2023 JEEP GRAND CHEROKEE battery

IN CASE OF EMERGENCY309
(Continued)
SOS Call System Limitations
Vehicles sold in Mexico
DO NOT have SOS Call
system capabilities.
SOS or other emergency line operators in Mexico
may not answer or respond to SOS system calls.
If the SOS Call system detects a malfunction, any
of the following may occur at the time the
malfunction is detected, and at the beginning of
each ignition cycle:
The overhead console lights located within the
ASSIST and SOS buttons will continuously illumi -
nate red.
The Device Screen will display the following
message “Vehicle device requires service.
Please contact an authorized dealer.”
An In-Vehicle Audio message will state “Vehicle
device requires service. Please contact an
authorized dealer.”
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop the
SOS Call system operation. These include, but are not
limited to, the following factors:

The ignition is in the OFF position
The vehicle’s electrical systems are not intact
The SOS Call system software and/or hardware
are damaged during a crash
The vehicle battery loses power or becomes
disconnected during a vehicle crash
LTE (voice/data) or 4G (data) network and/or
Global Positioning Satellite signals are unavail
-
able or obstructed

Equipment malfunction at the SOS operator facility

Operator error by the SOS operator

LTE (voice/data) or 4G (data) network congestion

Weather
Buildings, structures, geographic terrain, or
tunnels
Never place anything on or near the vehicle’s
operable network and GPS antennas. You
could prevent operable network and GPS
signal reception, which can prevent your
vehicle from placing an emergency call. An
operable network and GPS signal reception is
required for the SOS Call system to function
properly.
The SOS Call system is embedded into the
vehicle’s electrical system. Do not add after -
market electrical equipment to the vehicle’s
electrical system. This may prevent your
vehicle from sending a signal to initiate an
emergency call. To avoid interference that can
cause the SOS Call system to fail, never add
aftermarket equipment (e.g., two-way mobile
radio, CB radio, data recorder, etc.) to your
vehicle’s electrical system or modify the
antennas on your vehicle. IF YOUR VEHICLE
LOSES BATTERY POWER FOR ANY REASON
(INCLUDING DURING OR AFTER AN ACCI -
DENT), THE JEEP® CONNECT FEATURES,
APPS AND SERVICES, AMONG OTHERS, WILL
NOT OPERATE.
Modifications to any part of the SOS Call
system could cause the air bag system to fail
when you need it. You could be injured if the
air bag system is not there to help protect you.
WARNING!
WARNING!
Ignoring the overhead console light could
mean you will not have SOS Call services. If
the overhead console light is illuminated, have
an authorized dealer service the SOS Call
system immediately.

The Occupant Restraint Control module turns on
the air bag Warning Light on the instrument panel
if a malfunction in any part of the system is
detected. If the Air Bag Warning Light is illumi -
nated, have an authorized dealer service the
Occupant Restraint Control system immediately.

WARNING!
7

23_WL_OM_EN_USC_t.book Page 309

IN CASE OF EMERGENCY319
Third Row Seating — If Equipped

1. Position the wheel behind the rear fascia/
bumper facing outward. Push the end of the
winch’s cable, spring and steel sleeve
through the back of the road wheel. Making
sure the valve stem is facing the ground when
the wheel is stowed.

Installing Winch

2. Slide the road wheel on the ground until it is directly under the winch and between the rear
fascia/bumper and exhaust system heat
shields. Raise the tire by turning the lug
wrench on the winch extension clockwise until
it clicks/ratchets three times to make sure the
cable is tight.
Winch Wrench Rotation
Road Wheel Installed In Spare Location
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.
NOTE:When using a portable battery booster pack, follow
the manufacturer's operating instructions and
precautions.
CAUTION!
The winch mechanism is designed for use with
the jack wrench extension tool only. Use of air
wrench or power tool may damage the winch.
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.
7

23_WL_OM_EN_USC_t.book Page 319

320IN CASE OF EMERGENCY
(Continued)
PREPARATIONS FOR JUMP START
The battery in your vehicle is located under the
driver's front seat. There are remote terminals
located under the hood to assist in jump starting.
Jump Starting Posts

NOTE:The remote battery posts are viewed by standing
on the right side of the vehicle looking over the
fender. The positive battery post may be covered
with a protective cap. Lift up on the cap to gain
access to the positive battery post. Do not jump off
fuses. Only jump directly off positive post which
has a positive (+) symbol on or around the post.
See the following steps to prepare for jump
starting:
1. Apply the parking brake, shift the automatic
transmission into PARK (P) and turn the
ignition OFF.

2. Turn off the heater, radio, and all electrical accessories.
3. If using another vehicle to jump start the battery, park the vehicle within the jumper
cables’ reach, apply the parking brake and
make sure the ignition is OFF.
NOTE:Be sure that the disconnected cable ends do not
touch each other, or either vehicle, until properly
connected for jump starting.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.
Remote Positive (+) Post
Remote Negative (-) Post
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and
personal injury could result.
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.
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!

23_WL_OM_EN_USC_t.book Page 320

IN CASE OF EMERGENCY321
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
(exposed metallic/unpainted post of the
discharge vehicle) located directly in front of
the underhood fuse box.
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, follow the discon
-
necting procedure.
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 have the battery and charging system
tested at an authorized dealer.
REFUELING IN EMERGENCY
The vehicle is equipped with a refueling funnel
Ú page 311 for a Cap-Less Fuel System. If
refueling is necessary, while using an approved
gas can, please insert the refueling funnel into the
filler neck opening.

