2012 DODGE CARAVAN fuel pressure

WARNING! (Continued)
•Always make sure that objects cannot fall into the
driver footwell while the vehicle is moving. Ob-
jects can become trapped under the brake pedal
and accelerator pedal causing a loss of vehicle
control.
•If required, mounting posts must be properly
installed, if not equipped from the factory.
Failure to properly follow floor mat installation or
mounting can cause interference with the brake
pedal and accelerator pedal operation causing loss
of control of the vehicle.
Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objectslodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks and bulges.
Check the wheel nuts for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Door Latches
Check for positive closing, latching, and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
engine coolant, oil, or other fluid leaks. Also, if gasoline
fumes are detected or if fuel, power steering fluid, or
brake fluid leaks are suspected, the cause should be
located and corrected immediately.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 103
ProCarManuals.com

vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility tomaintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more
290 UNDERSTANDING YOUR INSTRUMENT PANEL
ProCarManuals.com

tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system opera-
tion or sensor damage may result when using re-
placement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Do not use tire sealant from a can or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.9. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of
an onboard diagnostic system, called OBD, that
monitors engine and automatic transmission con-
trol systems. The light will illuminate when the key is in
the ON/RUN position, before engine start. If the bulb
does not come on when turning the key from OFF to
ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap,
poor fuel quality, etc., may illuminate the MIL after
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.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 291
ProCarManuals.com

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 an authorized dealer-
ship for service if your vehicle overheats. If you
decide to look under the hood yourself, see “Main-
taining Your Vehicle”. Follow the warnings under the
Cooling System Pressure Cap paragraph.
21. Low Fuel Light When the fuel level reaches approximately 2.0 gal
(7.8 L) this light will turn on, and remain on until
fuel is added.
22. Charging System Light This light shows the status of the electrical charg-
ing system. The light should come on when the
ignition switch is first turned to ON/RUN and remain on
briefly as a bulb check. If the light stays on or comes on while driving, turn off some of the vehicle’s non-essential
electrical devices or increase engine speed (if at idle). If
the charging system light remains on, it means that the
vehicle is experiencing a problem with the charging
system. Obtain SERVICE IMMEDIATELY. See an autho-
rized dealer.
If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies”.
23. Oil Pressure Warning Light
This light indicates 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 four minutes when this light turns
on.
Do not operate the vehicle until the cause is corrected.
This light does not indicate how much oil is in the engine.
The engine oil level must be checked under the hood.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 297
ProCarManuals.com

▫Full Size Spare – If Equipped ............ 466
▫ Limited-Use Spare – If Equipped ......... 466
▫ Tire Spinning ....................... 467
▫ Tread Wear Indicators ................. 468
▫ Life Of Tire ........................ 468
▫ Replacement Tires .................... 469
 Tire Chains .......................... 470
 Snow Tires .......................... 472
 Tire Rotation Recommendations ........... 472
 Tire Pressure Monitor System (TPMS) ....... 473
▫ Base System ........................ 476
▫ Premium System – If Equipped .......... 478
Fuel Requirements ..................... 482
▫ 3.6L Engine ........................ 482
▫ Reformulated Gasoline ................ 482
▫ Gasoline/Oxygenate Blends ............. 483
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 483
▫ MMT In Gasoline .................... 484
▫ Materials Added To Fuel ............... 484
▫ Fuel System Cautions ................. 485
▫ Carbon Monoxide Warnings ............ 486
 Flexible Fuel — If Equipped .............. 486
▫ E-85 General Information ............... 486
▫ Ethanol Fuel (E-85) ................... 488
▫ Fuel Requirements ................... 488
5
STARTING AND OPERATING 417
ProCarManuals.com

WARNING! (Continued)
•Unequal tire pressures from one side of the ve-
hicle to the other can cause the vehicle to drift to
the right or left.
•Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation, also increases
tire rolling resistance resulting in higher fuel
consumption.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side “B” Pillar or rear edge of the driver’s side
door.
The tire pressure should be checked and adjusted, and
the tires inspected for signs of wear or visible damage, at
least once a month. Use a good quality pocket-type gauge
to check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated, even when they are under-inflated.
CAUTION!
After inspecting or adjusting the tire pressure, al-
ways reinstall the valve stem cap. This will prevent
moisture and dirt from entering the valve stem,
which could damage the valve stem.
462 STARTING AND OPERATING
ProCarManuals.com

CAUTION!
•The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures have
been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor
damage may result when using replacement
equipment that is not of the same size, type, and/or
style. Aftermarket wheels can cause sensor dam-
age. Do not use aftermarket sealants or balance
beads if your vehicle is equipped with a TPMS, as
damage to the sensors may result.
•After inspecting or adjusting the tire pressure
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve
stem, which could damage the TPMS sensor.NOTE:
•The TPMS is not intended to replace normal tire care
and maintenance, or to provide warning of a tire
failure or condition.
•The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
•Driving on a significantly under-inflated tire causes
the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling and
stopping ability.
•The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver’s responsibility to maintain
correct tire pressure, using an accurate tire pressure
gage, even if under-inflation has not reached the level
to trigger illumination of the “Tire Pressure Monitor-
ing Telltale Light.”
5
STARTING AND OPERATING 475
ProCarManuals.com

Adding Engine Coolant (Antifreeze).......... 564
Adding Fuel ........................... 490
Adding Washer Fluid ..................... 561
Additives, Fuel ......................... 484
Adjustable Pedals ....................... 210
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 553
Air Conditioner Maintenance ............... 557
Air Conditioning ........................ 393
Air Conditioning Controls ................. 393
Air Conditioning Filter .................413,558
Air Conditioning Refrigerant ............... 557
Air Conditioning System .............393,400,557
Air Conditioning System, Zone Control ........ 393
Air Conditioning, Operating Tips ............ 413
Air Conditioning, Rear Zone .............398,408
Air Pressure, Tires ....................... 462
Airbag .............................. 70,79
Airbag Deployment ....................... 81
Airbag Light .................... 77,83,101,293Airbag Maintenance
....................... 82
Airbag, Side ........................ 74,76,79
Airbag, Window (Side Curtain) ...........74,76,79
Alarm (Security Alarm) .................... 17
Alarm Light ........................... 294
Alterations/Modifications, Vehicle ............. 7
Antenna, Satellite Radio ................... 343
Anti-Lock Warning Light .................. 289
Anti-Theft System ........................ 17
Antifreeze (Engine Coolant) ..............563,589
Disposal ........................... 565
Appearance Care ........................ 571
Ashtray ............................... 253
Assist, Hill Start ........................ 449
Assistance Towing ....................... 139
Auto Down Power Windows ................ 39
Auto Up Power Windows .................. 39
Automatic Dimming Mirror ................ 112
Automatic Door Locks ..................... 35
620 INDEX
ProCarManuals.com