2015 JEEP GRAND CHEROKEE battery

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

Indicator Light (MIL)” is functioning and is not on when
the engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check if
your vehicle’s OBD II system is ready, you must do the
following:
1. Cycle the ignition switch to the ON position, but do
not crank or start the engine.
NOTE:If you crank or start the engine, you will have to
start this test over.2. As soon as you cycle the ignition switch to the ON
position, you will see the Malfunction Indicator Light
(MIL) symbol come on as part of a normal bulb check.
3. Approximately 15 seconds later, one of two things will
happen:
•The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition or start the engine. This means that your
vehicle’s OBD II system isnot readyand you should
notproceed to the I/M station.
•The MIL will not flash at all and will remain fully
illuminated until you place the ignition in the off
position or start the engine. This means that your
vehicle’s OBD II system isreadyand you can proceed
to the I/M station.
If your OBD II system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
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MAINTAINING YOUR VEHICLE 529

recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD II
system to update. A recheck with the above test routine
may then indicate that the system isnow ready.
Regardless of whether your vehicle’s OBD II system is
ready or not, if the MIL is illuminated during normal
vehicle operation you should have your vehicle serviced
before going to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the engine
running.
REPLACEMENT PARTS
Use of genuine MOPAR® parts for normal/scheduled
maintenance and repairs is highly recommended to en-
sure the designed performance. Damage or failures
caused by the use of non-MOPAR® parts for mainte-
nance and repairs will not be covered by the New Vehicle
Limited Warranty.
DEALER SERVICE
Your authorized dealer has the qualified service person-
nel, special tools, and equipment to perform all service
operations in an expert manner. Service Manuals are
available which include detailed service information for
your vehicle. Refer to these Service Manuals before
attempting any procedure yourself.
NOTE:Intentional tampering with emissions control
systems may void your warranty and could result in civil
penalties being assessed against you.
WARNING!
You can be badly injured working on or around a
motor vehicle. Only do service work for which you
have the knowledge and the proper equipment. If
you have any doubt about your ability to perform a
530 MAINTAINING YOUR VEHICLE

Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic main-
tenance required.
CAUTION!
•Do not use a portable battery booster pack or any
other booster source with a system voltage greater
than 12 Volts or damage to the battery, starter
motor, alternator or electrical system may occur.
•Accessories that can be plugged into the vehicle
power outlets draw power from the vehicle’s bat-
tery, even when not in use (i.e., cellular phones,
etc.). Eventually, if plugged in long enough, the
vehicle’s battery will discharge sufficiently to de-
grade battery life and/or prevent the engine from
starting.
WARNING!
•When temperatures are below the freezing point,
electrolyte in a discharged battery may freeze. Do
not attempt jump-starting because the battery
could rupture or explode and cause personal injury.
Battery temperature must be brought above the
freezing point before attempting a jump-start.
•Take care to avoid the radiator cooling fan when-
ever the hood is raised. It can start anytime the
ignition switch is on. You can be injured by moving
fan blades.
•Remove any metal jewelry such as watch bands or
bracelets that might make an inadvertent electrical
contact. You could be seriously injured.
(Continued)
540 MAINTAINING YOUR VEHICLE

WARNING!(Continued)
•Batteries contain sulfuric acid that can burn your
skin or eyes and generate hydrogen gas which is
flammable and explosive. Keep open flames or
sparks away from the battery.
•Do not allow vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
•Do not connect the cable to the negative post (-) of
the discharged battery. The resulting electrical
spark could cause the battery to explode and could
result in personal injury.
Air Conditioner Maintenance
For best possible performance, your air conditioner
should be checked and serviced by an authorized dealer
at the start of each warm season. This service should
include cleaning of the condenser fins and a performancetest. Drive belt tension should also be checked at this
time.
WARNING!
•Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause the
system to fail, requiring costly repairs. Refer to
Warranty Information Book, located on the DVD,
for further warranty information.
•The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced technician.
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MAINTAINING YOUR VEHICLE 541

Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains car-
tridge fuses, micro fuses, relays, and circuit breakers. A
description of each fuse and component may be stamped
on the inside cover, otherwise the cavity number of each
fuse is stamped on the inside cover that corresponds to
the following chart.
Cavity Cartridge Fuse Micro Fuse Description
F03 60 Amp Yellow – Radiator Fan
F05 40 Amp Green – Compressor for Air Suspension - If Equipped
F06 40 Amp Green – Anti-lock Brakes/Electronic Stability Control
Pump
Power Distribution Center
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Cavity Cartridge Fuse Micro Fuse Description
F44 – 10 Amp Red Diagnostic Port
F46 – 10 Amp Red Tire Pressure Monitor - If Equipped
F49 – 10 Amp Red Integrated Central Stack / Climate Control
F50 – 20 Amp Yellow Air Suspension Control Module - If
Equipped
F51 – 15 Amp Blue Ignition Node Module / Keyless Ignition /
Steering Column Lock
F52 – 5 Amp Tan Battery Sensor
F53 – 20 Amp Yellow Trailer Tow – Left Turn/Stop Lights - If
Equipped
F55 – 10 Amp Red DTV / DSRC
F56 – 15 Amp Blue Additional Content (Diesel engine only)
F57 – 15 Amp Blue HID Headlamps LH - If Equipped
F59 – 10 Amp Red Purging Pump (Diesel engine only)
F60 – 15 Amp Blue Transmission Control Module
578 MAINTAINING YOUR VEHICLE

VEHICLE STORAGE
If you are leaving your vehicle dormant for more than 21
days you may want to take steps to protect your battery.
You may:
•Disconnect the negative cable from the battery.•Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior Bulbs
Bulb Number
Glove Box Lamp 194
Grab Handle Lamp L002825W5W
Overhead Console Reading Lamps VT4976
Rear Cargo Lamp 214–2
Visor Vanity Lamp V26377
Underpanel Courtesy Lamps 9067
MAINTAINING YOUR VEHICLE 583