ECU JEEP GRAND CHEROKEE 2021 Owner handbook (in English)

NOTE:
If “Unlock All Doors 1st Press” is pro-
grammed all doors will unlock when you grab
hold of the front driver’s door handle. To
select between “Unlock Driver Door 1st
Push” and “Unlock All Doors 1st Press,”
refer to “Uconnect Settings” in “Multime-
dia” in the Owner’s Manual for further infor-
mation.
To Unlock From The Passenger Side
With a valid Passive Entry key fob within 5 ft
(1.5 m) of the passenger door handle, grab
the front passenger door handle to unlock all
four doors and the liftgate automatically.
NOTE:
All doors will unlock when the front passen-
ger door handle is grabbed regardless of the
driver’s door unlock preference setting (“Un-
lock Driver Door 1st Press” or “Unlock All
Doors 1st Press”).Preventing Inadvertent Locking Of Passive Entry
Key Fob In Vehicle (FOBIK-Safe)
To minimize the possibility of unintentionally
locking a Passive Entry key fob inside your
vehicle, the Passive Entry system is equipped
with an automatic door unlock feature which
will function if the ignition switch is in the
OFF position.
FOBIK-Safe only executes in vehicles with
passive entry. There are five situations that
trigger a FOBIK-Safe search in any passive
entry vehicle:
• A lock request is made by a valid Passive
Entry key fob while a door is open.
• A lock request is made by the Passive Entry
door handle while a door is open.
• A lock request is made by the door panel
switch while the door is open.
• When the vehicle security alarm is in pre-
arm or armed status and the liftgate transi-
tions from open to closed.
• When the liftgate transitions from opened
to closed and remote start is active.When any of these situations occur, after all
open doors are shut, the FOBIK-Safe search
will be executed. If it finds a Passive Entry
key fob inside the car, the car will unlock and
alert the customer.
NOTE:
The vehicle will only unlock the doors when a
valid Passive Entry key fob is detected inside
the vehicle. The vehicle will not unlock the
doors when any of the following conditions
are true:
• The doors are manually locked using the
door lock knobs.
• Three attempts are made to lock the doors
using the door panel switch and then close
the doors.
• There is a valid Passive Entry key fob out-
side the vehicle within 5 ft. (1.5 m) of a
Passive Entry door handle.
To Lock The Vehicle’s Doors And Liftgate
With one of the vehicle’s Passive Entry key
fob within 5 ft (1.5 m) of the driver or
passenger front door handles, pushing the
passive entry lock button will lock the
vehicle.
GETTING TO KNOW YOUR VEHICLE
22

NOTE:
For proper routing of a Child Seat Tether, refer
to “Occupant Restraint Systems” in “Safety”
for further information.
WARNING!
• A loose head restraint thrown forward in
a collision or hard stop could cause se-
rious injury or death to occupants of the
vehicle. Always securely stow removed
head restraints in a location outside the
occupant compartment.
• ALL the head restraints MUST be rein-
stalled in the vehicle to properly protect
the occupants. Follow the re-installation
instructions above prior to operating the
vehicle or occupying a seat.
STEERING WHEEL
Manual Tilt/Telescoping Steering Column
— If Equipped
This feature allows you to tilt the steering
column upward or downward. It also allows
you to lengthen or shorten the steering col-
umn. The tilt/telescoping lever is located be-
low the steering wheel at the end of the
steering column.To unlock the steering column, push the lever
downward (toward the floor). To tilt the steer-
ing column, move the steering wheel upward
or downward as desired. To lengthen or
shorten the steering column, pull the steering
wheel outward or push it inward as desired.
To lock the steering column in position, push
the lever upward until fully engaged.
Center Head Restraint Release ButtonManual Tilt/Telescoping Steering Column
Handle
33

