2023 JEEP GLADIATOR warning

344IN CASE OF EMERGENCY
(Continued)
PREPARATIONS FOR JUMP START

Supplemental Battery — If Equipped
The battery in your vehicle is located in the right
rear of the engine compartment.

Positive (+) Battery Post – Gas Engine Positive (+) Battery Post – Diesel Engine
NOTE:The positive
(+) battery post is covered with a
protective cap. Lift up on the cap to gain access to
the post.
If your vehicle is equipped with a Stop/Start
system, it will be equipped with two batteries
Ú page 169.
See the following steps to prepare for jump
starting:

1. Apply the parking brake, shift the automatic transmission into PARK (P) (manual
transmission in NEUTRAL) and place the
ignition in OFF mode.

2. Turn off the heater, radio, and all electrical accessories.
WARNING!
Only use the positive battery post on the main
battery to jump start your vehicle. Serious
injury or death could result if you attempt to
jump start using the supplemental battery.
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 accesso -
ries contain lead and lead compounds. Wash
hands after handling.
If a “fast charger” is used while the battery is
in the vehicle, disconnect both vehicle battery
cables before connecting the charger to the
battery. Do not use a “fast charger” to provide
starting.
WARNING!

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IN CASE OF EMERGENCY345
3. If using another vehicle to jump start the battery, park the vehicle within the jumper
cable’s reach, apply the parking brake and
make sure the ignition is OFF.
JUMP STARTING PROCEDURE
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 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 a good engine ground. A
“ground” is an exposed metallic/unpainted
part of the engine, frame or chassis, such as
an accessory bracket or large bolt. The ground
must be away from the battery and the fuel
injection system.

Jump Starting Label

WARNING!
Do not allow vehicles to touch each other as
this could establish a ground connection and
personal injury could result.
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.
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.
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.
7

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IN CASE OF EMERGENCY347
Emergency Gas Can Refueling
Most gas cans will not open the flapper doors. A
funnel is provided to allow emergency refueling
with a gas can.
See the following steps for refueling:

1. Retrieve funnel from under the right rear seat.

Fuel Funnel Location
Refueling Funnel
2. Remove the fuel filler cap and insert the funnel
into same filler pipe opening as the fuel nozzle.

Inserting Funnel

3. Ensure funnel is inserted fully to hold flapper doors open.
4. Pour fuel into funnel opening.
5. Remove funnel from filler pipe, clean off prior to putting back in the spare tire storage area.
6. Tighten the fuel filler cap until clicking is heard. This is an indication the cap is properly
tightened.
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
Potential signs of vehicle overheating:
Temperature gauge is at HOT (H)
Strong smell of coolant
White smoke coming from engine or exhaust
Coolant bottle coolant has bubbles present
CAUTION!
To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel door is open or
the tank is being filled.
Never add fuel when the engine is running.
This is in violation of most state and federal
fire regulations and may cause the Malfunc -
tion Indicator Light to turn on.
A fire may result if fuel is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place fuel
containers on the ground while filling.
7

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348IN CASE OF EMERGENCY
In the event it is observed that the temperature
gauge is moving towards or close to the HOT (H)
position, you can reduce the potential for
overheating by taking the appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the trans -
mission in NEUTRAL (N), but do not increase the
engine idle speed while preventing vehicle
motion with the brakes.
If your Air Conditioner (A/C) is on, turn it off. The
A/C system adds heat to the engine cooling
system and turning the A/C off can help remove
this heat.
You can also turn the temperature control to
maximum heat, the mode control to floor and
the blower control to high. This allows the heater
core to act as a supplement to the radiator and
aids in removing heat from the engine cooling
system.
MANUAL PARK RELEASE
In order to move the vehicle in cases where the
transmission will not shift out of Park (P) (such as
a depleted battery), a Manual Park Release is
available. See the following steps to use the Manual Park
Release:

1. Firmly apply the parking brake.

2. Using a small screwdriver or similar tool,
remove the manual park release cover located
in front of the gear selector, to access the
release tether strap.

Manual Park Release Cover

WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator.
If you see or hear steam coming from under the
hood, do not open the hood until the radiator
has had time to cool. Never try to open a cooling
system pressure cap when the radiator or
coolant bottle is hot.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads “H,
” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the
pointer drops back into the normal range. If the
pointer remains on the “H” and you hear
continuous chimes, turn the engine off
immediately and call for service.
WARNING!
Always secure your vehicle by fully applying the
parking brake before activating the Manual Park
Release. In addition, you should be seated in the
driver’s seat with your foot firmly on the brake
pedal when activating the Manual Park Release.
Activating the Manual Park Release will allow
your vehicle to roll away if it is not secured by the
parking brake, or by proper connection to a tow
vehicle. Activating the Manual Park Release on
an unsecured vehicle could lead to serious
injury or death for those in or around the vehicle.

