automatic transmission JEEP GRAND CHEROKEE 2020 Owner handbook (in English)

This wearing in occurs mainly during the first
500 miles (805 km) and continues through
the first oil change interval.
It is recommended for the operator to observe
the following driving behaviors during the
new vehicle break-in period:
0 to 100 miles (0 to 161 km):
• Do not allow the engine to operate at idle
for an extended period of time.
• Depress the accelerator pedal slowly and
not more than halfway to avoid rapid accel-
eration.
• Avoid aggressive braking.
• Drive with the engine speed less than
3,500 RPM.
• Maintain vehicle speed below 55 mph
(88 km/h) and observe local speed limits.
100 to 300 miles (161 to 483 km):
• Depress the accelerator pedal slowly and
not more than halfway to avoid rapid accel-
eration in lower gears (1st to 3rd gears).
• Avoid aggressive braking.• Drive with the engine speed less than
5,000 RPM.
• Maintain vehicle speed below 70 mph
(112 km/h) and observe local speed limits.
300 to 500 miles (483 to 805 km):
• Exercise the full engine rpm range, shifting
manually (paddles or gear shift) at higher
rpms when possible.
• Do not perform sustained operation with
the accelerator pedal at wide open throttle.
• Maintain vehicle speed below 85 mph
(136 km/h) and observe local speed limits.
For the first 1500 miles (2414 km):
• Do not participate in track events, sport
driving schools, or similar activities during
the first 1500 mi (2414 km).
NOTE:
Check engine oil with every refueling and add
if necessary. Oil and fuel consumption may
be higher through the first oil change inter-
val. Running the engine with an oil level
below the add mark can cause severe engine
damage.AUTOMATIC
TRANSMISSION
WARNING!
•Never use the PARK position as a substi-
tute for the parking brake. Always apply the
parking brake fully when exiting the ve-
hicle to guard against vehicle movement
and possible injury or damage.
•Your vehicle could move and injure you and
others if it is not in PARK. Check by trying
to move the transmission gear selector out
of PARK with the brake pedal released.
Make sure the transmission is in PARK
before exiting the vehicle.
•The transmission may not engage PARK if
the vehicle is moving. Always bring the
vehicle to a complete stop before shifting
to PARK, and verify that the transmission
gear position indicator solidly indicates
PARK (P) without blinking. Ensure that the
vehicle is completely stopped, and the
PARK position is properly indicated, before
exiting the vehicle.
STARTING AND OPERATING
154

mode. An onboard frequency generator cre-
ates counteracting sound waves through the
audio system to help keep the vehicle quiet.
Eight–Speed Automatic Transmission
Your vehicle is equipped with a fuel efficient
8 speed transmission. The gear selector is
located in the center console.
The transmission gear selector provides
PARK, REVERSE, NEUTRAL, DRIVE and
MANUAL or SPORT (AutoStick) shift posi-tions. Manual shifts can be made using the
AutoStick shift control. Toggling the gear se-
lector forward (-) or rearward (+) while in the
MANUAL or SPORT (AutoStick) position (be-
side the DRIVE position), or tapping the shift
paddles (+/-), will manually select the trans-
mission gear, and will display the current gear
in the instrument cluster. Refer to
"AutoStick" in this section for further infor-
mation.
NOTE:
If the gear selector cannot be moved to the
PARK, REVERSE, or NEUTRAL position
(when pushed forward), it is probably in the
AutoStick (+/-) position (beside the DRIVE
position). In AutoStick mode, the transmis-
sion gear (1, 2, 3, etc.) is displayed in the
instrument cluster. Move the gear selector to
the right (into the DRIVE [D] position) for
access to PARK, REVERSE, and NEUTRAL.
AutoStick
AutoStick is a driver-interactive transmission
feature providing manual shift control, giving
you more control of the vehicle. AutoStick
allows you to maximize engine braking, elimi-
nate undesirable upshifts and downshifts,and improve overall vehicle performance.
This system can also provide you with more
control during passing, city driving, cold slip-
pery conditions, mountain driving, trailer
towing, and many other situations.
Operation
To activate AutoStick mode, move the gear
selector into the MANUAL (M) or SPORT (S)
position (beside the DRIVE position), or tap
one of the shift paddles on the steering
wheel. Tapping the (-) shift paddle to enter
AutoStick mode will downshift the transmis-
sion to the next lower gear, while tapping (+)
to enter AutoStick mode will retain the cur-
rent gear. The current transmission gear will
be displayed in the instrument cluster. In
AutoStick mode, you can use the gear selec-
tor (in the MANUAL or SPORT position), orTransmission Gear Selector
Shift Paddles
157

