs............................................5-47
Headlamps and Dimming Instructions.................3-14
Headlamps On When Approaching the
Vehicle.......................................................3-14
HEADLIGHTS APPROACH TIME......................2-36
HEADLIGHTS OFF DELAY TIME......................2-36
High Speed Operation.....................................5-61
Highbeam On Light.........................................3-33
Highway Hypnosis...........................................4-22
Hill and Mountain Roads..................................4-22
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-4
How to Add Coolant to the Coolant
Surge Tank.................................................5-33
How to Add Fluid....................................5-22, 5-23
How to Check................................5-20, 5-23, 5-60
How to Check and Add Fluid............................5-24
6

How to Check Power Steering Fluid..................5-36
How to Detect a Tamper Condition....................2-15
How to Inspect the Engine Air Cleaner/Filter.......5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-12
Hydraulic Clutch.............................................5-24
Hydroplaning..................................................4-18
I
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.................................3-30
If You Are Caught in a Blizzard.........................4-26
If You Are Stuck in Sand, Mud, Ice or Snow.......4-28
IGNITION OFF COURTESY LAMP....................2-36
Ignition Positions.............................................2-16
Immobilizer....................................................2-12
Immobilizer Operation......................................2-13
Infants and Young Children, Restraints...............1-28
Inflation - Tire Pressure...................................5-58
INST FUEL....................................................3-38
Instrument Panel
Cluster.......................................................3-24
Overview..................................................... 3-2Instrument Panel Brightness.............................3-15
Instrument Panel Fuse Block............................5-88
Interior Lamps................................................3-15
J
Jump Starting.................................................5-42
K
Key Removal.................................................2-26
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Interior.......................................................3-15
Lap-Shoulder Belt...................................1-12, 1-21
LATCH System
Child Restraints...........................................1-38
Securing a Child Restraint Designed for the
LATCH System........................................1-40
Latches, Seatback............................................ 1-4
7

Leaving Your Vehicle......................................... 2-7
Leaving Your Vehicle With the Engine
Running.....................................................2-25
Light
Air Bag Readiness.......................................3-26
Anti-Lock Brake System Warning...................3-28
Brake System Warning.................................3-27
Change Engine Oil......................................3-33
Charging System.........................................3-27
Daytime Running Lamps Indicator..................3-34
Fog Lamp..................................................3-33
Highbeam On.............................................3-33
Malfunction Indicator....................................3-29
Oil Pressure...............................................3-32
Safety Belt Reminder...................................3-25
Security.....................................................3-33
Service Vehicle Soon...................................3-34
Lighted Visor Vanity Mirrors..............................2-12
Loading Your Vehicle.......................................4-30
Locks
Door........................................................... 2-6
Leaving Your Vehicle..................................... 2-7
Loss of Control...............................................4-13
Lumbar
Manual Controls............................................ 1-2M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month................................6-10
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-8
Maintenance Record....................................6-17
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-15
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-29
Manual Lumbar Controls.................................... 1-2
Manual Transmission.......................................2-17
Fluid..........................................................5-23
Operation...................................................2-21
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) – Customer Assistance....................... 7-4
8

Mirrors
Manual Rearview Mirror................................2-29
Outside Convex Mirror.................................2-30
Outside Power Mirrors..................................2-29
MyGMLink.com................................................ 7-3
N
Navigating the Menu.......................................2-33
New Vehicle Break-In......................................2-15
Normal Maintenance Replacement Parts............6-15
O
Odometer......................................................3-36
Off-Road Recovery..........................................4-11
Oil
Change Engine Oil Light...............................3-33
Engine.......................................................5-13
Pressure Light.............................................3-32
Older Children, Restraints................................1-26
One to Four Shift Light (Manual Transmission)....2-22
Online Owner Center........................................ 7-3
Operation......................................................3-19
Operation Tips................................................3-22
Options Menu.................................................3-49
O/SPEED (Overspeed)....................................3-38
O/Speed P2 (Overspeed Presets)......................3-38
Other Warning Devices...................................... 3-4Outlet Adjustment............................................3-22
Outside
Convex Mirror.............................................2-30
Power Mirrors.............................................2-29
Overseas – Customer Assistance........................ 7-4
Owner Checks and Services.............................. 6-9
Owner’s Information........................................7-11
P
Park (P)
Shifting Into................................................2-24
Shifting Out of............................................2-26
Parking
Brake........................................................2-23
Over Things That Burn.................................2-27
Your Vehicle/Key Removal............................2-26
Passing.........................................................4-12
Plan Ahead When Possible................................ 7-7
Playing a CD.................................................3-45
Playing the Radio...........................................3-43
Power
Accessory Outlets........................................3-17
Seat............................................................ 1-2
Steering Fluid.............................................5-36
Windows....................................................2-11
Power Steering................................................ 4-9
Pretensioners, Safety Belt................................1-25
9

W
Warning Lights, Gages and Indicators................3-23
Warnings
Hazard Warning Flashers............................... 3-4
Other Warning Devices.................................. 3-4
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-82
What Kind of Engine Oil to Use........................5-14
What to Do with Used Oil................................5-17
What to Use..................................5-26, 5-36, 5-37
Wheels
Alignment and Tire Balance..........................5-67
Replacement...............................................5-68
When to Add Engine Oil..................................5-14
When to Change Engine Oil
(GM Oil Life System)...................................5-16
When to Check......................................5-23, 5-60
When to Check and Change............................5-19When to Check and What to Use.....................5-24
When to Check Power Steering Fluid................5-36
When to Inspect the Engine Air Cleaner/Filter.....5-18
Where to Put the Restraint...............................1-35
Why Safety Belts Work..................................... 1-7
Windows.......................................................2-10
Power........................................................2-11
Windshield Washer........................................... 3-8
Fluid..........................................................5-37
Windshield Wiper
Blade Replacement......................................5-50
Windshield Wipers............................................ 3-7
Winter Driving................................................4-24
Winter Tires...................................................5-52
Y
Your Vehicle and the Environment....................... 6-2
14