jump start JEEP GRAND CHEROKEE 2015 WK2 / 4.G Owners Manual

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-essential
electrical 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
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off.
If the light remains lit with the engine running, your
vehicle will usually be drivable. However, see an autho-
rized dealer for service as soon as possible. If the light is
flashing when the engine is running, immediate service is
312 UNDERSTANDING YOUR INSTRUMENT PANEL

WARNING!(Continued)
•Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle.
•If the vehicle has a discharged battery, booster
cables may be used to obtain a start from a booster
battery or the battery in another vehicle. This type
of start can be dangerous if done improperly. Refer
to “Jump Starting” in “What To Do In Emergen-
cies” for further information.
Clearing A Flooded Engine (Using ENGINE
START/STOP Button)
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weather#proce-
dures, it may be flooded. To clear any excess fuel:
1. Press and hold the brake pedal.
2. Press the accelerator pedal all the way to the floor and
hold it.
3. Push and release the ENGINE START/STOP button
once.
The starter motor will engage automatically, run for 10
seconds, and then disengage. Once this occurs, release
the accelerator pedal and the brake pedal, wait 10 to 15
seconds, then repeat the “Normal Starting” procedure.
5
STARTING AND OPERATING 425

WHAT TO DO IN EMERGENCIES
CONTENTS
!HAZARD WARNING FLASHERS...........568
!IF YOUR ENGINE OVERHEATS............568
!WHEEL AND TIRE TORQUE
SPECIFICATIONS......................569
▫Torque Specifications...................570
!JACKING AND TIRE CHANGING..........571
▫Jack Location........................572
▫Spare Tire Stowage....................573
▫Preparations For Jacking................573
▫Jacking Instructions...................575
▫Road Tire Installation...................581
!JUMP-STARTING......................582
▫Preparations For Jump-Start..............583
▫Jump-Starting Procedure................585
!FREEING A STUCK VEHICLE.............587
!EMERGENCY TOW HOOKS — IF EQUIPPED . .588
!MANUAL PARK RELEASE................589
!TOWING A DISABLED VEHICLE...........593
▫Two-Wheel Drive Models................595
▫Four-Wheel Drive Models................596
6

WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts fully until the vehicle has
been lowered. Failure to follow this warning may
result in personal injury.
3. Lower the vehicle to the ground by turning the jack
handle counterclockwise.
4. Refer to Torque Table for proper lug nut torque.
5. After 25 miles (40 km) check the lug nut torque with a
torque wrench to ensure that all lug nuts are properly
seated against the wheel.
JUMP-STARTING
If your vehicle has a discharged battery it can be jump-
started using a set of jumper cables and a battery in
another vehicle or by using a portable battery booster
pack. Jump-starting can be dangerous if done improperly
so please follow the procedures in this section carefully.
WARNING!
Do not attempt jump-starting if the battery is frozen.
It could rupture or explode and cause personal injury.
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.
582 WHAT TO DO IN EMERGENCIES

NOTE:When using a portable battery booster pack
follow the manufacturer’s operating instructions and
precautions.
Preparations For Jump-Start
The battery in your vehicle is located under the passen-
ger’s front seat. There are remote locations located under
the hood to assist in jump-starting.
Remote Battery Posts
1—RemotePositive(+)Post (covered with protective cap)2 — Remote Negative(-)Post
6
WHAT TO DO IN EMERGENCIES 583

WARNING!
•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 rings, watch
bands and bracelets that could make an inadvertent
electrical contact. You could be seriously injured.
•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.
NOTE:Be sure that the disconnected ends of the cables
do not touch while still connected to the other vehicle.
1. Set the parking brake, shift the automatic transmission
into PARK and turn the ignition to LOCK.
2. Turn off the heater, radio, and all unnecessary electri-
cal accessories.
3.Remove the protective cover over the remote positive
(+)battery post. Pull upward on the cover to remove it.
4. If using another vehicle to jump-start the battery, park
the vehicle within the jumper cables reach, set the
parking brake and make sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
584 WHAT TO DO IN EMERGENCIES

Jump-Starting Procedure
WARNING!
Failure to follow this jump-starting procedure could
result in personal injury or property damage due to
battery explosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle
or the discharged vehicle.
NOTE:Make sure at all times that unused ends of
jumper cables are not contacting each other or either
vehicle while making connections.
Connecting The Jumper Cables
1. Connect the positive(+)end of the jumper cable to the
remote positive(+)post of the discharged vehicle.
2. Connect the opposite end of the positive(+)jumper
cable to the positive(+)post of the booster battery.
3. Connect the negative end(-)of the jumper cable to the
negative(-)post of the booster battery.
4. Connect the opposite end of the negative(-)jumper
cable to the remote negative(-)post of the vehicle with
the discharged battery.
WARNING!
Do not connect the jumper 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. Only use the specific ground point, do
not use any other exposed metal parts.
6
WHAT TO DO IN EMERGENCIES 585

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 phones, etc.). Eventually, if
plugged in long enough without engine operation,
the vehicle’s battery will discharge sufficiently to
degrade battery life and/or prevent the engine from
starting.
586 WHAT TO DO IN EMERGENCIES

Belt replacement on some models requires the use of
special tools, we recommend having your vehicle ser-
viced at an authorized dealer.
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.
WARNING!
•Battery fluid is a corrosive acid solution and can
burn or even blind you. Do not allow battery fluid
to contact your eyes, skin, or clothing. Do not lean
(Continued)
WARNING!(Continued)
over a battery when attaching clamps. If acid
splashes in eyes or on skin, flush the area imme-
diately with large amounts of water. Refer to
“Jump-Starting Procedures” in “What To Do In
Emergencies” for further information.
•Battery gas is flammable and explosive. Keep
flame or sparks away from the battery. Do not use
a booster battery or any other booster source with
an output greater than 12 Volts. Do not allow cable
clamps to touch each other.
•Battery posts, terminals, and related accessories
contain lead and lead compounds. Wash hands
after handling.7
MAINTAINING YOUR VEHICLE 615

Door Locks..............................31
Child-Protection Door Lock — Rear Doors......34
Door Locks............................33
Door Locks, Automatic......................33
Door Opener, Garage.......................248
Driver Information Display
DID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..305
Instrument Cluster Display................305
Driving................................457
Off-Pavement..........................457
Off-Road.............................457
E-85 Fuel...............................532
Economy (Fuel) Mode......................429
Electrical Outlet, Auxiliary (Power Outlet)........265
Electric Rear Window Defrost.................283
Electric Remote Mirrors.....................132
Electronic Brake Control System...............473
Brake Assist System.....................475
Electronic Roll Mitigation (ERM)..............476
Electronic Speed Control (Cruise Control)........188
Electronic Stability Control (ESC)..............477
Electronic Vehicle Information Center (EVIC)......298
Emergency, In Case of
Freeing Vehicle When Stuck................587
Hazard Warning Flasher..................568
Jump Starting..........................582
Tow Hooks............................588
Emission Control System Maintenance..........603
Engine
Air Cleaner...........................610
Block Heater..........................426
Break-In Recommendations................107
Compartment..........................601
Compartment Identification................601
Coolant (Antifreeze).....................670
Cooling..............................632
Exhaust Gas Caution.....................109
698 INDEX