oil pressure JEEP PATRIOT 2008 1.G Owners Manual

Periodic 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 tread and sidewall for cuts or
cracks. Check wheel nuts for tightness and tires (includ-
ing 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.
Fluid Leaks
Check the area under the vehicle after overnight parking
for fuel, engine coolant, oil or other fluid leaks. Also, if
gasoline fumes are detected or fuel, power steering fluid,
transmission fluid or brake fluid leaks are suspected, the
cause should be located and corrected immediately.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71
2

UNDERSTANDING YOUR INSTRUMENT PANEL
CONTENTS

Instrument Panel Features.................170

Instrument Cluster — Premium.............171

Instrument Cluster Descriptions............172

Electronic Vehicle Information Center (EVIC) —
If Equipped...........................183
▫Engine Oil Change Indicator System........184
▫EVIC Functions.......................185
▫Compass/Temperature/Audio............186
▫Average Fuel Economy.................186▫Distance To Empty (DTE)...............187
▫Elapsed Time........................187
▫Tire Pressure Monitor (TPM).............187
▫Personal Settings (Customer-Programmable
Features)...........................187

Radio General Information................193
▫Radio Broadcast Signals.................193
▫Two Types Of Signals..................1944

4. Oil Pressure Warning Light
Shows low engine oil pressure. The light will come
on and remain on when the ignition switch is
turned from the OFF to the ON position, and the light
will turn off after the engine is started. If the light does
not come on during starting, have the system checked by
an authorized dealer.
If the light comes on and remains on while driving, stop
the vehicle and shut OFF the engine. DO NOT OPERATE
THE VEHICLE UNTIL THE CAUSE IS CORRECTED.
The light does not show the quantity of oil in the engine.
This can be determined using the procedure shown in
Section 7.
5. Low Fuel Warning Light
When the fuel level drops to two gallons, the fuel
symbol will light and a single chime will sound.6. Speedometer
Indicates vehicle speed.
7. Airbag Warning Light
The light comes on and remains on for six to
eight seconds as a bulb check when the ignition
switch is first turned ON. If the light does not
come on during starting, stays on, or comes on
while driving, have the system checked by an authorized
dealer.
8. Turn Signal Indicator Light
The arrows will flash in unison with the exterior
turn signal, when using the turn signal lever.
9. High Beam Indicator Light
This light shows that the headlights are on high
beam. Push the turn signal lever away from the
steering wheel to switch the headlights from high or low
beam.
UNDERSTANDING YOUR INSTRUMENT PANEL 173
4

Many states have laws requiring tire replacement at this
point.
Life of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style
•Tire pressure
•Distance driven
WARNING!
Tires and the spare tire should be replaced after six
years, regardless of the remaining tread. Failure to
follow this warning can result in sudden tire failure.
You could lose control and have an accident resulting
in serious injury or death.Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed. (Refer to the paragraph on
“Tread Wear Indicators”). Refer to the “Tire and Loading
Information” placard for the size designation of your tire.
The service description and load identification will be
found on the original equipment tire. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle. We recommend
that you contact your original equipment or an autho-
rized tire dealer with any questions you may have on tire
specifications or capability.
298 STARTING AND OPERATING

the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
control to maximum heat, the Mode control to floor, and
the fan control to HIGH. This allows the heater core to act
as a supplement to the radiator and aids in removing heat
from the engine cooling system.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads “H”,
pull over when safe and stop the vehicle with the
engine at idle. Turn the air conditioner OFF and wait
until the pointer drops back into the normal range.
After appropriate action has been taken, if the
pointer remains on the “H”, turn the engine OFF
immediately and call for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, refer to “Maintenance”, Section 7 of
this manual. Follow the warnings under the Cooling
System Pressure Cap paragraph.
AUTOMATIC TRANSAXLE OVERHEATING
During sustained high speed driving or trailer towing up
long grades on hot days, the automatic transaxle oil may
become too hot.
If this happens, the transmission overheat indi-
cator light will come on, and the vehicle will
slow slightly until the automatic transaxle cools
down enough to allow a return to the requested speed. If
the high speed is maintained, the overheating will reoccur,
as before, in a cyclic fashion.
WHAT TO DO IN EMERGENCIES 333
6

