2015 JEEP GRAND CHEROKEE Engine

WARNING!(Continued)
•Chock the wheel diagonally opposite the wheel to
be raised.
•Set the parking brake firmly and set an automatic
transmission in PARK.
•
Never start or run the engine with the vehicle on a
jack.
•Do not let anyone sit in the vehicle when it is on a
jack.
•Do not get under the vehicle when it is on a jack. If
you need to get under a raised vehicle, take it to a
service center where it can be raised on a lift.
•Only use the jack in the positions indicated and for
lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
(Continued)
WARNING!(Continued)
•To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
CAUTION!
Do not attempt to raise the vehicle by jacking on
locations other than those indicated in the Jacking
Instructions for this vehicle.
Jack Warning Label
6
WHAT TO DO IN EMERGENCIES 507

WARNING!(Continued)
could result in personal injury. Only use the specific
ground point, do not use any other exposed metal
parts.
5. Start the engine in the vehicle that has the booster
battery, let the engine idle a few minutes, and then
start the engine in the vehicle with the discharged
battery.
6. Once the engine is started, remove the jumper cables
in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative(-)end of the jumper cable
from the remote negative(-)post of the discharged
vehicle.
2. Disconnect the opposite end of the negative(-)jumper
cable from the negative(-)post of the booster battery.3. Disconnect the positive(+)end of the jumper cable
from the positive(+)post of the booster battery.
4. Disconnect the opposite end of the positive(+)jumper
cable from the remote positive(+)post of the dis-
charged vehicle.
5. Reinstall the protective cover over the remote positive
(+)post of the discharged vehicle.
If frequent jump-starting is required to start your vehicle
you should have the battery and charging system tested
at your authorized dealer.
CAUTION!
Accessories plugged into the vehicle power outlets
draw power from the vehicle’s battery, even when not
in use (i.e., cellular devices, etc.). Eventually, if
plugged in long enough without engine operation,
(Continued)
518 WHAT TO DO IN EMERGENCIES

CAUTION!(Continued)
the vehicle’s battery will discharge sufficiently to
degrade battery life and/or prevent the engine from
starting.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it
can often be moved using a rocking motion. Turn the
steering wheel right and left to clear the area around the
front wheels. Push and hold the lock button on the shift
lever. Then shift back and forth between DRIVE and
REVERSE while gently pressing the accelerator.
NOTE:Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or less.
Whenever the transmission remains in NEUTRAL for
more than two seconds, you must push the brake pedal
to engage DRIVE or REVERSE.Use the least amount of accelerator pedal pressure that
will maintain the rocking motion without spinning the
wheels or racing the engine.
NOTE:Push theESC Offswitch (if necessary), to place
the Electronic Stability Control (ESC) system inPartial
Offmode, before rocking the vehicle. Refer to “Elec-
tronic Brake Control” in “Starting And Operating” for
further information. Once the vehicle has been freed,
push theESC Offswitch again to restoreESC On
mode.
CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
(Continued)
6
WHAT TO DO IN EMERGENCIES 519

CAUTION!(Continued)
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.
WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause damage, or
even failure, of the axle and tires. A tire could
explode and injure someone. Do not spin your vehi-
cle’s wheels faster than 30 mph (48 km/h) or for
longer than 30 seconds continuously without stop-
ping when you are stuck and do not let anyone near
a spinning wheel, no matter what the speed.
CAUTION!
•When “rocking” a stuck vehicle by shifting be-
tween DRIVE and REVERSE, do not spin the
wheels faster than 15 mph (24 km/h), or drivetrain
damage may result.
•Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no trans-
mission shifting occurring).
MANUAL PARK RELEASE
WARNING!
Always secure your vehicle by fully applying the
parking brake, before activating the Manual Park
(Continued)
520 WHAT TO DO IN EMERGENCIES

MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 6.4L..........527
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .528
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS..........................528
REPLACEMENT PARTS..................530
DEALER SERVICE......................530
MAINTENANCE PROCEDURES...........531
▫Engine Oil..........................532
▫Engine Oil Filter......................535
▫Engine Air Cleaner Filter................535▫Accessory Drive Belt Inspection...........538
▫Maintenance-Free Battery...............540
▫Air Conditioner Maintenance.............541
▫Body Lubrication.....................546
▫Windshield Wiper Blades...............546
▫Adding Washer Fluid..................553
▫Exhaust System......................554
▫Cooling System......................556
▫Brake System........................562
▫Front/Rear Axle Fluid..................564
7

▫Transfer Case........................565
▫Automatic Transmission................566
▫Appearance Care And Protection From
Corrosion...........................568
FUSES..............................574
▫Power Distribution Center...............575
VEHICLE STORAGE....................583
REPLACEMENT BULBS.................583
BULB REPLACEMENT..................585
▫High Intensity Discharge Headlamps (HID) — If
Equipped...........................585
▫Halogen Headlamps — If Equipped........586▫Front Turn Signal.....................587
▫Front Fog Lamps.....................587
▫Rear Tail, Stop, Turn Signal, And Backup
Lamps.............................588
▫Rear Liftgate Mounted Tail Lamp..........589
▫Center High-Mounted Stop Lamp (CHMSL) . .590
▫Rear License Lamp....................591
FLUID CAPACITIES....................591
FLUIDS, LUBRICANTS, AND GENUINE
PARTS ..............................592
▫Engine.............................592
▫Chassis............................593
526 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT — 6.4L
1 — Power Distribution Center (Fuses) 6 — Air Cleaner Filter
2 — Engine Oil Dipstick 7 — Power Steering Fluid Reservoir
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Washer Fluid Reservoir
7
MAINTAINING YOUR VEHICLE 527

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing, while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
528 MAINTAINING YOUR VEHICLE