2021 JEEP GRAND CHEROKEE Battery

NOTE:
• This feature can be programmed through
the Uconnect system. Refer to “Uconnect
Settings” in “Multimedia” in the Owner’s
Manual for further information.
• The headlight delay feature is automati-
cally activated if the headlight switch is left
in the A (auto) position when the ignition is
placed in the OFF position.
Lights-On Reminder
If the headlights, parking lights, or cargo
lights are left on after the ignition is turned
OFF, a chime will sound when the driver’s
door is opened.
Front And Rear Fog Lights — If Equipped
The front and rear fog lights may be operated
as desired when visibility is poor due to fog.
The fog lights will activate in the following
order: Push the headlight switch once and
the front fog lights come on. Push the switch
a second time and the rear fog lights will
come on (front fog lights stay on). Push the
switch a third time, and the rear fog lights
turn off (front fog stays on). Push the switch a
fourth time, and the front fog turns off.NOTE:
The headlight switch must first be turned to
the position lights or headlights position be-
fore the fog lamp switch can be pushed in.
Turn Signals
Move the multifunction lever up or down and
the arrows on each side of the instrument
cluster flash to show proper operation of the
front and rear turn signal lights.NOTE:
If either light remains on and does not flash,
or there is a very fast flash rate, check for a
defective outside light bulb. If an indicator
fails to light when the lever is moved, it would
suggest that the indicator bulb is defective.
Automatic Headlight Leveling — HID
Headlights Only
This feature prevents the headlights from
interfering with the vision of oncoming driv-
ers. Headlight leveling automatically adjusts
the height of the headlight beam in reaction
to changes in vehicle pitch.
Battery Saver
To protect the life of your vehicle’s battery,
load shedding is provided for both the interior
and exterior lights.
If the ignition is OFF and any door is left ajar
for 10 minutes or the dimmer control is
rotated all the way up to the dome on position
for 10 minutes, the interior lights will auto-
matically turn off.
Fog Light Switch
GETTING TO KNOW YOUR VEHICLE
40

NOTE:
Battery saver mode is canceled if the ignition
is ON.
If the headlights remain on while the ignition
is cycled OFF, the exterior lights will auto-
matically turn off after eight minutes. If the
headlights are turned on and left on for eight
minutes while the ignition is OFF, the exterior
lights will automatically turn off.
NOTE:
The battery saver mode is canceled if the
ignition is OFF and the headlamp switch is in
the park lamp position. The parking lamps
will remain on and drain the vehicle's battery.
WINDSHIELD WIPERS AND
WASHERS
The windshield wiper/washer controls are lo-
cated on the multifunction lever on the left
side of the steering column. The front wipers
are operated by rotating a switch, located on
the end of the lever. For information on the
rear wiper/washer, refer to “Rear Window
Wiper/Washer” in this section.
Windshield Wiper Operation
Rotate the end of the lever to one of the first
four detent positions for intermittent set-
tings, the fifth detent for low wiper operation
and the sixth detent for high wiper operation.
CAUTION!
Always remove any buildup of snow that
prevents the windshield wiper blades from
returning to the “park” position. If the
windshield wiper switch is turned off, and
the blades cannot return to the “park”
position, damage to the wiper motor may
occur.
Intermittent Wiper System
Use one of the four intermittent wiper set-
tings when weather conditions make a single
wiping cycle, with a variable delay between
cycles, desirable. At driving speeds above
10 mph (16 km/h), the delay can be regu-
lated from a maximum of approximately
18 seconds between cycles (first detent), to a
cycle every one second (fourth detent).
NOTE:
If the vehicle is moving less than 10 mph
(16 km/h), delay times will be doubled.
Windshield Washer Operation
To use the washer, push on the end of the
lever (toward the steering wheel) and hold
while spray is desired. If the lever is pushed
while in the intermittent setting, the wipers
will turn on and operate for several wipe
cycles after the end of the lever is released,
and then resume the intermittent interval
previously selected.
If the end of the lever is pushed while the
wipers are in the off position, the wipers will
operate for several wipe cycles, then turn off.
Multifunction Lever
41

