2005 DODGE GRAND CARAVAN wheel size

WARNING!Using a seat belt extender when not needed can
increase the risk of injury in a collision. Only use
when the lap belt is not long enough when it is worn
low and snug, and in the recommended seating
positions. Remove and store the extender when not
needed.
Driver And Front Passenger Supplemental
Restraint Systems (SRS) — Airbags
This vehicle has airbags for both the driver and front
passenger as a supplement to the seat belt restraint
systems. The driver ’ s front airbag is mounted in the
center of the steering wheel. The passenger ’ s front airbag
is mounted in the instrument panel, above the glove
compartment. The words SRS AIRBAG are embossed on
the airbag covers. NOTE: The front airbags are certified to the Federal
regulations that allow less forceful deployment in low
speed collisions.
The front airbags have a multi stage inflator design. This
may allow the airbag to have different rates of inflation
that are based on collision severity and occupant size. Front Airbag ComponentsTHINGS TO KNOW BEFORE STARTING YOUR VEHICLE 53
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• Knee Impact Bolster
• Driver Inflatable Knee Blocker
• Front Passenger Seat Occupant Classification System
(OCS) — If Equipped
Occupant Classification Module
Passenger Airbag Disabled (PAD) Indicator Light
Interconnecting Wiring
Bladder Assembly
Belt Tension Sensor
How The Airbag System Works
• The Occupant Restraint Controller (ORC) determines
if a frontal collision is severe enough to require the
airbags to inflate. Based on the level of collision
severity, the front control module determines the proper rate of inflation. The front airbag inflators are
designed to provide different rates of airbag inflation.
• The ORC may modify the rate of inflation based on the
occupant size provided by the Occupant Classification
Module.
• The ORC will not detect side, roll over, or rear impacts.
• The ORC monitors the readiness of the electronic parts
of the system whenever the ignition switch is in the
START or RUN positions. These include all of the
items listed above except the steering wheel and
column, instrument panel and passenger knee bol-
sters. If the key is in the OFF position, in the ACC
position, or not in the ignition, the airbags are not on
and will not inflate.
• Also, the ORC turns on the AIRBAG warn-
ing light and PAD indicator light in the
center of the instrument panel for 6 to 8
seconds for a self-check when the ignition is58 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

first turned on. After the self-check, the AIRBAG
warning light will turn off. The PAD indicator light
will function normally (Refer to “ Passenger Airbag
Disable (PAD) Indicator Light ” in this section). If the
ORC detects a malfunction in any part of the system, it
turns on the AIRBAG warning light either momen-
tarily or continuously. A single chime will sound if the
light comes on again after initial start up.
WARNING!Ignoring the AIRBAG warning light in your instru-
ment panel could mean you won ’ t have the airbags
to protect you in a collision. If the light does not
come on, stays on after you start the vehicle, or if it
comes on as you drive, have the airbag system
checked right away. • The Driver and Passenger Airbag/Inflator Units are
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC and
impact sensors detects a collision requiring the air-
bags, it signals the inflator units. A large quantity of
nontoxic gas is generated to inflate the front airbags.
Different airbag inflation rates may be possible based
on collision severity and occupant size. The steering
wheel hub trim cover and the upper right side of the
instrument panel separate and fold out of the way as
the airbags inflate to their full size. The airbags fully
inflate in about 50 – 70 milliseconds. This is about half
of the time it takes to blink your eyes. The airbags then
quickly deflate while helping to restrain the driver and
front passenger.
The driver ’ s and passenger ’ s front airbag gas is vented
through the airbag material towards the instrument
panel. In this way the airbags do not interfere with
your control of the vehicle. THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59
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WARNING!• Anti-lock system (ABS) cannot prevent the natu-
ral laws of physics from acting on the vehicle, nor
can it increase braking or steering efficiency be-
yond that afforded by the condition of the vehicle
brakes and tires or the traction afforded.
• The ABS cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful driver
can prevent accidents.
• The capabilities of an ABS equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user ’ s safety
or the safety of others. All vehicle wheels and tires must be the same size and
type and tires must be properly inflated to produce
accurate signals for the computer.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason, the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE: Increased noise levels at the end of the steering
wheel travel are considered normal and does not indicate
that there is a problem with the power steering system. STARTING AND OPERATING 305
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WARNING!• Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspen-
sion dimensions and performance characteristics,
resulting in changes to steering, handling, and brak-
ing of your vehicle. This can cause unpredictable
handling and stress to steering and suspension com-
ponents. You could lose control and have an accident
resulting in serious injury or death. Use only the tire
and wheel sizes with load ratings approved for your
vehicle.
• Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have an accident.
• Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control. CAUTION!Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
Alignment And Balance
Poor suspension alignment may result in:
• Fast tire wear.
• Uneven tire wear, such as feathering and one-sided
wear.
• Vehicle pull to right or left.
Tires may also cause the vehicle to pull to the left or right.
Alignment will not correct this condition. See your dealer
for proper diagnosis.324 STARTING AND OPERATING

CHECK TPM SYSTEM
The Tire Pressure Monitor System (TPM) system requires
service.
See your authorized dealer for service.
CAUTION!The TPM system has been optimized for the original
equipment tires and wheels. TPM system pressures
have been established for the tire size equipped on
your vehicle. Undesirable operation or sensor dam-
age may result when using replacement equipment
that is not of the same size, type, and/or style.
After-market wheels can cause sensor damage. Do
not use tire sealant or balance beads if your vehicle
is equipped with TPM system as damage to the
sensors may result. NOTE:
• The TPM system can inform the driver of a low tire
pressure condition of 28 psi [1.9 bars] (193 kPa) or less,
or high a tire pressure condition of 48 psi [3.3 bars]
(330 kPa) or more.
• The TPM system is not intended to replace normal tire
care and maintenance, nor to provide warning of a tire
failure or condition.
• The TPM system should not be used as a tire pressure
gauge while adjusting your tire pressure.
CAUTION!After inspecting or adjusting the tire pressure al-
ways reinstall the valve stem cap. This will prevent
moisture and dirt entry into the valve stem, which
could damage the wheel rim sensor.326 STARTING AND OPERATING

CAUTION!For vehicles equipped with fold-in-floor seating, the
Winch Mechanism is designed specifically to stow a
COMPACT Spare Tire ONLY. Do not attempt to use
the Winch to stow the Full Size ’ Flat ’ Tire, or any
other Full Size Tire. Vehicle damage may result.
Jacking Instructions — Non Fold-in-Floor Seating
Preparations For Jacking
Park the vehicle on a firm level surface, avoid ice or
slippery areas, set the parking brake and place the gear
selector in PARK. Turn OFF the ignition. WARNING!Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Turn on the Hazard Warning Flasher.
• Block both the front and rear
of the wheel diagonally oppo-
site the jacking position. For
example, if changing the right
front tire, block the left rear
wheel.
• Passengers should not remain in the vehicle when the
vehicle is being jacked. WHAT TO DO IN EMERGENCIES 359
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