2007 DODGE NITRO fuel pressure

Defrosters
Check operation by selecting the defrost mode and place
the blower control on high speed. You should feel the air
directed against the windshield.
Safety Checks You Should Make Outside The
Vehicle
Tires
Examine tires for excessive tread wear or uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread. Inspect for tread cuts or sidewall
cracks. Check wheel nuts for tightness and tires (includ-
ing spare) for proper pressure.
Lights
Have someone observe the operation of all exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
coolant, oil or other fluid leaks. Also, if gasoline fumes
are detected, the cause should be located and corrected
immediately.
76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

24. Transmission Range Indicator
The electronic gear selector display is self-contained
within the instrument cluster. It displays the position of
the automatic transmission shift lever, and the relation of
each position to all other positions. For a good signal the
display will place a box around the selected transmission
range (PRND21). If the PRNDL displays only the char-
acters PRND21 (no boxes) have the system checked by an
authorized dealer.
25. 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
INSTRUMENT PANEL AND CONTROLS 171
4

•Right Front Low Pressure (with a single chime). Refer
to “Tire Pressure Monitoring System” in Section 5 of
this manual.
•Right Rear Low Pressure (with a single chime). Refer
to “Tire Pressure Monitoring System” in Section 5 of
this manual.
•Check TPM System (with a single chime). Refer to
“Tire Pressure Monitoring System” in Section 5 of this
manual.
•Check Gascap (refer to “Adding Fuel” in Section 5 of
this manual for more details)
Trip Functions
Press and release the MENU button until one of the
following Trip Functions displays in the EVIC:
•Average Fuel Economy
•Distance To Empty
•Elapsed Time
•Display Units of Measure in
Press the SCROLL button to cycle through all the Trip
Computer functions.
The Trip Functions mode displays the following informa-
tion:
•Average Fuel Economy
Shows the average fuel economy since the last reset.
When the fuel economy is reset, the display will read
“RESET” or show dashes for two seconds. Then, the
history information will be erased, and the averaging will
continue from the last fuel average reading before the
reset.
•Distance To Empty (DTE)
Shows the estimated distance that can be traveled with
the fuel remaining in the tank. This estimated distance is
determined by a weighted average of the instantaneous
182 INSTRUMENT PANEL AND CONTROLS

Tire Pressure Monitoring System (TPMS) —
If Equipped...........................287
▫Base System — If Equipped..............290
▫Premium System — If Equipped..........291
▫General Information...................295

Fuel Requirements......................296
▫3.7L Engine (If Equipped)...............296
▫4.0L Engine (If Equipped)...............296
▫Reformulated Gasoline.................297
▫Gasoline/Oxygenate Blends..............297
▫MMT In Gasoline.....................298
▫Materials Added To Fuel................298
▫Fuel System Cautions..................298▫Carbon Monoxide Warnings..............299

Adding Fuel..........................300
▫Fuel Filler Cap (Gas Cap)...............300
▫Loose Fuel Filler Cap Message............302

Vehicle Loading........................303
▫Certification Label.....................303

TrailerTowing .........................305
▫Common Towing Definitions.............306
▫Trailer Hitch Classification...............310
▫Trailer Towing Weights
(Maximum Trailer Weight Ratings).........310
▫Trailer And Tongue Weight..............314
▫Towing Requirements..................315
STARTING AND OPERATING 237
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.
Both under inflation and over inflation affect the stability
of the vehicle and can produce a feeling of sluggish
response or over responsiveness in the steering.
Unequal tire pressures can cause erratic and unpredict-
able steering response.
Unequal tire pressure from side to side may cause the
vehicle to drift left or right.Tire Inflation Pressures
The proper cold tire inflation pressure is listed on either
the face of the driver’s door, or the driver’s side “B” pillar.
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 279
5

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, even if under-inflation has not
reached the level to trigger illumination of the “Tire
Pressure Monitoring Telltale Light.”
•Seasonal temperature changes will affect tire pressure,
and the TPM system 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 your tires regularly and to maintain
the proper pressure.
The Tire Pressure Monitor System (TPMS) consists of the
following components:
•Receiver Module
•4 Tire Pressure Monitoring Sensors
•Tire Pressure Monitoring Telltale Light
The “Tire Pressure Monitoring Telltale Light” will
illuminate in the instrument cluster, and an au-
dible chime will be activated when one or more of
the four active road tire pressures are low. The audible
chime will sound once every ignition cycle for each
condition that it detects. Should this occur, you should
stop as soon as possible, check the inflation pressure of
each tire on your vehicle, and inflate each tire to the
pressure recommended by the vehicle manufacturer. The
290 STARTING AND OPERATING

Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
Tire Size
The tire size on the Label represents the actual tire size on
your vehicle. Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
then be determined separately to be sure that the load is
properly distributed over front and rear axle. Weighing
the vehicle may show that the GAWR of either the front
304 STARTING AND OPERATING

ABS (Anti-Lock Brake System)............169,265
Adding Fuel........................... 300
Adding Washer Fluid..................... 156
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 350
Air Conditioner Maintenance............... 351
Air Conditioning.....................228,232
Air Conditioning Controls................. 232
Air Conditioning, Operating Tips............ 232
Air Conditioning Refrigerant............... 352
Air Conditioning System.................. 232
AirFilter .............................. 350
Air Pressure, Tires....................... 279
Airbag............................. 47,170
Airbag Deployment....................... 59
Airbag Light.......................... 61,75
Airbag Maintenance....................... 61
Alarm, Panic............................ 23
Alarm (Security Alarm)................. 19,166
Alarm System (Security Alarm)............... 19Alignment and Balance................... 284
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 222
Antifreeze (Engine Coolant)................ 382
Anti-Lock Brake System (ABS)............128,265
Anti-Lock Warning Light.................. 169
Anti-Theft System..................... 19,166
Appearance Care........................ 366
Auto Down Power Windows................ 32
AutomaticDimmingMirror ................. 82
Automatic Door Locks..................... 30
Automatic Transaxle...................... 247
Automatic Transmission.............249,254,363
Fluid and Filter Changes................. 363
Fluid Level Check...................363,364
FluidType ........................363,384
Gear Ranges.......................... 249
Special Additives...................... 364
Torque Converter...................254,258
420 INDEX