2008 CHRYSLER 300 SRT fuel pressure

Defroster
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See your
authorized dealer for service if your defroster is inoper-
able.
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 objects
lodged in the tread. Inspect the tread and sidewall for
cuts and cracks. Check the wheel nuts for tightness.
Check the tires (including spare) for proper 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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 77
2

engine running, your vehicle will usually be drivable.
However, see your authorized dealer for service as soon
as possible.
If the light is flashing when the engine is running,
immediate service is required. In this case, you may
experience reduced performance, an elevated/rough idle
or engine stall, and your vehicle may require towing.
Also, have the system checked by an authorized dealer if
the light does not come on during starting.
22. Tire Pressure Monitoring Telltale Light — If
Equipped
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on thevehicle 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. Accord-
ingly, 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 signifi-
cantly 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 to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
206 UNDERSTANDING YOUR INSTRUMENT PANEL

23. Charging System Light
This light shows the status of the electrical charg-
ing system. The light should turn on when the
ignition switch is first turned ON and remain on briefly
as a bulb check. If the light stays on, or turns on while
driving, turn off some of the vehicle’s non-essential
electrical devices (i.e., radio) or slightly increase engine
speed (if at idle). If the light remains on, it means that the
charging system is experiencing a problem. See your
local authorized dealer to obtain service immediately.
24. Malfunction Indicator Light (MIL)
This light is part of an onboard diagnostic system
called OBD. The OBD system monitors engine
and automatic transmission control systems. The
MIL will turn on when the key is in the ON position
before engine start. If the MIL does not come on 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 MIL after
engine start. The vehicle should be serviced if the MIL
stays on through several of your typical driving cycles. In
most situations, the vehicle will drive normally and will
not require towing.
The MIL flashes to alert you 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. (See page 387 for more
information.)
25. 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
single chime will sound when this light turns on.
208 UNDERSTANDING YOUR INSTRUMENT PANEL

•Right Front Low Pressure (with a single chime). Refer
to information on “Tire Pressure” and “Tire Pressure
Monitor” under “Starting And Operating.”
•Right Rear Low Pressure (with a single chime). Refer
to information on “Tire Pressure” and “Tire Pressure
Monitor” under “Starting And Operating.”
•Check TPM System (with a single chime). Refer to
information on “Tire Pressure” and “Tire Pressure
Monitor” under “Starting And Operating.”
•Check Gascap (refer to “Adding Fuel” in Section 5)
•Service Park Assist System (with a single chime)
•Insert Key/Turn To Run (refer to “Remote Starting
System” in Section 2)
•Upshift
•Stereo (if equipped with Driver-Selectable Surround
Sound [DSS])
•Video Surround (if equipped with Driver-Selectable
Surround Sound [DSS])
•Audio Surround (if equipped with Driver-Selectable
Surround Sound [DSS])
•0-60 mph (0-100 km/h) (if equipped with Performance
Pages)
•Braking Distance (if equipped with Performance
Pages)
•1/8 Mile (if equipped with Performance Pages)
•1/4 Mile (if equipped with Performance Pages)
•Instantaneous G-Force (if equipped with Performance
Pages)
•Peak G-Force (if equipped with Performance Pages)
•Digital Speedometer (if equipped with Performance
Pages)
214 UNDERSTANDING YOUR INSTRUMENT PANEL

▫LifeOfTire .........................341
▫Replacement Tires.....................342
▫Alignment And Balance.................343

Tire Chains...........................343

Snow Tires...........................344

Tire Rotation Recommendations............345
▫Tire Rotation — Standard Tires............345
▫Tire Rotation — All Season Tires..........346

Tire Pressure Monitor System (TPMS) —
If Equipped...........................347
▫Base System — If Equipped..............349
▫Premium System — If Equipped..........352
▫General Information...................357
Fuel Requirements......................357
▫6.1L Engine.........................357
▫Reformulated Gasoline.................358
▫Gasoline/Oxygenate Blends..............358
▫MMT In Gasoline.....................359
▫Materials Added To Fuel................359
▫Fuel System Cautions..................359
▫Carbon Monoxide Warnings..............360

Adding Fuel..........................361
▫Fuel Filler Cap (Gas Cap)...............361
▫Loose Fuel Filler Cap Message............363

Vehicle Loading........................364
▫Vehicle Certification Label...............364
STARTING AND OPERATING 295
5

2. 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 and results in higher fuel consump-
tion.
3. 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 either on
the face of the driver’s door or on the driver’s side
B-pillar.
Some vehicles may have supplemental tire pressure
information for vehicle loads that are less than themaximum loaded vehicle condition. These pressure con-
ditions will be found in the “Supplemental Tire Pressure
Information” section of this manual.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge to
Tire Placard Location
STARTING AND OPERATING 337
5

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
gauge, even if under-inflation has not reached the
level to trigger illumination of the Tire Pressure Moni-
toring Telltale Light.
•Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Base 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 the receiver module.
NOTE:It is particularly important for you to check the
tire pressure in all of the tires on your vehicle monthly
and to maintain the proper pressure.
The TPMS consists of the following components:
•Receiver Module
•Four Tire Pressure Monitoring Sensors
•Tire Pressure Monitoring Telltale Light
STARTING AND OPERATING 349
5

General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired op-
eration.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
FUEL REQUIREMENTS
6.1L Engine
The 6.1L Engine is designed to meet all
emissions regulations and provide excel-
lent fuel economy and performance when
using high-quality premium unleaded
gasoline with an octane rating of 91 or
higher.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required. Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
Over 40 auto manufacturers worldwide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) which define fuel properties
STARTING AND OPERATING 357
5