the buffeting occurs with the sunroof open,
adjust the sunroof opening to minimize the
buffeting or open any window.
POWER SUNROOF — IF
EQUIPPED
The power sunroof switch is located between
the sun visors on the overhead console.
WARNING!
• Never leave children unattended in a
vehicle, or with access to an unlocked
vehicle. Never leave the key fob in or
near the vehicle, or in a location acces-
sible to children. Do not leave the igni-
tion of a vehicle equipped with Keyless
Enter-N-Go in the ACC or ON/RUN
mode. Occupants, particularly unat-
tended children, can become entrapped
by the power sunroof while operating the
power sunroof switch. Such entrapment
may result in serious injury or death.
• In a collision, there is a greater risk of
being thrown from a vehicle with an
open sunroof. You could also be seri-
ously injured or killed. Always fasten
your seat belt properly and make sure all
passengers are also properly secured.
• Do not allow small children to operate
the sunroof. Never allow your fingers,
other body parts, or any object, to proj-
ect through the sunroof opening. Injury
may result.
Opening Sunroof
Express
Push the switch rearward and release it
within one-half second and the sunroof will
open automatically from any position. The
sunroof will open fully and stop automati-
cally. This is called “Express Open”. During
Express Open operation, any other actuation
of the sunroof switch will stop the sunroof.
Manual
To open the sunroof, push and hold the
switch rearward to full open. Any release of
the switch will stop the movement. The sun-
roof and sunshade will remain in a partially
opened condition until the sunroof switch is
pushed again.
Closing Sunroof
Express
Push the switch forward and release it within
one-half second and the sunroof will close
automatically from any position. The sunroofPower Sunroof Switch
1 — Opening Sunroof
2 — Venting Sunroof
3 — Closing Sunroof
GETTING TO KNOW YOUR VEHICLE
54

will close fully and stop automatically. This is
called “Express Close”. During Express Close
operation, any other actuation of the switch
will stop the sunroof.
Manual
To close the sunroof, push and hold the
switch in the forward position. Any release of
the switch will stop the movement and the
sunroof will remain in a partially closed con-
dition until the sunroof switch is pushed
again.
Sunshade Operation
The sunshade can be opened manually. How-
ever, the sunshade will open automatically as
the sunroof opens.
NOTE:
The sunshade cannot be closed if the sunroof
is open.
Pinch Protect Feature
This feature will detect an obstruction in the
closing of the sunroof during the Express
Close operation. If an obstruction in the path
of the sunroof is detected, the sunroof will
automatically retract. Remove the obstruc-
tion if this occurs.
NOTE:
If three consecutive sunroof close attempts
result in Pinch Protect reversals, Pinch Pro-
tect will disable and the sunroof must be
closed in Manual Mode.
Venting Sunroof — Express
Push and release the Vent button within one
half second and the sunroof will open to the
vent position. This is called “Express Vent”
and it will occur regardless of sunroof posi-
tion. During Express Vent operation, any
movement of the switch will stop the sunroof.
Sunroof Maintenance
Use only a non-abrasive cleaner and a soft
cloth to clean the glass panel.
Relearn Procedure
For vehicles equipped with a single-pane
sunroof, there is a relearn procedure that
allows you to reset the sunroof when the
“Express Open” feature stops working. To
reset the sunroof, follow these steps:
1. Set the ignition to the ACC or ON/RUN
position.
2. Make sure that the sunroof is fully closed.
3. Push sunroof switch forward and hold.
The sunroof will close fully then move to
the Vent position after 10 seconds.
4. Release the sunroof switch, then push
forward and hold the switch again within
5 seconds to begin the relearn process.
The sunroof will complete one full cycle
and return to the Fully Closed position.
NOTE:
If the sunroof switch is released anytime
during the relearn cycle, the procedure
will need to be repeated starting from the
first step.
55

5. Once the sunroof has stopped in the Fully
Closed position, release the sunroof
switch. The sunroof is now reset and ready
to use.
COMMANDVIEW SUNROOF
WITH POWER SHADE — IF
EQUIPPED
The CommandView sunroof switch is located
to the left between the sun visors on the
overhead console.
The power shade switch is located to the right
between the sun visors on the overhead
console.
WARNING!
• Never leave children unattended in a
vehicle, or with access to an unlocked
vehicle. Never leave the key fob in or
near the vehicle, or in a location acces-
WARNING!
sible to children. Do not leave the igni-
tion of a vehicle equipped with Keyless
Enter-N-Go in the ACC or ON/RUN
mode. Occupants, particularly unat-
tended children, can become entrapped
by the power sunroof while operating the
power sunroof switch. Such entrapment
may result in serious injury or death.
• In a collision, there is a greater risk of
being thrown from a vehicle with an
open sunroof. You could also be seri-
ously injured or killed. Always fasten
your seat belt properly and make sure all
passengers are also properly secured.
• Do not allow small children to operate
the sunroof. Never allow your fingers,
other body parts, or any object, to proj-
ect through the sunroof opening. Injury
may result.
Commandview Sunroof Switches
1 — Opening Sunroof
2 — Venting Sunroof
3 — Closing Sunroof
4 — Opening Shade
5 — Closing Shade
GETTING TO KNOW YOUR VEHICLE
56

