2004 DODGE GRAND CARAVAN service indicator

WARNING!A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, see Section 7 of this manual. Follow
the warnings under the Cooling System Pressure
Cap paragraph.
15. Washer Fluid Light
This light turns on when the washer fluid level
falls below approximately 1/4 filled. The light will
remain on until fluid is added.
16. Transmission Range Indicator
This vacuum fluorescent display indicator shows the
automatic transaxle gear selection. 17. Oil Pressure Warning Light
This light shows low engine oil pressure. The light
should turn on momentarily when the engine is
started. If the light turns on while driving, stop the
vehicle and shut off the engine as soon as possible. A
chime will sound for 4 minutes when this light turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
18. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD that monitors engine and automatic
transmission control systems. The light will illu-
minate when the key is in the ON position before engine
start. If the bulb does not come when turning the key
from OFF to ON, have the condition checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after UNDERSTANDING YOUR INSTRUMENT PANEL 155
4

engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
The Malfunction Indicator Light flashes to alert to serious
conditions that could lead to immediate loss of power or
severe catalytic converter damage. The vehicle should be
serviced as soon as possible if this occurs.
19. Trac Off Indicator Ð If Equipped
This vacuum fluorescent display indicator should illumi-
nate for approximately four seconds as a bulb check
when the ignition switch is first turned ON.
The ªTRAC OFFº Indicator will flash if the traction
control is in use.
The ªTRAC OFFº Indicator will illuminate if:
² The Traction Control switch has been used to turn
the system OFF. ² There is a Traction Control System malfunction
² The system has been deactivated to prevent damage
to the brake system due to overheated brake tem-
peratures.
NOTE: Extended heavy use of Traction Control may
cause the system to deactivate and turn on the TRAC and
the OFF indicators located in the instrument cluster.
This is to prevent overheating of the brake system and is
a normal condition. The system will remain disabled for
about 4 minutes until the brakes have cooled. The system
will automatically reactivate and turn off the TRAC and
the OFF indicators.
If your vehicle becomes stuck in mud, ice, or snow, turn
the Traction Control System OFF before attempting to
ªrockº the vehicle free.156 UNDERSTANDING YOUR INSTRUMENT PANEL

20. Odometer/Trip Odometer
The odometer shows the total distance the vehicle has
been driven.
U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so that the correct mileage can
be determined.
The trip odometer shows individual trip mileage. To
switch from odometer to trip odometer, press the Trip
Odometer button.
21. Cruise Indicator
This vacuum fluorescent display indicator shows that the
Speed Control System is ON. 22. Trip Odometer Button
Press this button to change the display from odometer to
trip odometer. The word TRIP will appear when in the
trip odometer mode.
Push in and hold the button for two seconds to reset the
trip odometer to 0 miles or kilometers. The odometer
must be in trip mode to reset.
23. Tire Pressure Monitor Warning Light Ð If
Equipped
This light will turn on when there is a Low tire
pressure condition. The light will also turn on
if a problem exist with any tire sensor. The light
will remain on until the tire pressure is prop-
erly set or the problem with the sensor is corrected.
This light will turn on momentarily as a bulb check when
the engine is started. UNDERSTANDING YOUR INSTRUMENT PANEL 157
4

N Tire Loading And Tire Pressure ...........247
m TiresÐGeneral Information ................251
N Tire Pressure .........................251
N Tire Inflation Pressures .................252
N Radial-Ply Tires ......................255
N Compact Spare Tire Ð If Equipped .........255
N Tire Spinning ........................256
N Tread Wear Indicators ..................256
N Replacement Tires .....................257
N Alignment And Balance .................258
m All Wheel Drive (AWD) Ð If Equipped .......259
m Tire Pressure Monitor System Ð If Equipped . . . 259
N 1,2,3, Or 4 Tire(s) Low Pressure ...........260 N 1,2,3, Or 4 Tire(s) High Pressure ...........260
N Service Tire Pressure System/See Owner's
Manual ............................260
N Tire Pressure Unavailable ................260
N Tire Pressure Now Available .............261
N Spare Tire In Use? Yes/No ...............261
N All 5 Tires With Car? Yes/No .............261
N General Information ...................263
m Tire Chains ...........................263
m Snow Tires ...........................264
m Tire Rotation Recommendations ............265
m Fuel Requirements ......................266
N Reformulated Gasoline .................266224 STARTING AND OPERATING

These indicators are molded into the bottom of the tread
grooves and will appear as bands when the tread depth
becomes 1/16 inch (2 mm). When the indicators appear
in 2 or more adjacent grooves, the tire should be replaced.
Many states have laws requiring tire replacement at this
point. Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (see the paragraph on tread
wear indicators). Refer to the Tire and Loading Informa-
tion placard for the size designation of your tire. The
service description and load identification will be found
on the original equipment tire. Failure to use equivalent
replacement tires may adversely affect the safety, han-
dling, and ride of your vehicle. We recommend that you
contact your original equipment or an authorized tire
dealer with any questions you may have on tire specifi-
cations or capability. STARTING AND OPERATING 257
5

It is even more important to look for gasolines without
MMT in Canada, because MMT can be used at levels
higher than those allowed in the United States.
MMT is prohibited in Federal and California reformu-
lated gasolines.
Sulfur In Gasoline
Your vehicle may have been designed to meet California
low emission standards when using cleaner burning
California reformulated gasoline with low sulfur. This
vehicle may be sold nationwide. Your vehicle will oper-
ate satisfactorily on fuels meeting Federal specification,
but emission control system performance may be ad-
versely affected.
Gasoline sold outside of California is permitted to have
higher sulfur levels which may affect the performance of
the vehicle's catalytic converter. This may cause the
Malfunction Indicator Light to illuminate. The manufac-
turer recommends that you try a different brand of unleaded gasoline having lower sulfur to determine if the
problem is fuel related prior to returning your vehicle to
an authorized dealer for service.
CAUTION! If the Malfunction Indicator light is flash-
ing, immediate service is required. Refer to
the paragraph on the Onboard Diagnostics
System in section 7 of this manual.
Materials Added to Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives are not needed under
normal conditions and would result in additional cost.
Therefore you should not have to add anything to the
fuel.268 STARTING AND OPERATING

ONBOARD DIAGNOSTIC SYSTEM Ð OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the ªMalfunction Indicator Light.º It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible. CAUTION!Prolonged driving with the ªMalfunction Indicator
Lightº on could cause further damage to the emis-
sion control system. It could also affect fuel economy
and driveability. The vehicle must be serviced before
any emissions tests can be performed.
If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur. Im-
mediate service is required.300 MAINTAINING YOUR VEHICLE

EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle's emissions control system.
Failure to pass could prevent vehicle registration.
For states which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Lamp)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system may not be ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test. Your vehicle has a simple ignition key actuated test
which you can use prior to going to the test station. To
check if your vehicle's OBD system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn off the MAINTAINING YOUR VEHICLE 301
7