2004 PONTIAC GTO service indicator

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Safety Belts
.............................................. 1-6
Child Restraints
.......................................1-26
Air Bag Systems
......................................1-46
Restraint System Check
............................1-52
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-6
Windows
.................................................2-10
Theft-Deterrent Systems
............................2-12
Starting and Operating Your Vehicle
...........2-15
Mirrors
....................................................2-29
Storage Areas
.........................................2-30
Vehicle Personalization
.............................2-32
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-19
Warning Lights, Gages, and Indicators
........3-23
Trip Computer
.........................................3-36
Audio System(s)
.......................................3-42Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-29
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Bulb Replacement
....................................5-47
Windshield Wiper Blade Replacement
.........5-50
Tires
......................................................5-51
Appearance Care
.....................................5-78
Vehicle Identification
.................................5-86
Electrical System
......................................5-87
Capacities and Specifications
.....................5-92
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2004 Pontiac GTO Owner ManualM

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-4
Horn.............................................................3-4
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-5
Exterior Lamps.............................................3-12
Interior Lamps..............................................3-15
Accessory Power Outlets...............................3-17
Ashtrays and Cigarette Lighter........................3-18
Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-22
Warning Lights, Gages, and Indicators............3-23
Instrument Panel Cluster................................3-24
Speedometer...............................................3-25
Tachometer.................................................3-25
Safety Belt Reminder Light.............................3-25
Air Bag Readiness Light................................3-26
Charging System Light..................................3-27
Brake System Warning Light..........................3-27Anti-Lock Brake System Warning Light.............3-28
Engine Coolant Temperature Gage..................3-28
Malfunction Indicator Lamp.............................3-29
Oil Pressure Light.........................................3-32
Change Engine Oil Light................................3-33
Security Light...............................................3-33
Fog Lamp Light............................................3-33
Highbeam On Light.......................................3-33
Daytime Running Lamps Indicator Light...........3-34
Service Vehicle Soon Light............................3-34
Fuel Gage...................................................3-35
Trip Computer................................................3-36
Audio System(s).............................................3-42
Setting the Time...........................................3-42
Radio with Six-Disc CD.................................3-43
Theft-Deterrent Feature..................................3-52
Audio Steering Wheel Controls.......................3-53
Radio Reception...........................................3-54
Care of Your CDs.........................................3-54
Care of Your CD Player................................3-54
Backglass Antenna.......................................3-55
Section 3 Instrument Panel
3-1

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As you will
see in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they’re working. If you are
familiar with this section, you should not be alarmed
when this happens.
Gages can indicate when there may be or is a problem
with one of your vehicle’s functions. Often gages
and warning lights work together to let you know when
there’s a problem with your vehicle.When one of the warning lights comes on and stays on
when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Please follow this
manual’s advice. Waiting to do repairs can be
costly – and even dangerous. So please get to know
your warning lights and gages. They’re a big help.
Your vehicle also has a trip computer that works along
with the warning lights and gages. The trip computer
display provides visual information. SeeTrip Computer
on page 3-36. The warning message are displayed
through the trip computer or as an illuminated symbol or
sometimes both ways.
If a Service Error Contact Dealer message appears on
the trip computer display while driving, a fault in the
instrument panel is indicated. Contact your dealer
as soon as possible. This message will remain until the
MODE button on the trip computer is pressed.
3-23

Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.Notice:If you keep driving your vehicle with this
light on, after a while, your emission controls
may not work as well, your fuel economy may not
be as good and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake or fuel system of your
vehicle or replacement tires that do not match
your vehicle’s original tires can affect your vehicle’s
emission controls and may cause this light to
come on. Modications to these systems could lead
to costly repairs not covered by your warranty.
This may also result in a failure to pass a required
Emission Inspection/Maintenance test.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is
not running. If the light does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
•Light Flashing— A misfire condition has been
detected. A misfire increases vehicle emissions
and may damage the emission control system on
your vehicle. Diagnosis and service may be
required.
•Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
3-29