The best time to check the engine oil level is about five
minutes after a fully warmed engine is shut off. Do not
check oil level before starting the engine after it has sat
overnight. Checking engine oil level when the engine is
cold will give you an incorrect reading.Checking the oil while the vehicle is on level ground and
only when the engine is hot, will improve the accuracy of
the oil level readings. Maintain the oil level between the
range markings on the dipstick. The range markings will
consist of a crosshatch zone that says SAFE or a cross-
hatch zone that says MIN at the low end of the range and
MAX at the high end of the range. Adding 1 qt (1L) of oil
when the reading is at the low end of the indicated range
will result in the oil level at the full end of the indicator
range.
CAUTION!
Do not overfill the engine. Overfilling the engine as
indicated by the range markings, as described above,
on the engine oil dipstick will cause oil aeration,
which can lead to loss of oil pressure and an increase
in oil temperature. This could damage your engine.
Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 353
7

Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to “Maintenance Schedule” under Section 8.
WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency.
Brake And Power Steering System Hoses
When servicing the vehicle for scheduled maintenance,
inspect the surface of the hoses and nylon tubing for
evidence of heat and mechanical damage. Hard andbrittle rubber, cracking, tears, cuts, abrasions, and exces-
sive swelling suggest deterioration of the rubber. Particu-
lar attention should be made to examining those hose
surfaces nearest to high heat sources, such as the exhaust
manifold.
Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
Ensure nylon tubing in these areas has not melted or
collapsed.
NOTE:Often, fluids such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to ease the assembly of hoses to couplings. There-
fore, oil wetness at the hose-coupling area is not neces-
sarily an indication of leakage. Actual dripping of hot
fluid when systems are under pressure (during vehicle
operation) should be noted before a hose is replaced
based on leakage.
MAINTAINING YOUR VEHICLE 371
7

Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•Check all lights and other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the brake hoses and lines.
•Check the manual transmission fluid level.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
402 MAINTENANCE SCHEDULES
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Pressure Cap......................... 367
Selection of Coolant (Antifreeze)........... 366
Corrosion Protection..................... 376
Crankcase Emission Control System.......... 358
CruiseLight ........................... 177
Cupholders............................ 155
Customer Assistance..................... 409
Data Recorder, Event...................... 58
Dealer Service.......................... 352
Defroster, Rear Window................... 163
Defroster, Windshield................... 70,228
Delay (Intermittent) Wipers................. 128
Diagnostic System, Onboard................ 349
Dimmer Switch, Headlight................. 124
Disposal
Antifreeze (Engine Coolant)............... 368
Engine Oil........................... 355
Door Locks............................. 26Door Locks, Automatic.................... 27
Door Opener, Garage..................... 142
Downshifting.......................... 243
DriveBelts ............................ 356
Driver’s Seat Back Tilt.................... 112
Driving
Off-Pavement......................... 252
Off-Road............................ 252
On Slippery Surfaces.................... 275
Electric Remote Mirrors.................... 80
Electrical Power Outlets................... 152
Electronic Brake Control System............. 134
Anti-Lock Brake System................. 134
Brake Assist System.................... 135
Electronic Roll Mitigation................ 136
Electronic Stability Program............... 138
Traction Control System................. 136
Electronic Speed Control (Cruise Control)...... 130
INDEX 421
10

Daytime Running...................... 122
Dimmer Switch, Headlight............... 121
Electronic Stability Program
(ESP) Indicator.......................139,142
Engine Temperature Warning.............. 175
Fog ..........................123,181,389
Headlight Switch...................... 121
Headlights........................... 121
High Beam Indicator.................... 173
Instrument Cluster..................... 121
License............................. 391
Lights On Reminder.................... 122
Low Fuel............................ 173
Malfunction Indicator (Check Engine)........ 181
Map Reading......................... 120
Off-Road............................ 125
Oil Pressure.......................... 173
Seat Belt Reminder..................... 174
Security Alarm (Theft Alarm).............. 18Theft Alarm (Security Alarm).............. 176
Traction Control....................... 139
Turn Signal..................121,123,173,389
Voltage............................. 172
Warning (Instrument Cluster Description)..... 172
Loading Vehicle......................... 317
Tires ............................... 287
Locks
Child Protection........................ 30
Door................................ 26
Power Door........................... 27
Lubrication, Body....................... 363
Luggage Rack (Roof Rack)................. 164
Lumbar Support........................ 111
Maintenance Free Battery.................. 359
Maintenance, General..................... 352
Maintenance Procedures................... 352
Maintenance Schedule.................... 400
426 INDEX