2007 CHRYSLER CROSSFIRE wheel size

Supplemental Restraint System (SRS) - AirbagThis vehicle has airbags for the driver and passenger as a
supplement to the seat belt restraint systems. The driver's
airbag is mounted in the steering wheel. The passenger
frontal airbag is mounted in the instrument panel, under
a cover marked SRS/AIRBAG.
These airbags inflate in higher speed frontal impacts.
They work with the instrument panel inflatable knee
blockers and the seat belts to provide improved protec-
tion for the driver and passenger.
The vehicle is also equipped with side airbags, located in
the driver and passenger doors. Side airbags also work
with seat belts to improve occupant protection.
NOTE:The front driver airbag is certified to the Federal
regulations that allow less forceful deployment. The front
driver airbag has 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. Also,
the front passenger airbag is certified to the Federal
regulations that define Occupant Classification (Refer to
ªOccupant Classification Systemº in this section). Their
covers are also labeled SRS/AIRBAG.
30 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Ignoring the AIRBAG light in your instrument 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.
WARNING!
Do not put anything on or around the airbag covers
or attempt to manually open them. You may damage
the airbags and you could be injured because the
airbags are not there to protect you. These protective
covers are designed to open only when the airbags
are inflated.
²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, 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 occu-
pant 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 bags inflate to their full size.
The bags fully inflate in about 50±70 milliseconds. This
is about half of the time it takes to blink your eyes. The
bags then quickly deflate while helping to restrain the
driver and front passenger. The driver 's front airbag
gas is vented through vent holes in the sides of the
airbag. The passenger 's front airbag gas is vented
through vent holes in the sides of the airbag. In this
way the airbags do not interfere with your control of
the vehicle.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 35
2

TIRE PRESSURE MONITOR SYSTEM (if equipped)
Each tire should be checked monthly when cold and
inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire infla-
tion pressure label. (If your vehicle has tires of a different
size than the size indicated on the 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 on ormore of your tires is significantly underÐinflated. Ac-
cordingly, when the low tire pressure telltale illuminates,
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 over-
heat and can lead to tire failure. Under-inflation also
reduced 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 to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
The Tire Pressure Monitor (TPM) system uses wireless
technology to monitor tire pressure levels. Sensors
mounted to each wheel as part of the valve stem transmit
tire pressure readings to a receiver located inside the
vehicle.
NOTE:The TPM system can inform you about a low
tire pressure condition, but it does not replace normal tire
maintenance. The TPM system is not intended to provide
you with notification of rapid tire pressure loss.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 93
3

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.
Aftermarket wheels can cause sensor damage. Do not
use aftermarket tire sealant or balance beads, as
damage to the sensors may result.
NOTE:The standard TIREFIT system (refer to What To
Do In Emergencies for more information) is specifically
designed to operate in conjunction with the TPM system,
and will not damage the sensors.
If your tire pressure is low, you should correct your tire
inflation pressure as soon as possible and inspect all of
your tires. Low tire pressure will cause the tire pressure
light to illuminate. They will remain on for the rest of the
driving cycle, or until the tire pressure is corrected.
In addition to monitoring tire pressures, the TPM system
also monitors faults within the system. If the TPM light
and alarm continue after the tire pressure has been
corrected, see your authorized dealer.
This device complies with part 15 of FCC rules and with
RSS-210 of Industry Canada. Operation is subject to the
following conditions:
1. This device may not cause harmful interference.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 95
3

