2009 DODGE CHARGER wheel size

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.
•TheDriver and Front Passenger Airbag/Inflator
Units are located in the center of the steering wheel
and the passenger 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 colli-
sion severity. The steering wheel hub trim cover, and
the upper passenger 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 to 70
ms. This is about half of the time that 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.•The
Knee Impact Bolsters help protect the knees of
the driver and the front passenger and position every-
one for the best interaction with the front airbag.
•The Supplemental Side Impact SRS Side Curtain
Airbags are designed to activate only in certain side
collisions. When the ORC (with side impact option)
detects a collision requiring the side curtain airbag to
inflate, it signals the inflators on the crash side of the
vehicle. A quantity of nontoxic gas is generated to
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

To Activate
Push and release the ON/OFF button located
on the end of the Electronic Speed Control
lever. The indicator light in the instrument
cluster will illuminate to show that the speed
control system is on. To turn the system off, push and
release the ON/OFF button again. The system and the
indicator light will turn off.
WARNING!
Leaving the Electronic Speed Control system on
when not in use is dangerous. You could accidentally
set the system or cause it to go faster than you want.
You could lose control and have an accident. Always
leave the Electronic Speed Control system off when
you are not using it.
To Set At A Desired Speed
When the vehicle reaches the speed desired, push the
lever downward to SET DECEL and release. Remove
your foot from the accelerator pedal and the vehicle will
operate at the selected speed.
NOTE:
•Electronic Speed Control will only function in 3rd, 4th,
or 5th gear when in the Autostick mode (if
equipped).
•The Electronic Speed Control may not engage if a
different size tire is installed on one wheel, such as the
compact spare tire.
To Deactivate
The system will disable Electronic Speed Control without
erasing the memory if you:
•Softly tap the brake pedal,
•Depress the brake pedal, or
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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.
23. Anti-Lock Brake (ABS) Light — If Equipped This light monitors the Anti-Lock Brake System
(ABS). The light will turn on when the ignition
switch is turned to the ON position and may stay on for
as long as four seconds. If the ABS light remains on or turns on while driving,
then the Anti-Lock portion of the brake system is not
functioning and service is required. However, the con-
ventional brake system will continue to operate normally
if the BRAKE warning light is not on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefits of Anti-Lock
brakes. If the ABS light does not turn on when the
ignition switch is turned to the ON position, have the
light inspected by an authorized dealer.
24. Low Fuel Indicator Light
This light will turn on and a single chime will
sound when the fuel level drops to 1/8 tank.
182 UNDERSTANDING YOUR INSTRUMENT PANEL

vehicle automatically shifts into AWD mode. Automatic
AWD operation could be activated by outside tempera-
ture, wheel slip, or other predetermined conditions (there
may be a slight delay for AWD engagement after a wheel
slip condition occurs). AWD can also be manually se-
lected by moving the shift lever into the Autostickmode
(+/-) or activating the windshield wipers for an extended
period of time.
NOTE: If the “t CASE” or “SERVICE AWD SYSTEM”
warning message appears after engine start up, or during
driving, it means that the AWD system is not functioning
properly and that service is required. Refer to “Electronic
Vehicle Information Center” in Section 4 of this manual.CAUTION!
All wheels must have the same size and type tires.
Unequal tire sizes must not be used. Unequal tire
size may cause failure of the front differential and/or
the transfer case.
DRIVING ON SLIPPERY SURFACES
Acceleration
Rapid acceleration on snow covered, wet, or other slip-
pery surfaces may cause the rear wheels to pull errati-
cally to the right or left. This phenomenon occurs when
there is a difference in the surface traction under the rear
(driving) wheels.
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5

WARNING! (Continued)
•The ABS cannot prevent the natural laws of phys-
ics from acting on the vehicle, nor can it increase
braking or steering efficiency beyond that af-
forded 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 that 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.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that include ABS (Anti-Lock Brake
System), TCS (Traction Control System), BAS (Brake
Assist System), and ESP (Electronic Stability Program).
All four of these systems work together to enhance
vehicle stability and control in various driving condi-
tions.
ABS (Anti-Lock Brake System)
This system aids the driver in maintaining vehicle control
under adverse braking conditions by controlling hydrau-
lic brake pressure. This prevents wheel lock-up to help
avoid skidding on slippery surfaces during braking.
Refer to “Anti-Lock Brake System” in Section 5 of this
manual.
296 STARTING AND OPERATING

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 sus-
pension dimensions and performance characteris-
tics, resulting in changes to steering, handling, and
braking of your vehicle. This can cause unpredict-
able handling and stress to steering and suspen-
sion 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.
•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.(Continued)
WARNING! (Continued)
•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.
SELF-SEALING TIRES — IF EQUIPPED
A non-hardening viscous sealant applied to the inner
liner of each tire fills punctures up to 0.19 in (5 mm) to
minimize the loss of air pressure. This contributes to the
safety of the vehicle by significantly reducing the prob-
ability of a roadside stop due to a flat tire.
318 STARTING AND OPERATING

TIRE CHAINS
Use only compact chains or other traction aids that meet
SAE type “Class S” specifications. Chains must be the
proper size for the vehicle, as recommended by the chain
manufacturer. In addition, only install tire chains on
P215/65 R17 and P225/60 R18 size tires. The P245/45
R20 size tires do not provide adequate clearance for tire
chains.
NOTE:Do not use tire chains on a compact spare tire.
CAUTION!
To avoid damage to your vehicle or tires, observe the
following precautions:
(Continued)
CAUTION! (Continued)
•Because of restricted chain clearance between tires
and other suspension components, it is important
that only chains in good condition are used. Bro-
ken chains can cause serious damage. Stop the
vehicle immediately if noise occurs that could
indicate chain breakage. Remove the damaged
parts of the chain before further use.
•Install chains on the rear wheels as tightly as
possible and then retighten after driving about12
mile (0.8 km).
•Do not exceed 30 mph (48 km/h).
•Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.
•Use on rear wheels only.
•Do not drive for prolonged period on dry pave-
ment.(Continued)
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5

For example, your vehicle may have a recommended
cold (parked for more than three hours) placard pressure
of 30 psi (207 kPa). If the ambient temperature is 68°F
(20°C) and the measured tire pressure is 27 psi (186 kPa),
a temperature drop to 20°F (-7°C) will decrease the tire
pressure to approximately 23 psi (158 kPa). This tire
pressure is sufficiently low enough to turn ON the TPM
Telltale Light. Driving the vehicle may cause the tire
pressure to rise to approximately 27 psi (186 kPa), but the
TPM Telltale Light will still be ON. In this situation, the
TPM Telltale Light will turn OFF only after the tires are
inflated to the vehicle’s recommended cold placard pres-
sure value.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
operation or sensor damage may result when us-
ing replacement equipment that is not of the same
size, type, and/or style. Aftermarket wheels can
cause sensor damage. Do not use aftermarket tire
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 TPM sensor.
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