2015 JEEP GRAND CHEROKEE low oil pressure

CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge reads
“H” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on the “H” and you hear continuous chimes,
turn the engine off immediately and call an autho-
rized dealer 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 an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
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WARNING!(Continued)
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
12. Brake Warning Light
This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on it may
indicate that the parking brake is applied, that
the brake fluid level is low, or that there is a problem with
the anti-lock brake system reservoir.
If the light remains on when the parking brake has been
disengaged, and the fluid level is at the full mark on the
master cylinder reservoir, it indicates a possible brake
hydraulic system malfunction or that a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (ABS) / Electronic Stability Control (ESC) system.
In this case, the light will remain on until the condition
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DID Messages
•Front Seatbelts Unbuckled
•Driver Seatbelt Unbuckled
•Passenger Seatbelt Unbuckled
•Service Air Bag System
•Traction Control Off
•Washer Fluid Low
•Oil Pressure Low
•Oil Change Due
•Fuel Low
•Service Antilock Brake System
•Service Electronic Throttle Control
•Service Power Steering•Cruise Off
•Cruise Ready
•ACC Override
•Cruise Set To XXX MPH
•Tire Pressure Screen With Low Tire(s) “Inflate Tire to
XX”
•Service Tire Pressure System
•Speed Warning Set
•Speed Warning Exceeded
•Parking Brake Engaged
•Brake Fluid Low
•Service Electronic Braking System
•Engine Temperature Hot
300 UNDERSTANDING YOUR INSTRUMENT PANEL

•Oil Pressure Warning Light
This telltale indicates low engine oil pressure. If
the light turns on while driving, stop the vehicle and shut
off the engine as soon as possible. A chime will sound
when this light turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
•Oil Temperature Warning Light
This telltale indicates engine oil temperature is
high. If the light turns on while driving, stop
the vehicle and shut off the engine as soon as
possible.
•Charging System Light
This light shows the status of the electrical charg-
ing system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essentialelectrical devices or increase engine speed (if at idle). If
the charging system light remains on, it means that the
vehicle is experiencing a problem with the charging
system. Obtain SERVICE IMMEDIATELY. See an autho-
rized dealer.
If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies.”
•Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. The
light will come on when the ignition is first
turned ON and remain on briefly as a bulb
check. If the light does not come on during starting, have
the system checked by an authorized dealer.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
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DID Green Telltales
•Electronic Speed Control SET
This telltale will illuminate green when the
electronic speed control is SET. For further
information, refer to “Electronic Speed Con-
trol” in “Understanding The Features Of Your
Vehicle.”
DID Selectable Menu Items
Push and release theUPorDOWNarrow buttons until
the desired Selectable Menu icon/title is highlighted in
the DID.
Speedometer
Push and release the UP or DOWN arrow button until
the Speedometer menu is displayed in the DID. Push and
release the OK button to toggle units (km/h or mph) of
digital speedometer.
Vehicle Info (Customer Information Features)
Push and release the UP or DOWN arrow
button until the Vehicle Info icon/title is high-
lighted in the DID. Push and release the RIGHT
arrow button and Coolant Temp will be dis-
played. Push and release the LEFT or RIGHT arrow
button to scroll through the information submenus and
push and release the OK button to select or reset the
following resettable submenus:
Tire Pressure
Transmission Temperature
Oil Temperature
Oil Pressure
Oil Life
Battery Voltage
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UNDERSTANDING YOUR INSTRUMENT PANEL 307

•Brake Distance
Displays the distance it takes the vehicle to make a full
stop. Contains current and last data for distance and start
– from speed.
NOTE:The distance measurement will be aborted if the
brake pedal is released before the vehicle comes to a
complete stop.
•Brake Speed
Displays the speed the vehicle is traveling when the
brake pedal is depressed.
NOTE:Brake Distance and Speed timers will only dis-
playreadywhen vehicle is traveling at greater than
30 MPH (48 km/h).G-Force
When selected, this screen displays all four G-Force
values (two lateral and two longitudinal) as well as
steering angle.
When a G-Force greater than zero is measured, the
display will update the value real-time. As the G-Force
falls, the peak forces will continue to display.
Gauges 1
When selected, this screen displays the following values:
•Oil Temperature
Displays the actual oil temperature.
•Oil Pressure
Displays the actual oil pressure.
•Battery Voltage
Displays the actual battery voltage.
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UNDERSTANDING YOUR INSTRUMENT PANEL 339

Gauges 2
When selected, this screen displays the following values:
•Coolant Temperature
Displays the actual coolant temperature.
•Intake Air Temperature
Displays the actual intake air temperature.
•Transmission Temperature
Displays the actual transmission temperature.
Engine
When selected, this screen displays speed, horsepower,
torque, oil pressure and gear selector values.
Options
When selected, this screen allows you to set your SRT
home page picture, and configure the vehicle color.
Uconnect® RADIOS — IF EQUIPPED
For detailed information about your Uconnect® radio,
refer to your Uconnect® Supplement Manual.
iPod®/USB/MP3 CONTROL — IF EQUIPPED
This feature allows an iPod® or external USB device to be
plugged into the USB port.
iPod® control supports Mini, 4G, Photo, Nano, 5G iPod®
and iPhone® devices. Some iPod® software versions
may not fully support the iPod® control features. Please
visit Apple’s website for software updates.
For further information, refer to the Uconnect® Supple-
ment Manual.
340 UNDERSTANDING YOUR INSTRUMENT PANEL

These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes a 1/16 of an inch (1.6 mm). When the tread is
worn to the tread wear indicators, the tire should be
replaced. Refer to “Replacement Tires” in this section for
further information.
Life Of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style.
•Tire pressure - Improper cold tire inflation pressures
can cause uneven wear patterns to develop across the
tire tread. These abnormal wear patterns will reduce
tread life, resulting in the need for earlier tire replace-
ment.
•Distance driven.•Performance tires, tires with a speed rating of V or
higher, and Summer tires typically have a reduced
tread life. Rotation of these tires per the vehicle main-
tenance schedule is highly recommended.
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 a collision 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
458 STARTING AND OPERATING

Engine Oil
Checking Oil Level
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop. The best time to
check the engine oil level is about five minutes after a
fully warmed engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain
the oil level in the “SAFE” range. Adding one quart of oil
when the reading is at the bottom of the “SAFE” range
will result in an oil level at the top of the “SAFE” range
on these engines.
NOTE:Fill engine oil one quart at a time.
CAUTION!
•Overfilling or underfilling will cause oil aeration
or loss of oil pressure. This could damage your
engine.
•
Operating the engine with the oil levels below the
safe zone, or operating with oil levels that exceed the
top of the safe zone may cause engine damage.
Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
Refer to “Maintenance Schedule” for further information.
NOTE:Under no circumstances should oil change inter-
vals exceed 6,000 miles (10,000 km) or six months,
whichever occurs first.
532 MAINTAINING YOUR VEHICLE