Daytime Running Lamps
Indicator Light
This light will illuminate
when the Daytime Running
Lamps (DRL) are
activated. SeeExterior
Lamps on page 3-12.
Service Vehicle Soon Light
The Service Vehicle Soon
message along with this
symbol will come on and a
chime will sound if it
detects a problem on the
vehicle.
Such problems could be the Daytime Running
Lamps (DRL) or an automatic headlamp system
malfunction.
If this happens, see your dealer as soon as possible.
3-34

Fuel Gage
Your fuel gage tells you
about how much fuel you
have left, when the
ignition is on.
When the indicator nears empty, the light will come on
and you will hear a chime. You still have a little fuel
left, but you should get more soon.Here are four things that some owners ask about. None
of these show a problem with your fuel gage:•At the service station, the gas pump shuts off
before the gage reads full.
•It takes a little more or less fuel to fill up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to
fill the tank.
•The indicator moves a little when you turn a corner
or speed up.
•The gage goes back to empty when you turn off the
ignition.
3-35

Trip A/B
When the Time to Arrival/Distance to Arrival/Fuel
Remaining set of windows are turned on, using vehicle
personalization, and are showing on the display,
hold the MODE button down for two seconds. Now,
instead of the Time to Arrival set of displays, the
trip computer shows Trip B details.
Press the MODE button to view your displays. You now
have two different sets of trip displays counting, your
original set of trip displays (labeled A while B is turned
on) and a new set of trip displays, labelled B. This is
useful on a long trip, as Trip B can be reset at the
beginning of the journey and then locked away
(by pressing the MODE button for two seconds when
Trip B is shown). Time to Arrival/Distance to
Arrival/Remaining Fuel will again be shown on the
display, but Trip B is still counting away in the
background and the original trip display can be used for
short distances during the journey. Trip B can be
viewed at any time by pressing the MODE button for
two seconds when Distance to Arrival is shown.
Trip A/B can also be enabled/disabled in vehicle
personalization, SeeVehicle Personalization on
page 2-32. If the Trip A and B function is selected,
the Average Speed and Average Fuel displays
indicate Trip A.
Trip Computer Notes:
•If the wrong buttons are accidentally pressed,
causing the window to show a display other
than normal, turn the ignition off then on again
when the vehicle is standing still.
•Several warning lights are linked to the trip
computer displays. SeeWarning Lights, Gages, and
Indicators on page 3-23.
•When the overspeed warning symbol is first shown,
the overspeed trip computer display is automatically
shown for 10 seconds. This is to show what your
pre-selected speed is and allow you to adjust
it if required. After 10 seconds, the trip computer
returns to its previous display.
•Some displays change the units of measurement
over time. For example, the Time to Arrival shows
hours only above 99 hours and 59 minutes,
and hours and minutes below. Time to Arrival also
shows 10 minute units above 2 hours, 5 minute
units below 2 hours and 1 minute units below
10 minutes.
•If the X symbol or a Service Error message is
shown in the display, it indicates a fault in the
trip computer and you should see your vehicle
dealer.
3-40

California Fuel
If your vehicle is certified to meet California Emission
Standards (see the underhood emission control label), it
is designed to operate on fuels that meet California
specifications. If this fuel is not available in states
adopting California emissions standards, your vehicle
will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp may
turn on (seeMalfunction Indicator Lamp on page 3-29)
and your vehicle may fail a smog-check test. If this
occurs, return to your authorized GM dealer for
diagnosis. If it is determined that the condition is caused
by the type of fuel used, repairs may not be covered
by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. You should not have to add anything to your
fuel. However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations.General Motors recommends that you buy gasolines
that are advertised to help keep fuel injectors and intake
valves clean. If your vehicle experiences problems
due to dirty injectors or valves, try a different brand of
gasoline.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specifications described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you buy
gasoline whether the fuel contains MMT. General Motors
does not recommend the use of such gasolines.
Fuels containing MMT can reduce the life of spark plugs
and the performance of the emission control system
may be affected. The malfunction indicator lamp
may turn on. If this occurs, return to your authorized GM
dealer for service.
5-6