the shift paddles, to manually shift the trans-
mission. Tapping the gear selector forward (-)
while in the MANUAL (M) or SPORT (S)
position, or tapping the (-) shift paddle, will
downshift the transmission to the next lower
gear. Tapping the selector rearward (+) (or
tapping the (+) shift paddle) will command
an upshift.
NOTE:
The shift paddles may be disabled (or re-
enabled, as desired) using the Uconnect Per-
sonal Settings or, in SRT models, using Drive
Modes.
In AutoStick mode, the transmission will
shift up or down when (+/-) is manually se-
lected by the driver (using the gear selector,
or the shift paddles), unless an engine lug-
ging or overspeed condition would result. It
will remain in the selected gear until another
upshift or downshift is chosen, except as
described below.
• The transmission will automatically down-
shift as the vehicle slows (to prevent engine
lugging) and will display the current gear.• The transmission will automatically down-
shift to first gear when coming to a stop.
After a stop, the driver should manually
upshift (+) the transmission as the vehicle
is accelerated.
• You can start out, from a stop, in first or
second gear (or third gear, in 4LO range,
Snow mode, or Sand mode). Tapping (+) (at
a stop) will allow starting in second gear.
Starting out in second or third gear can be
helpful in snowy or icy conditions.
• If a requested downshift would cause the
engine to over-speed, that shift will not
occur.
• The system will ignore attempts to upshift
at too low of a vehicle speed.
• Holding the (-) paddle depressed, or hold-
ing the gear selector in the (-) position, will
downshift the transmission to the lowest
gear possible at the current speed.
• Transmission shifting will be more notice-
able when AutoStick is enabled.
• The system may revert to automatic shift
mode if a fault or overheat condition is
detected.NOTE:
When Selec-Speed or Hill Descent Control is
enabled, AutoStick is not active.
To disengage AutoStick, return the gear se-
lector to the DRIVE position, or press and
hold the (+) shift paddle (if the gear selector
is already in DRIVE) until "D" is once again
indicated in the instrument cluster. You can
shift in or out of AutoStick at any time with-
out taking your foot off the accelerator pedal.
WARNING!
Do not downshift for additional engine
braking on a slippery surface. The drive
wheels could lose their grip and the ve-
hicle could skid, causing a collision or
personal injury.STARTING AND OPERATING
158

SPORT MODE — IF
EQUIPPED
Your vehicle is equipped with a Sport Mode
feature. This mode is a configuration set up
for typical enthusiast driving. The engine,
transmission, and steering systems are all set
to their SPORT settings. Sport Mode will
provide improved throttle response and modi-
fied shifting for an enhanced driving experi-
ence, as well the greatest amount of steeringfeel. This mode may be activated and deac-
tivated by pushing the Sport button on the
instrument panel switch bank.
FOUR WHEEL DRIVE
OPERATION
Quadra-Trac I Operating Instructions/
Precautions — If Equipped
The Quadra-Trac I is a single-speed (HI range
only) transfer case, which provides conve-
nient full-time four-wheel drive. No driver
interaction is required. The Brake Traction
Control (BTC) System, which combines stan-
dard ABS and Traction Control, provides re-
sistance to any wheel that is slipping to allow
additional torque transfer to wheels with trac-
tion.
NOTE:
The Quadra-Trac I system is not appropriate
for conditions where 4WD LOW range is rec-
ommended. Refer to “Off-Road Driving Tips”
in “Starting And Operating” in the Owner’s
Manual.
Quadra-Trac II Operating Instructions/
Precautions — If Equipped
The Quadra-Trac II transfer case is fully au-
tomatic in the normal driving 4WD AUTO
mode. The Quadra-Trac II transfer case pro-
vides three mode positions:
• 4WD HI
• NEUTRAL
• 4WD LOW
This transfer case is fully automatic in the
4WD HI mode.
When additional traction is required, the
4WD LOW position can be used to lock the
front and rear driveshafts together and force
the front and rear wheels to rotate at the same
speed. The 4WD LOW position is intended for
loose, slippery road surfaces only. Driving in
the 4WD LOW position on dry, hard-surfaced
roads may cause increased tire wear and
damage to driveline components.
Sport Mode Button
159

