battery JEEP WRANGLER 2017 JK / 3.G User Guide

If the engine has been flooded, it may start to run, but not
have enough power to continue running when the key is
released. If this occurs, continue cranking with the accel-
erator pedal pushed all the way to the floor. Release the
accelerator pedal and the key once the engine is running
smoothly.
If the engine shows no sign of starting after two 15-second
periods of cranking with the accelerator pedal held to the
floor, repeat the “Normal Starting” or “Extreme Cold
Weather” procedures.
With Tip Start — Automatic Transmission Only
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weather” procedures,
it may be flooded. To clear any excess fuel, push the
accelerator pedal all the way to the floor and hold it. Then,
turn the ignition switch to the START position and release
it as soon as the starter engages. The starter motor will
disengage automatically in 10 seconds. Once this occurs,
release the accelerator pedal, turn the ignition switch to the
LOCK position, wait 10 to 15 seconds, then repeat the
“Normal Starting” procedure.CAUTION!
To prevent damage to the starter, wait 10 to 15 seconds
before trying again.
After Starting
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a grounded,
three-wire extension cord.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
The engine block heater cord is found under the hood
bundled in front of the battery tray.
WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt AC electri-
cal cord could cause electrocution.
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STARTING AND OPERATING 287

HAZARD WARNING FLASHERS
The Hazard Warning flasher switch is located on the
instrument panel below the climate controls.Push the switch to turn on the Hazard Warning
flasher. When the switch is activated, all directional
turn signals will flash on and off to warn oncoming traffic
of an emergency. Push the switch a second time to turn off
the Hazard Warning flashers. This is an emergency warning system and it should not be
used when the vehicle is in motion. Use it when your
vehicle is disabled and it is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flashers will continue to operate even
though the ignition is placed in the OFF position.
NOTE:
With extended use the Hazard Warning flashers
may wear down your battery.
BULB REPLACEMENT
Replacement Bulbs
Interior Bulbs
Bulb Number
Automatic Transmission Indicator Lamp 658
Heater Control Lamps (2) 194
Rocker Switch Indicator Lamp (Rear Window Defogger,
and Rear Wash/Wipe) **
Soundbar Dome Lamp 912
** Bulbs only available from authorized dealer.
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General Information
The fuses protect electrical systems against excessive cur-
rent.
When a device does not work, you must check the electri-
cal circuit inside the fuse for a break/melt.
Also, please be aware that when using power outlets for
extended periods of time with the engine off may result in
vehicle battery discharge.
Blade Fuses
1 — Electrical Circuit
2 — Blade Fuse With Good Electrical Circuit
3 — Blade Fuse With Bad Electrical Circuit
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IN CASE OF EMERGENCY 347

Totally Integrated Power Module
The Totally Integrated Power Module is located in the
engine compartment near the battery. This center contains
cartridge fuses, mini fuses, and relays. A label that identi-
fies each component is printed on the inside of the cover.
CavityCartridge Fuse Mini Fuse Description
J1 –– –
J2 30 Amp Pink –Transfer Case Module
J3 –– –
J4 25 Amp Clear –Driver Door Node
J5 25 Amp Clear –Passenger Door Node
J6 40 Amp Green –Anti-Lock Brake System (ABS) Pump/
Stability Control System
J7 30 Amp Pink –Anti-Lock Brake System (ABS) Valve/
Stability Control System
J8 –– –
Totally Integrated Power Module
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4. Finish tightening the lug nuts. Push down on thewrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. For the correct lug nut
torque refer to “Torque Specifications” in “Technical
Specifications”. If in doubt about the correct tightness,
have them checked with a torque wrench by your
authorized dealer or service station.
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.
NOTE: When using a portable battery booster pack, follow
the manufacturer’s operating instructions and precautions.
358 IN CASE OF EMERGENCY

Preparations For Jump-Start
The battery in your vehicle is located in the right rear of the
engine compartment, behind the Power Distribution Center.
1 — Positive Battery Post
2 — Negative Battery Post
WARNING!
•Take care to avoid the radiator cooling fan whenever
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.
1. Set the parking brake, shift the automatic transmission into PARK (manual transmission in NEUTRAL) and
turn the ignition to LOCK.
2. Turn off the heater, radio, and all unnecessary electrical accessories.
3. 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.
Battery Posts
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IN CASE OF EMERGENCY 359

WARNING!
Do not allow vehicles to touch each other as this could
establish a ground connection and personal injury
could result.
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.
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.
360 IN CASE OF EMERGENCY

CAUTION!
Do not run the booster vehicle engine above 2000 rpm
since it provides no charging benefit, wastes fuel and
can damage booster vehicle engine.
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 discharged
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, the vehicle’s
battery will discharge sufficiently to degrade battery
life and/or prevent the engine from starting.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
•
On the highways — slow down.
• In city traffic — while stopped, shift transmission into
NEUTRAL, but do not increase engine idle speed.
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IN CASE OF EMERGENCY 361

Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use only tow bars and other
equipment designed for this purpose, following equipment
manufacturer ’s instructions. Use of safety chains is man-
datory. Attach a tow bar or other towing device to main
structural members of the vehicle, not to bumpers or
associated brackets. State and local laws regarding vehicles
under tow must be observed.
If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
position, not the ACC position.
If the vehicle’s battery is discharged, refer to “Gear Selector
Override” in this section for instructions on shifting the
automatic transmission out of PARK for towing.
CAUTION!
•Do not use sling type equipment when towing.
Vehicle damage may occur.
• When securing the vehicle to a flat bed truck, do not
attach to front or rear suspension components. Dam-
age to your vehicle may result from improper towing.
Without The Ignition Key
Special care must be taken when the vehicle is towed with
the ignition in the LOCK position. The only approved
method of towing without the ignition key is with a flatbed
truck. Proper towing equipment is necessary to prevent
damage to the vehicle.
Four–Wheel Drive Models
The manufacturer recommends towing with all wheels
OFF the ground. Acceptable methods are to tow the vehicle
on a flatbed or with one end of the vehicle raised and the
opposite end on a towing dolly.
If flatbed equipment is not available and the transfer case is
operable, the vehicle may be towed (in the forward direction,
with ALLwheels on the ground), IFthe transfer case is in
NEUTRAL (N) and the transmission is in PARK(for auto-
matic transmissions) or in gear ( NOTinNEUTRAL, for
manual transmissions). Refer to “Recreational Towing” in
“Starting And Operating” for detailed instructions.
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SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................371
▫ Maintenance Plan ...................... .372
▫ Heavy Duty Use Of The Vehicle ............376
 ENGINE COMPARTMENT .................377
▫ Engine Compartment — 3.6L ..............377
▫ Checking Oil Level .....................378
▫ Adding Washer Fluid ...................378
▫ Maintenance-Free Battery .................378
 DEALER SERVICE ...................... .379
▫ Engine Oil .......................... .380
▫ Engine Oil Filter ...................... .381
▫ Engine Air Cleaner Filter .................381
▫ Accessory Drive Belt Inspection ............384
▫ Air Conditioner Maintenance ..............385▫
Body Lubrication ..................... .389
▫ Windshield Wiper Blades .................389
▫ Exhaust System ....................... .394
▫ Cooling System ....................... .395
▫ Brake System ........................ .400
▫ Front/Rear Axle Fluid ...................401
▫ Transfer Case ........................ .402
▫ Automatic Transmission ..................402
▫ Manual Transmission — If Equipped ........405
 RAISING THE VEHICLE ..................405
 TIRES ............................... .405
▫ Tire Safety Information ..................405
▫ T

ires — General Information ..............413
▫ Tire Types ........................... .419
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