The rear power outlet may be located in the
right rear cargo area.The power outlets are labeled with either a
“key” or a “battery” symbol to indicate how
the outlet is powered. Power outlets labeled
with a “key” are powered when the ignition
switch is in the ON/RUN or ACC position,
while the outlets labeled with a “battery” are
connected directly to the battery and pow-
ered at all times.NOTE:
• Do not exceed the maximum power of
160 Watts (13 Amps) at 12 Volts. If the
160 Watt (13 Amp) power rating is ex-
ceeded, the fuse protecting the system will
need to be replaced.
• Power outlets are designed for accessory
plugs only. Do not insert any other object in
the power outlet as this will damage the
outlet and blow the fuse. Improper use of
the power outlet can cause damage not
covered by your new vehicle warranty.
• The rear cargo power outlet can be switched
to “battery” powered all the time by switch-
ing the power outlet right rear quarter panel
fuse in the fuse panel.
CAUTION!
• Do not exceed the maximum power of
160 Watts (13 Amps) at 12 Volts. If the
160 Watt (13 Amp) power rating is ex-
ceeded the fuse protecting the system
will need to be replaced.
Center Console Power OutletRear Cargo Power Outlet
63

CAUTION!
• Power outlets are designed for accessory
plugs only. Do not insert any other object
in the power outlets as this will damage
the outlet and blow the fuse. Improper
use of the power outlet can cause dam-
age not covered by your New Vehicle
Limited Warranty.
WARNING!
To avoid serious injury or death:
• Do not insert any objects into the
receptacles.
• Do not touch with wet hands.
• Close the lid when not in use.
• If this outlet is mishandled, it may
cause an electric shock and failure.
CAUTION!
•Many accessories that can be plugged in
draw power from the vehicle's battery, even
when not in use (i.e., cellular phones,
etc.). Eventually, if plugged in long
enough, the vehicle's battery will discharge
sufficiently to degrade battery life and/or
prevent the engine from starting.
• Accessories that draw higher power (i.e.,
coolers, vacuum cleaners, lights, etc.),
will degrade the battery even more
quickly. Only use these intermittently
and with greater caution.
• After the use of high power draw acces-
sories, or long periods of the vehicle not
being started (with accessories still
plugged in), the vehicle must be driven a
sufficient length of time to allow the
alternator to recharge the vehicle's
battery.
• Power outlets are designed for accessory
plugs only. Do not hang any type of
accessory or accessory bracket from the
plug. Improper use of the power outlet
can cause damage.
ROOF LUGGAGE RACK — IF
EQUIPPED
The crossbars and siderails are designed to
carry the weight on vehicles equipped with a
luggage rack. The load must not exceed
150 lbs (68 kg), and should be uniformly
distributed over the luggage rack crossbars.
NOTE:
If not equipped with crossbars, your autho-
rized dealer can order and install Mopar
crossbars built specifically for this roof rack
system.
Distribute cargo weight evenly on the roof
rack crossbars. The roof rack does not in-
crease the total load carrying capacity of the
vehicle. Be sure the total load of cargo inside
the vehicle plus that on the external rack
does not exceed the maximum vehicle load
capacity.
To move the crossbars, loosen the attach-
ments, located at the upper edge of each
crossbar, approximately eight turns using the
anti-theft wrench provided with the Mopar
crossbars. Then, move the crossbar to the
desired position, keeping the crossbars par-
GETTING TO KNOW YOUR VEHICLE
64