Automatic height changes will occur based
on vehicle speed and the current vehicle
height. The indicator lamps and instrument
cluster display messages will operate the
same for automatic changes and user re-
quested changes.
• Off-Road 2 (OR2) – Indicator lamps 4, 5,
and 6 will be illuminated when the vehicle
is in OR2.
• Off-Road 1 (OR1) – Indicator lamps 4 and
5 will be illuminated when the vehicle is in
OR1.
• Normal Ride Height (NRH) – Indicator
lamp 4 will be illuminated when the vehicle
is in this position.
• Entry/Exit Mode – Indicator lamp 3 will be
illuminated when the vehicle is in Entry/
Exit Mode. If Entry/Exit Mode is requested
while vehicle speed is between 15 mph
(24 km/h) and 25 mph (40 km/h), indicator
lamp 4 will remain on solid and indicator
lamp 3 will flash as the system waits for the
vehicle to reduce speed. If vehicle speed is
reduced to, and kept below, 15 mph
(24 km/h) indicator lamp 4 will turn off and
indicator lamp 3 will flash until Entry/ExitMode is achieved at which point indicator
lamp 3 will go solid. If during the height
change to Entry/Exit Mode, the vehicle
speed exceeds 15 mph (24 km/h), the
height change will be paused until the
vehicle speed either goes below 15 mph
(24 km/h) and the height change continues
to Entry/Exit Mode, or exceeds 25 mph
(40 km/h) and the vehicle height will return
to NRH. Entry/Exit Mode may be selected
while the vehicle is not moving provided
that the engine is still running and all doors
remain closed.
• Transport Mode - No indicator lamps will be
illuminated. Customer driving will disable
Transport Mode.
• Tire/Jack Mode - Indicator lamps 3 and
6 will be illuminated. Customer driving will
disable Tire/Jack Mode.
• Wheel Alignment Mode - Indicator lamps
3 and 4 will be illuminated. Customer driv-
ing will disable Wheel Alignment Mode.SELEC-TERRAIN — IF
EQUIPPED
Selec-Terrain Mode Selection
Selec-Terrain combines the capabilities of
the vehicle control systems, along with driver
input, to provide the best performance for all
terrains.
Selec-Terrain consists of the following posi-
tions:
•Snow– Tuning set for additional stability in
inclement weather. Use on and off road on
loose traction surfaces such as snow. When
in Snow mode (depending on certain oper-
ating conditions), the transmission may use
second gear (rather than first gear) during
Selec-Terrain Switch
167

Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
Selec-Track consists of the following posi-
tions:
•Sport– Dry weather, on-road calibration.
Performance based tuning that provides a
rear wheel drive feel but with improved
handling and acceleration over a two-wheel
drive vehicle. This feature will reset to
AUTO on an ignition cycle.
•Snow– Tuning set for additional stability in
inclement weather. Use on and off road on
loose traction surfaces such as snow. This
feature will reset to AUTO upon an ignition
cycle.
•Auto– Fully automatic full time four-wheel
drive operation can be used on and off road.
Balances traction with seamless steering
feel to provide improved handling and ac-
celeration over two-wheel drive vehicles.•Track– Track road calibration for use on
high traction surfaces. Driveline is maxi-
mized for traction. Some binding may be
felt on less forgiving surfaces. This feature
will reset to AUTO on an ignition cycle.
•To w– Use this mode for towing and hauling
heavy loads. Vehicle suspension will go to
sport mode. Trailer sway control is enabled
in the ESC system. This feature will reset to
AUTO upon an ignition cycle.
Custom
This mode allows the driver to create a cus-
tom vehicle configuration that is saved for
quick selection of favorite settings. The sys-
tem will return to AUTO mode when the
ignition switch is cycled from RUN to OFF to
RUN, if this mode is selected. While in Cus-
tom Mode the Stability, Transmission, Steer-
ing, Suspension, all-wheel drive set up, and
Paddle shifter settings may be configured
through the custom mode set-up.
NOTE:
Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
Active Damping System
This vehicle is equipped with an electronic
controlled damping system. This system re-
duces body roll and pitch in many driving
situations including cornering, acceleration
and braking. There are 3 modes:
•Street Mode(Available in terrain positions
AUTO, SNOW and CUSTOM.) — Used dur-
ing highway speeds where a touring sus-
pension feel is desired.
•Sport Mode(Available in terrain positions
AUTO, SPORT, CUSTOM and TOW.) — Pro-
vides a firm suspension for better handling.
•Track Mode(Available in terrain positions
AUTO, TRACK and CUSTOM.) — Provides
a full firm suspension for an aggressive
track experience.
Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
169