In the case of an emergency brake maneuver, keep
continuous full pressure on the brake pedal. In this
manner only can the ABS be most effective.
On slippery road surfaces, the ABS will respond even
with light brake pedal pressure because of the in-
creased likelihood of locking wheels. The pulsating
brake pedal can be an indication of hazardous road
conditions and functions as a reminder to take extra
care while driving.
WARNING!
Significant over- or under-inflation of tires, or mix-
ing sizes of front or rear tires or wheels on the vehicle
can reduce braking effectiveness. Maintain proper
tire pressure and always use the tires and wheels
specified in this manual for your vehicle.The anti-lock brake system conducts a low-speed self-test
at about 12 mph (20 km/h). If you have your foot lightly
on the brake while this test is occurring, you may feel
slight pedal movement. The movement can be more
apparent on ice and snow. The anti-lock brake system
pump motor makes a low humming noise during opera-
tion, which is normal.
WARNING!
Pumping of the brake pedal will diminish the effec-
tiveness of the anti-lock brakes and may lead to an
accident. Pumping makes the stopping distance
longer. Just press firmly on your brake pedal when
you need to slow down or stop.
NOTE:During severe braking conditions, a pulsing
sensation may occur and a clicking noise will be heard.
This is normal, indicating that the anti-lock brake system
is functioning.
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Recommended Tire Inflation Pressures
Sport Performance (Y speed rating) tires and All-Season
Performance (W speed rating) tires
Front 225/40 ZR18............... 32psi(221 kPa)
Rear 255/35 ZR19................ 33psi(227 kPa)
Sport Performance (Y speed rating) tires and All-Season
Performance (W speed rating) tires above 100 mph (161
km/h)
Front 225/40 ZR18............... 36psi(248 kPa)
Rear 255/35 ZR19................ 36psi(248 kPa)
Winter tires
Front 225/40 VR18 M+S........... 33psi(227 kPa)
Rear 225/40 VR18 M+S............ 36psi(248 kPa)WARNING!
²When obtaining replacement tires, assure that the
tires are specified for replacement on the Crossfire.
Tires with the same size, speed, or load ratings that
are specified for replacement on other vehicles may
not properly fit on the original equipment wheels of
your vehicle.
²Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspension
dimensions and performance characteristics, result-
ing in changes to steering, handling, and braking of
your vehicle. This can cause unpredictable handling
and stress to steering and suspension components.
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.
²Never 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.
²Failure to equip your vehicle with tires having ad-
equate speed capability can result in sudden tire
failure and loss of vehicle control.
180 STARTING AND OPERATING

CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings. Check with your authorized dealer before re-
placing tires with a different size.
Alignment And Balance
The suspension components of your vehicle should be
inspected and aligned when needed to obtain full tire
tread mileage
Poor suspension alignment may result in:
²Fast tire wear.
²Uneven tire wear, such as feathering and one-sided
wear.
²Vehicle 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.Improper alignment will not cause vehicle vibration.
Vibration may be a result of tire and wheel out-of-
balance. Proper balancing will reduce vibration and
avoid tire cupping and spotty wear.
TIRE PRESSURE MONITOR SYSTEM (If
Equipped)
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to a computer which monitors for low pressure.
If low pressure is measured, the TPMS Telltale Lamp will
illuminate.
NOTE:It is particularly important, for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.
The TPMS informs you of a low tire pressure condition.
If this occurs, correct your tire inflation pressure as soon
as possible, and inspect all of your tires. Be sure to use a
high quality gauge when adjusting pressure. The TPMS
is designed to periodically monitor your tire pressure but
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cannot be expected to function as a tire pressure gauge.
There can be a delay between the instant you adjust the
air pressure in a tire and when the system updates the
display. The TPMS is not intended to provide you with
notification of rapid air loss.
The TPMS will cause the Telltale lamp in the instrument
cluster to illuminate whenever the pressure in one tire
falls 25% below the recommended pressure shown on the
tire label.NOTE:A TPMS does not replace normal tire mainte-
nance.
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 operation or sensor damage
may result when using replacement equipment that
is not of the same size, type, and/or style. Aftermar-
ket wheels can cause sensor damage. Do not use
aftermarket tire sealant or balance beads as damage
to the sensors may result. The standard TIREFIT
system (see Tirefit Tire Repair and Jacking Instruc-
tions in the What To Do In Emergencies section) is
specifically designed to operate in conjunction with
the TPMS, and will not damage the sensors.
182 STARTING AND OPERATING