If brake failure is indicated, immediate repair
is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
Have the vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake
System (ABS) are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is re-
quired.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from
the OFF position to the ON/RUN position.
The light should illuminate for approximately
four seconds. The light should then turn off
unless the parking brake is applied or a brake
fault is detected. If the light does not illumi-
nate, have the light inspected by an autho-
rized dealer.The light also will turn on when the parking
brake is applied with the ignition switch in
the ON/RUN position.
NOTE:
This light shows only that the parking brake is
applied. It does not show the degree of brake
application.
— Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays on
while the engine is running, there may be a
malfunction with the charging system. Con-
tact an authorized dealer as soon as possible.
This indicates a possible problem with the
electrical system or a related component.
— Door Open Warning Light
This indicator will illuminate when a door is
ajar/open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Electric Power Steering Fault
Warning Light
This warning light will turn on when there's a
fault with the EPS (Electric Power Steering)
system. Refer to “Power Steering” in “Start-
ing And Operating” in the Owner’s Manual for
further information.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
— Electronic Throttle Control (ETC)
Warning Light
This warning light will illuminate to indicate
a problem with the Electronic Throttle Con-
trol (ETC) system. If a problem is detected
while the vehicle is running, the light will
either stay on or flash depending on the
nature of the problem. Cycle the ignition
when the vehicle is safely and completely
stopped and the transmission is placed in the
PARK position. The light should turn off. If
GETTING TO KNOW YOUR INSTRUMENT PANEL
74

the AHRs have deployed. The head restraint
must be reset into the original position to best
protect the occupant for all types of colli-
sions. An authorized FCA dealer must reset
the AHRs on the driver’s and front passen-
ger’s seat before driving. Personally attempt-
ing to reset the AHRs may result in damage to
the AHRs that could impair their function.
WARNING!
Deployed AHRs are not able to best protect
you in all types of collisions. Have de-
ployed AHRs reset by an authorized dealer
immediately.
Supplemental Restraint Systems (SRS)
Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask an authorized
dealer.
The air bag system must be ready to protect
you in a collision. The Occupant Restraint
Controller (ORC) monitors the internal cir-
cuits and interconnecting wiring associatedwith the electrical Air Bag System Compo-
nents. Your vehicle may be equipped with the
following Air Bag System Components:
Air Bag System Components
• Occupant Restraint Controller (ORC)
• Air Bag Warning Light
• Steering Wheel and Column
• Instrument Panel
• Knee Impact Bolsters
• Driver and Front Passenger Air Bags
• Seat Belt Buckle Switch
• Supplemental Side Air Bags
• Supplemental Knee Air Bags
• Front and Side Impact Sensors
• Seat Belt Pretensioners
Air Bag Warning Light
The ORC monitors the readiness of the
electronic parts of the air bag system when-
ever the ignition switch is in the START orON/RUN position. If the ignition switch is in
the OFF position or in the ACC position, the
air bag system is not on and the air bags will
not inflate.
The ORC contains a backup power supply
system that may deploy the air bag system
even if the battery loses power or it becomes
disconnected prior to deployment.
The ORC turns on the Air Bag Warning Light
in the instrument panel for approximately
four to eight seconds for a self-check when
the ignition switch is first in the ON/RUN
position. After the self-check, the Air Bag
Warning Light will turn off. If the ORC detects
a malfunction in any part of the system, it
turns on the Air Bag Warning Light, either
momentarily or continuously. A single chime
will sound to alert you if the light comes on
again after initial startup.
The ORC also includes diagnostics that will
illuminate the instrument panel Air Bag
Warning Light if a malfunction is detected
that could affect the air bag system. The
diagnostics also record the nature of the
malfunction. While the air bag system is
117