shade will open to the full open position.
Releasing the switch while the sunshade is in
motion will stop the sunshade in a partially
open position.
Closing Power Shade
If the sunroof is open or vented, the sunshade
cannot be closed beyond the half open posi-
tion. Pushing the sunshade close switch
when the sunroof is open/vented and the
sunshade is at half open position will first
automatically close the sunroof prior to the
sunshade closing.
Express Close
Push the sunshade switch forward and re-
lease it within one-half second and the sun-
shade will close automatically. During Ex-
press Close operation, any other actuation of
the sunroof switches will stop the sunshade
in a partially open position.Manual Close
Push and hold the switch forward and the
sunshade will close and stop at full closed
position. Releasing the switch while the sun-
shade is in motion will stop the sunshade in a
partially open position.
Pinch Protect Feature
This feature will detect an obstruction in the
opening of the sunroof during Express Close
operation. If an obstruction in the path of the
sunroof is detected, the sunroof will auto-
matically retract. Remove the obstruction if
this occurs.
NOTE:
If three consecutive sunroof close attempts
result in Pinch Protect reversals, Pinch Pro-
tect will disable and the sunroof must be
closed in Manual Mode.
Venting Sunroof — Express
Push and release the "Vent" button within
one-half second and the sunroof will open to
the vent position. This is called “Express
Vent”, and it will occur regardless of sunroof
position. During Express Vent operation, any
movement of the switch will stop the sunroof.
NOTE:
If the sunshade is in the closed position when
the vent switch is pushed, the sunshade will
automatically cycle to the halfway open posi-
tion prior to the sunroof opening to the Vent
position.
Sunroof Maintenance
Use only a non-abrasive cleaner and a soft
cloth to clean the glass panel.
GETTING TO KNOW YOUR VEHICLE
58

allel to the rack frame. Once the crossbar is in
the desired position, retighten the with the
wrench to lock the crossbar into position.
NOTE:
• To help control wind noise when the cross-
bars are not in use, place the front and rear
crossbars approximately 24 inches (61 cm)
apart. Optimal noise reduction can then be
achieved by adjusting the front crossbar
forward or aft using increments of 1 inch
(2.5 cm).
• If any cargo (or any metallic object) is
placed over the satellite radio antenna (if
equipped), you may experience interrup-
tion of satellite radio reception. For im-
proved satellite radio reception, avoid plac-
ing the rear crossbar over the satellite radio
antenna.
WARNING!
Cargo must be securely tied down before
driving your vehicle. Improperly secured
loads can fly off the vehicle, particularly at
WARNING!
high speeds, resulting in personal injury or
property damage. Follow the roof rack cau-
tions when carrying cargo on your roof
rack.
CAUTION!
• To prevent damage to the roof of your
vehicle, do not carry any loads on the
roof rack without the crossbars installed.
The load should be secured and placed
on top of the crossbars, not directly on
the roof. If it is necessary to place the
load on the roof, place a blanket or some
other protection between the load and
the roof surface.
• To avoid damage to the roof rack and
vehicle, do not exceed the maximum
roof rack load capacity of 150 lb (68 kg).
Always distribute heavy loads as evenly
as possible and secure the load
appropriately.
CAUTION!
• Long loads which extend over the wind-
shield, such as wood panels or surf-
boards, or loads with large frontal area
should be secured to both the front and
rear of the vehicle.
• Place a blanket or other protection be-
tween the surface of the roof and the
load.
• Travel at reduced speeds and turn cor-
ners carefully when carrying large or
heavy loads on the roof rack. Wind
forces, due to natural causes or nearby
truck traffic, can add sudden upward lift
to a load. This is especially true on large
flat loads and may result in damage to
the cargo or your vehicle.
• The use of Sport Mode is not recom-
mended when using the Roof Luggage
Rack to carry a load.
65

