2014 JEEP GRAND CHEROKEE jump start

•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 for
four minutes 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 charging
system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essential elec-
trical 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 authorized dealer.
If jump starting is required, refer to “Jump Starting Proce-
dures” 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.
316 UNDERSTANDING YOUR INSTRUMENT PANEL

Extreme Cold Weather (Below –20°F Or 29°C)
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (avail-
able from your authorized dealer) is recommended.
If Engine Fails To Start
WARNING!
•Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
• 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.
(Continued)
WARNING! (Continued)
•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. Press and release the ENGINE START/STOP button once.
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STARTING AND OPERATING 395

WHAT TO DO IN EMERGENCIES
CONTENTS
HAZARD WARNING FLASHERS ...........484
 IF YOUR ENGINE OVERHEATS ............484
 WHEEL AND TIRE TORQUE
SPECIFICATIONS ..................... .485
▫ Torque Specifications ...................485
 JACKING AND TIRE CHANGING ..........487
▫ Run Flat Tires ....................... .488
▫ Jack Location ....................... .489
▫ Spare Tire Stowage ....................489
▫ Preparations For Jacking ................490 ▫
Jacking Instructions ...................491
▫ Road Tire Installation ...................498
 JUMP-STARTING ..................... .498
▫ Preparations For Jump-Start ..............499
▫ Jump-Starting Procedure ................501
 FREEING A STUCK VEHICLE .............503

EMERGENCY TOW HOOKS — IF EQUIPPED . . .504
 MANUAL PARK RELEASE ................505
 TOWING A DISABLED VEHICLE ...........508
6

Road Tire Installation
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shapedend of the nut toward the wheel. Lightly tighten the
lug nuts.
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.
498 WHAT TO DO IN EMERGENCIES

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.
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 — Remote Positive (+)Post (covered with protective cap)
2 — Remote Negative (-)Post
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WHAT TO DO IN EMERGENCIES 499

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 posi- tive (+)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.
500 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 electri-
cal spark could cause the battery to explode and
(Continued)
6
WHAT TO DO IN EMERGENCIES 501

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 (-)jumper cable from the
remote negative (-)post of the discharged vehicle.
2. Disconnect the negative end (-)of the jumper cable
from the negative (-)post of the booster battery.
3. Disconnect the opposite end of the positive (+)jumper
cable from the positive (+)post of the booster battery. 4. Disconnect the positive
(+)end of the jumper cable
from the remote positive (+)post of the discharged
vehicle.
5. Reinstall the protective cover over the remote posi- tive (+)battery 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.
502 WHAT TO DO IN EMERGENCIES