Enhanced Accident Response System
In the event of an impact, if the communica-
tion network remains intact, and the power
remains intact, depending on the nature of
the event, the ORC will determine whether to
have the Enhanced Accident Response Sys-
tem perform the following functions:
• Cut off fuel to the engine (If Equipped)
• Cut off battery power to the electric motor
(If Equipped)
• Flash hazard lights as long as the battery
has power
• Turn on the interior lights, which remain on
as long as the battery has power or for 15
minutes from the intervention of the En-
hanced Accident Response System.
• Unlock the power door locks.
Your vehicle may also be designed to perform
any of these other functions in response to
the Enhanced Accident Response System:
• Turn off the Fuel Filter Heater, Turn off the
HVAC Blower Motor, Close the HVAC Circu-
lation Door• Cut off battery power to the:
– Engine
– Electric Motor (if equipped)
– Electric power steering
– Brake booster
– Electric park brake
– Automatic transmission gear selector
– Horn
– Front wiper
– Headlamp washer pump
NOTE:
After an accident, remember to cycle the
ignition to the STOP (OFF/LOCK) position
and remove the key from the ignition switch
to avoid draining the battery. Carefully check
the vehicle for fuel leaks in the engine com-
partment and on the ground near the engine
compartment and fuel tank before resetting
the system and starting the engine. If there
are no fuel leaks or damage to the vehicle
electrical devices (e.g. headlights) after an
accident, reset the system by following the
procedure described below. If you have any
doubt, contact an authorized dealer.
Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident Re-
sponse System functions after an event, the
ignition switch must be changed from igni-
tion START or ON/RUN to ignition OFF. Care-
fully check the vehicle for fuel leaks in the
engine compartment and on the ground near
the engine compartment and fuel tank before
resetting the system and starting the engine.
Maintaining Your Air Bag System
WARNING!
• Modifications to any part of the air bag
system could cause it to fail when you
need it. You could be injured if the air
bag system is not there to protect you.
Do not modify the components or wiring,
including adding any kind of badges or
stickers to the steering wheel hub trim
cover or the upper passenger side of the
instrument panel. Do not modify the
front bumper, vehicle body structure, or
add aftermarket side steps or running
boards.
125

CAUTION!
avoid engine damage. Refer to “Draining
Fuel/Water Separator Filter” in “Servicing
And Maintenance” in your Diesel Supple-
ment for further information, which can be
found with your online Owner’s Informa-
tion.
3. The system will automatically engage the
starter to crank the engine. If the vehicle
fails to start, the starter will disengage
automatically after 25 seconds.
4. If you wish to stop the cranking of the
engine prior to the engine starting, push
the button again.
5. Check that the oil pressure warning light
has turned off.
6. Release the parking brake.NOTE:
Only press one pedal at a time while driving
the vehicle. Torque performance of the ve-
hicle could be reduced if both pedals are
pressed at the same time. If pressure is
detected on both pedals simultaneously, a
warning message will display in the instru-
ment cluster. For further information, refer to
“Instrument Cluster Display” in “Getting To
Know Your Instrument Panel”.
STOP/START SYSTEM — IF
EQUIPPED
The Stop/Start function is developed to re-
duce fuel consumption. The system will stop
the engine automatically during a vehicle
stop if the required conditions are met. Re-
leasing the brake pedal or pressing the accel-
erator pedal will automatically re-start the
engine.
This vehicle has been upgraded with a heavy
duty starter, enhanced battery, and other up-
graded engine parts, to handle the additional
engine starts.
Automatic Mode
The Stop/Start feature is enabled
after every normal customer en-
gine start. At that time, the sys-
tem will go into STOP/START
READY and if all other conditions are met,
can go into a STOP/START AUTOSTOP AC-
TIVE “Autostop” mode.
To Activate The Autostop Mode, The Following
Must Occur:
• The system must be in STOP/START
READY state. A STOP/START READY mes-
sage will be displayed in the instrument
cluster display within the Stop/Start sec-
tion. Refer to “Instrument Cluster” in “Get-
ting To Know Your Instrument Panel” in
your Owner’s Manual for further informa-
tion.
• The vehicle must be completely stopped.
• The shifter must be in a forward gear and
the brake pedal depressed.
STARTING AND OPERATING
150