Refueling Funnel

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.
CAUTION!
Do not run the booster vehicle engine above
2,000 RPM since it provides no charging benefit,
wastes fuel, and can damage booster vehicle
engine.
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.
7

23_WL_OM_EN_USC_t.book Page 321

IN CASE OF EMERGENCY323
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
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.
To activate the Manual Park Release, see the
following steps:

1. Apply firm pressure to the brake pedal while seated in the driver’s seat.

2. Apply the Electric Park Brake (EPB), if possible.
3. Using a flathead screwdriver or similar tool, remove the Manual Park Release access
cover, which is to the lower left of the steering
column.

Manual Park Release Access Cover
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!
You should be seated in the driver’s seat with
your foot firmly placed on the brake pedal to
maintain control of the vehicle before activating
the Manual Park Release. If possible, you should
apply the parking brake. Activating the Manual
Park Release will allow your vehicle to roll away if
it is not secured or properly connected 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.
7

23_WL_OM_EN_USC_t.book Page 323

IN CASE OF EMERGENCY327
NOTE:
You must ensure that the Auto Park Brake
Úpage 123 feature is disabled before towing
this vehicle to avoid inadvertent Electric Park
Brake engagement. The Auto Park Brake
feature is enabled or disabled via the customer
programmable features in the Uconnect
Settings.
Vehicles with a discharged battery, or total elec -
trical failure when the Electric Park Brake (EPB)
is engaged, will need a wheel dolly or jack to
raise the rear wheels off the ground when
moving the vehicle onto a flatbed.
The Safehold feature will engage the Electric
Park Brake whenever the driver's door is
opened (if the battery is connected, ignition is
ON, transmission is not in PARK, and brake
pedal is released). If you are towing this vehicle
with the ignition in the ON/RUN mode, you must
manually disable the Electric Park Brake each
time the driver's door is opened by pressing the
brake pedal and then releasing the EPB. If you must use the accessories (wipers,
defrosters, etc.) while being towed, the ignition
must be in the ON/RUN mode.
If the vehicle's battery is discharged, instructions
on shifting the automatic transmission out of PARK
(P) in order to move the vehicle Ú
page 323.
REAR-WHEEL DRIVE MODELS
FCA US LLC recommends towing your vehicle with
all four wheels OFF the ground using a flatbed.
If flatbed equipment is not available, and the
transmission is operable, the vehicle may be towed
(with rear wheels off the ground) under the
following conditions:
The transmission must be in NEUTRAL (N). For
instructions on shifting the transmission to
NEUTRAL (N) when the engine is off
Ú page 323.
The towing speed must not exceed 30 mph
(48 km/h).
The towing distance must not exceed 30 miles
(48 km).
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. If vehicle is equipped with
Quadra-lift air suspension, secure vehicle only
with tire/wheel straps (no suspension compo -
nents or body) to prevent air suspension from
adjusting during towing against securement
straps and causing damage. Damage to your
vehicle may result from improper towing.
CAUTION!
Towing faster than 30 mph (48 km/h) or
farther than 30 miles (48 km) with rear
wheels on the ground can cause severe trans -
mission damage. Damage from improper
towing is not covered under the New Vehicle
Limited Warranty.
7

23_WL_OM_EN_USC_t.book Page 327

SERVICING AND MAINTENANCE331
MAINTENANCE PLAN
Refer to the Maintenance Plan for the required maintenance intervals.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
Change oil and filter.
Rotate the tires at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
Inspect battery and clean and tighten terminals as required.
Inspect the CV/Universal joints.
Inspect brake pads, shoes, rotors, drums, hoses and parking brake.
Inspect engine cooling system protection and hoses.
Inspect exhaust system.
Inspect engine air cleaner filter if using in dusty or off-road conditions. Replace engine air cleaner filter, as necessary.
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
Additional Inspections
Inspect the CV/Universal joints. X X X X X X X X X X X X X X
Inspect front suspension, tie rod ends,
and replace if necessary. X
X X XX XX
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23_WL_OM_EN_USC_t.book Page 331

338SERVICING AND MAINTENANCE
MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free
battery. Water will never have to be added, and
periodic maintenance is not required.
PRESSURE WASHING
Cleaning the engine compartment with a high
pressure washer is not recommended.
VEHICLE MAINTENANCE
An authorized dealer has the qualified service
personnel, 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.
ENGINE OIL
Engine Oil Selection
Use only the manufacturer's recommended fluid
Úpage 401.
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 over a battery when
attaching clamps. If acid splashes in eyes or
on skin, flush the area immediately with large
amounts of water. Refer to Jump Starting
Procedure Ú page 320.
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.
CAUTION!
It is essential when replacing the cables on
the battery that the positive cable is attached
to the positive post and the negative cable is
attached to the negative post. Battery posts
are marked positive (+) and negative (-) and
are identified on the battery case. Cable
clamps should be tight on the terminal posts
and free of corrosion.
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 voltage.
CAUTION!
Precautions have been taken to safeguard all
parts and connections however, the pressures
generated by these machines is such that
complete protection against water ingress
cannot be guaranteed.
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 service job, take your vehicle
to a competent mechanic.

23_WL_OM_EN_USC_t.book Page 338