downhill. This is normal operation and nec-
essary to maintain set speed. When driving
up hill and down hill, the ACC system will
cancel if the braking temperature exceeds
normal range (overheated).
Setting The Following Distance In ACC
The specified following distance for ACC can
be set by varying the distance setting be-
tween four bars (longest), three bars (long),
two bars (medium) and one bar (short). Using
this distance setting and the vehicle speed,
ACC calculates and sets the distance to the
vehicle ahead. This distance setting displays
in the instrument cluster display.
To increase the distance setting, push the
Distance Setting — Increase button and re-
lease. Each time the button is pushed, the
distance setting increases by one bar (lon-
ger).
To decrease the distance setting, push the
Distance Setting — Decrease button and re-
lease. Each time the button is pushed, the
distance setting decreases by one bar
(shorter).
PARKSENSE REAR PARK
ASSIST — IF EQUIPPED
The ParkSense Rear Park Assist system pro-
vides visual and audible indications of the
distance between the rear fascia and a de-
tected obstacle when backing up, e.g. during
a parking maneuver. If your vehicle is
equipped with an automatic transmission,
the vehicle brakes may be automatically ap-
plied and released when performing a reverse
parking maneuver if the system detects a
possible collision with an obstacle.
Refer to “ParkSense System Usage Precau-
tions” in this section for limitations of this
system and recommendations.
ParkSense will retain the last system state
(enabled or disabled) from the last ignition
cycle when the ignition is changed to the
ON/RUN position.
ParkSense Sensors
The four ParkSense sensors, located in the
rear fascia/bumper, monitor the area behind
the vehicle that is within the sensors’ field of
view. The sensors can detect obstacles from
approximately 12 inches (30 cm) up to
79 inches (200 cm) from the rear fascia/
bumper in the horizontal direction, depend-
ing on the location, type and orientation of
the obstacle.
ParkSense Warning Display
The ParkSense Warning screen will only be
displayed if Sound and Display is selected
from the Customer - Programmable Features
section of the Uconnect System.
Refer to "Uconnect Settings” in “Multime-
dia” in your Owner’s Manual for further infor-
mation.
The ParkSense Warning screen is located
within the instrument cluster display. It pro-
vides visual warnings to indicate the distance
between the rear fascia/bumper and the de-
tected obstacle.
177

WARNING!
• Drivers must be careful when backing up
even when using ParkSense. Always
check carefully behind your vehicle, look
behind you, and be sure to check for
pedestrians, animals, other vehicles, ob-
structions, and blind spots before back-
ing up. You are responsible for safety
and must continue to pay attention to
your surroundings. Failure to do so can
result in serious injury or death.
• Before using ParkSense, it is strongly
recommended that the ball mount and
hitch ball assembly is disconnected
from the vehicle when the vehicle is not
used for towing. Failure to do so can
result in injury or damage to vehicles or
obstacles because the hitch ball will be
much closer to the obstacle than the rear
fascia when the loudspeaker sounds the
continuous tone. Also, the sensors could
detect the ball mount and hitch ball
assembly, depending on its size and
shape, giving a false indication that an
obstacle is behind the vehicle.
CAUTION!
• ParkSense is only a parking aid and it is
unable to recognize every obstacle, in-
cluding small obstacles. Parking curbs
might be temporarily detected or not
detected at all. Obstacles located above
or below the sensors will not be detected
when they are in close proximity.
• The vehicle must be driven slowly when
using ParkSense in order to be able to
stop in time when an obstacle is de-
tected. It is recommended that the
driver looks over his/her shoulder when
using ParkSense.
PARKSENSE FRONT AND
REAR PARK ASSIST — IF
EQUIPPED
The ParkSense Park Assist system provides
visual and audible indications of the distance
between the rear and/or front fascia and a
detected obstacle when backing up or moving
forward, e.g. during a parking maneuver. If
your vehicle is equipped with an automatictransmission, the vehicle brakes may be au-
tomatically applied and released when per-
forming a reverse parking maneuver if the
system detects a possible collision with an
obstacle.
Refer to “ParkSense System Usage Precau-
tions” in “Starting And Operating” in your
Owner’s Manual for limitations of this system
and recommendations.
ParkSense will retain the last system state
(enabled or disabled) from the last ignition
cycle when the ignition is changed to the
ON/RUN position.
ParkSense Sensors
The four ParkSense sensors (or six, if
equipped with Active Park Assist), located in
the rear fascia/bumper, monitor the area be-
hind the vehicle that is within the sensors’
field of view. The sensors can detect ob-
stacles from approximately 12 inches
(30 cm) up to 79 inches (200 cm) from the
rear fascia/bumper in the horizontal direc-
tion, depending on the location, type and
orientation of the obstacle.
179