ACC/ON/RUN position and if the driver’s seat
belt is unbuckled, a chime will sound and the
light will turn on. When driving, if the driver
or front passenger seat belt remains unbuck-
led, the Seat Belt Reminder Light will flash or
remain on continuously and a chime will
sound.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Transmission Temperature Warning
Light — If Equipped
This warning light will illuminate to warn of a
high transmission fluid temperature. This
may occur with strenuous usage such as
trailer towing. If this light turns on, stop the
vehicle and run the engine at idle or slightly
faster, with the transmission in PARK or
NEUTRAL, until the light turns off. Once the
light turns off, you may continue to drive
normally.
WARNING!
If you continue operating the vehicle when
the Transmission Temperature Warning
Light is illuminated you could cause the
fluid to boil over, come in contact with hot
engine or exhaust components and cause
a fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated
will eventually cause severe transmission
damage or transmission failure.
— Vehicle Security Warning Light — If
Equipped
This light will flash at a fast rate for approxi-
mately 15 seconds when the vehicle security
alarm is arming, and then will flash slowly
until the vehicle is disarmed.
Yellow Warning Lights
— Service Adaptive Cruise Control
Warning Light
This light will turn on when the ACC system is
not operating and needs service. For further
information, refer to “Adaptive Cruise Control
(ACC)” in “Starting And Operating.”
— Anti-Lock Brake (ABS) Warning
Light
This warning light monitors the Anti-Lock
Brake System (ABS). The light will turn on
when the ignition is placed in the ON/RUN or
ACC/ON/RUN position and may stay on for as
long as four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the
brake system is not functioning and service is
required as soon as possible. However, the
conventional brake system will continue to
operate normally, assuming the Brake Warn-
ing Light is not also on.
GETTING TO KNOW YOUR INSTRUMENT PANEL
76

ONBOARD DIAGNOSTIC
SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II.
This system monitors the performance of the
emissions, engine, and transmission control
systems. When these systems are operating
properly, your vehicle will provide excellent
performance and fuel economy, as well as
engine emissions well within current govern-
ment regulations.
If any of these systems require service, the
OBD II system will turn on the Malfunction
Indicator Light (MIL). It will also store diag-
nostic codes and other information to assist
your service technician in making repairs.
Although your vehicle will usually be drivable
and not need towing, see an authorized
dealer for service as soon as possible.
CAUTION!
• Prolonged driving with the MIL on could
cause further damage to the emission
control system. It could also affect fuel
economy and driveability. The vehicle
must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the vehicle is
running, severe catalytic converter dam-
age and power loss will soon occur. Im-
mediate service is required.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (OBD II) and a connection
port to allow access to information related to
the performance of your emissions controls.
Authorized service technicians may need to
access this information to assist with the
diagnosis and service of your vehicle and
emissions system.
WARNING!
• ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to read the VIN,
diagnose, or service your vehicle.
• If unauthorized equipment is connected
to the OBD II connection port, such as a
driver-behavior tracking device, it may:
• Be possible that vehicle systems,
including safety related systems,
could be impaired or a loss of ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
• Access, or allow others to access,
information stored in your vehicle
systems, including personal infor-
mation.
For further information, refer to “Cybersecu-
rity” in “Multimedia”.
85

2. A child who is not big enough to wear the
vehicle seat belt properly (Refer to “Child
Restraints” in this section for further in-
formation) must be secured in the appro-
priate child restraint or belt-positioning
booster seat in a rear seating position.
3. If a child from 2 to 12 years old (not in a
rear-facing child restraint) must ride in
the front passenger seat, move the seat asfar back as possible and use the proper
child restraint (Refer to “Child Re-
straints” in this section for further
information).
4. Never allow children to slide the shoulder
belt behind them or under their arm.
5. You should read the instructions provided
with your child restraint to make sure that
you are using it properly.
6. All occupants should always wear their lap
and shoulder belts properly.
7. The driver and front passenger seats
should be moved back as far as practical
to allow the front air bags room to inflate.
8. Do not lean against the door or window. If
your vehicle has side air bags, and deploy-
ment occurs, the side air bags will inflate
forcefully into the space between occu-
pants and the door and occupants could
be injured.
9. If the air bag system in this vehicle needs
to be modified to accommodate a dis-
abled person, refer to the “Customer As-
sistance” section for customer service
contact information.
WARNING!
• NEVER use a rearward facing child re-
straint on a seat protected by an ACTIVE
AIRBAG in front of it, DEATH or SERI-
OUS INJURY to the CHILD can occur.
• Never install a rear-facing child restraint
in the front seat of a vehicle. Only use a
rear-facing child restraint in the rear
seat. If the vehicle does not have a rear
seat, do not transport a rear-facing child
restraint in that vehicle.
• A deploying passenger front air bag can
cause death or serious injury to a child
12 years or younger, including a child in
a rear-facing child restraint.
Seat Belt Systems
Buckle up even though you are an excellent
driver, even on short trips. Someone on the
road may be a poor driver and could cause a
collision that includes you. This can happen
far away from home or on your own street.
Research has shown that seat belts save
lives, and they can reduce the seriousness of
injuries in a collision. Some of the worst
Warning Label On Front Passenger Sun
Visor
SAFETY
108