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350IN CASE OF EMERGENCY
(Continued)
Once the vehicle has been freed, push the ESC
OFF button again to restore “ESC On” mode.
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled vehicle using a commercial towing service. If the transmission and drivetrain are operable, disabled
vehicles may also be towed as described on Ú
page 205.
WARNING!
Fast spinning tires can be dangerous. Forces
generated 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 vehicle's wheels faster than
30 mph (48 km/h) or for longer than 30 sec-
onds continuously without stopping when you
are stuck and do not let anyone near a spinning
wheel, no matter what the speed.
CAUTION!
Racing the engine or spinning the wheels may
lead to transmission overheating and failure.
Allow the engine to idle with the transmission
in NEUTRAL (N) for at least one minute after
every five rocking-motion cycles. This will mini -
mize overheating and reduce the risk of clutch
or transmission failure during prolonged
efforts to free a stuck vehicle.When “rocking” a stuck vehicle by shifting
between DRIVE/SECOND gear 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 transmission shifting occurring).

CAUTION!
Towing Condition Wheels OFF The Ground 4WD MODELS
Flat Tow NONE
Automatic Transmission in PARK (P)
Manual Transmission in gear ( NOT in NEUTRAL)
Transfer Case in NEUTRAL (N)
Tow in forward direction
Wheel Lift Or Dolly Tow Front
NOT ALLOWED
Rear NOT ALLOWED
Flatbed ALLBEST METHOD
NOTE:When towing your vehicle, always follow applicable state and provincial laws. Contact state and provincial Highway Safety offices for additional details.

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352IN CASE OF EMERGENCY
(Continued)

Rear Tow Hook
Rear Tow Hooks

ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS)
This vehicle is equipped with an Enhanced
Accident Response System.
This feature is a communication network that
takes effect in the event of an impact Úpage 317.
EVENT DATA RECORDER (EDR)
This vehicle is equipped with an event data
recorder (EDR). The main purpose of an EDR is to
record data that will assist in understanding how a
vehicle’s systems performed under certain crash
or near crash-like situations, such as an air bag
deployment or hitting a road obstacle Úpage 318.
WARNING!
Do not use a chain for freeing a stuck vehicle.
Chains may break, causing serious injury or
death.
Stand clear of vehicles when pulling with tow
hooks. Tow straps may become disengaged,
causing serious injury.
CAUTION!
Tow hooks are for emergency use only, to
rescue a vehicle stranded off road. Tow straps
are recommended when towing the vehicle,
chains may cause vehicle damage.
The tow hooks must not be used to move the
vehicle off the road or where there are obsta -
cles.
Do not use the tow hooks for tow truck hookup
or highway towing.
Do not use the tow hooks to pull a vehicle onto
a flatbed truck.
Do not use the tow hooks to free a stuck
vehicle Ú page 349.
Damage to your vehicle may occur if these
guidelines are not followed Ú page 350.
CAUTION!

23_JT_OM_EN_USC_t.book Page 352

356SERVICING AND MAINTENANCE
Change the manual transmission fluid if using your vehicle for
any of the following: trailer towing, snow plowing, heavy
loading, taxi, police, delivery service (commercial service),
off-road, desert operation or more than 50% of your driving is
at sustained high speeds during hot weather, above 90°F
(32°C). X
XXXX
Change transfer case fluid if using your vehicle for any of the
following: police, taxi, fleet, or frequent trailer towing. X
X
Inspect and replace PCV valve if necessary. X
Change front and rear axle fluid if using your vehicle for police,
taxi, fleet, off-road or frequent trailer towing. X
XX
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage Or Time Passed (Whichever Comes First)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause
an accident.

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SERVICING AND MAINTENANCE361
ADDITIONAL MAINTENANCE — B6 TO B20 BIODIESEL
NOTE:
Under no circumstances should oil change intervals exceed 8,000 miles (12,875 km) or six months, whichever comes first when using biodiesel blends
greater than 5% (B5).
The owner is required to monitor mileage for B6-B20 biodiesel, the automatic oil change indicator system does not reflect the use of biofuels.
Fuel filter change interval is maintained at every second oil change. This is especially important with biodiesel usage.
For more information on using biodiesel Ú page 422.
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause
an accident.
8

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