Trailer Towing Weights (Maximum Trailer
Weight Ratings) — SRT
The following chart provides the maximum
trailer weight ratings towable for your given
drivetrain.
Engine/Transmission GCWR (Gross Combined
Wt. Rating)Frontal Area Max. GTW (Gross Trailer
Wt.)Max. Trailer Tongue Wt.
(See Note)
6.2L Supercharged Automatic 13,099 lbs (5,942 kg) 55 sq ft (5.11 sq m) 6,500 lbs (2,949 kg) 324 lbs (147 kg)
6.4L Automatic 13,002 lbs (5,898 kg) 55 sq ft (5.11 sq m) 6,500 lbs (2,949 kg) 324 lbs (147 kg)
When towing a trailer the technically permissible laden weight may be exceeded by not more than 10% or 220 lbs (100 kg), whichever is lower
provided that the operating speed is restricted to 62 mph (100 km/h) or less.
Refer to local laws for maximum trailer towing speeds.
NOTE:
The trailer tongue weight must be considered
as part of the combined weight of occupants
and cargo, and should never exceed the
weight referenced on the Tire and Loading
Information placard.Trailer Hitch Receiver Cover Removal
(Summit Models) — If Equipped
Your vehicle may be equipped with a trailer
hitch receiver cover, this must be removed to
access the trailer hitch receiver (if equipped).
This hitch receiver cover is located at the
bottom center of the rear fascia.1. Turn the two locking retainers located at
the bottom of the hitch receiver cover a
1/4 turn counterclockwise.
NOTE:
Use a suitable tool such as a coin in the
slot of the locking retainer if needed for
added leverage.
STARTING AND OPERATING
194

Preparations For Jacking
CAUTION!
Always lift or jack the vehicle from the
correct jacking points. Failure to follow
this information could cause damage to
the vehicle or underbody components.
NOTE:
To assist with changing a spare tire, the air
suspension system (if equipped) has a fea-
ture which allows the automatic leveling to
be disabled.
1. Park the vehicle on a firm, level surface.
Avoid ice or slippery surfaces.
WARNING!
Do not attempt to change a tire on the side
of the vehicle close to moving traffic. Pull
far enough off the road to avoid being hit
when operating the jack or changing the
wheel.
2. Turn on the Hazard Warning flasher.
3. Apply the parking brake.4. Place the gear selector into PARK.
5. Turn the ignition OFF.
6. Block both the front and rear of the wheel
diagonally opposite of the jacking posi-
tion. For example, if changing the right
front tire, block the left rear wheel.
NOTE:
Passengers should not remain in the ve-
hicle when the vehicle is being jacked.7. For vehicles equipped with Quadra-Lift,
refer to “Quadra-Lift — If Equipped” in
“Starting And Operating” in the Owner’s
Manual for further information on dis-
abling automatic leveling.
Jacking Instructions
WARNING!
Carefully follow these tire changing warn-
ings to help prevent personal injury or
damage to your vehicle:
• Always park on a firm, level surface as
far from the edge of the roadway as
possible before raising the vehicle.
• Turn on the Hazard Warning flasher.
• Block the wheel diagonally opposite the
wheel to be raised.
• Apply the parking brake firmly and set
the transmission in PARK.
• Never start or run the engine with the
vehicle on a jack.
• Do not let anyone sit in the vehicle when
it is on a jack.
• Do not get under the vehicle when it is
on a jack. If you need to get under a
Wheel Blocked
IN CASE OF EMERGENCY
218