2023 JEEP GRAND CHEROKEE clutch

STARTING AND OPERATING129
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. Apply
the parking brake and shift the transmission into
PARK (P) if you must exit the vehicle.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest upshifts
and downshifts, and the best fuel economy. The
transmission automatically upshifts through all
forward gears. When frequent transmission shifting occurs (such
as when operating the vehicle under heavy loading
conditions, in hilly terrain, traveling into strong
head winds, or while towing a heavy trailer), use
the AutoStick shift control to select a lower gear
Ú
page 130. Under these conditions, using a lower
gear will improve performance and extend
transmission life by reducing excessive shifting
and heat buildup.
During cold temperatures, transmission operation
may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm-up time of the
engine and transmission to achieve maximum
efficiency. Engagement of the torque converter
clutch is inhibited until the transmission fluid is
warm. Normal operation will resume once the
transmission temperature has risen to a suitable
level.
Transmission Limp Home Mode
Transmission function is monitored electronically
for abnormal conditions. If a condition is detected
that could result in transmission damage,
Transmission Limp Home Mode is activated. In this
mode, the transmission may operate only in
certain gears, or may not shift at all. Vehicle
performance may be severely degraded and the
engine may stall. In some situations, the
transmission may not re-engage if the engine is
turned off and restarted. The Malfunction Indicator Light (MIL) may be illuminated. A message in the
instrument cluster will inform the driver of the
more serious conditions, and indicate what actions
may be necessary.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
NOTE:In cases where the instrument cluster message
indicates the transmission may not re-engage after
engine shutdown, perform this procedure only in a
desired location (preferably, at an authorized
dealer).

1. Stop the vehicle.

2. Shift the transmission into PARK (P), if
possible. If not, shift the transmission to
NEUTRAL (N).
3. Push and hold the ignition switch until the engine turns off.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no longer detected, the
transmission will return to normal operation.
WARNING!
Do not coast in NEUTRAL and never turn off the
ignition to coast down a hill. These are unsafe
practices that limit your response to changing
traffic or road conditions. You might lose control
of the vehicle and have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any
other reason with the transmission in NEUTRAL
can cause severe transmission damage.
For Recreational Towing see Ú page 195.
For Towing A Disabled Vehicle see Ú page 326.
4

23_WL_OM_EN_USC_t.book Page 129

STARTING AND OPERATING133
4WD LOW To 4WD HI

With the vehicle at speeds of 0 to 3 mph (0 to
5 km/h), the ignition switch in the ON position or
the engine running, shift the transmission into
NEUTRAL (N), push and hold the 4WD LOW button
until the 4WD LOW Indicator Light begins to flash
in the instrument cluster. When the shift is
complete, the 4WD LOW Indicator Light will
remain off.

NOTE:
If shift conditions/interlocks are not met —
“4WD Shift Cancelled” or “4WD Shift Aborted/
Retry Shift” message will be displayed on the
instrument cluster. To reattempt shift, put the
transmission in NEUTRAL (N) and push and hold
the 4WD LOW button.
If shift conditions/interlocks are not met, a “To
Complete 4WD Shift Put Transmission In
Neutral” or a “To Complete 4WD Shift Speed
Must Be Below 3 MPH” or a “To Complete 4WD
Shift Allow Engine To Return To Idle” message
will flash from the instrument cluster display
Úpage 98.

Shifting into or out of 4WD LOW is possible with
the vehicle completely stopped; however, diffi -
culty may occur due to the mating clutch teeth
not being properly aligned. Several attempts
may be required for clutch teeth alignment and shift completion to occur. The preferred
method is with the vehicle rolling 0 to 3 mph
(0 to 5 km/h). If the vehicle is moving faster
than 3 mph (5 km/h), the transfer case will not
allow the shift.

QUADRA-TRAC II SYSTEM —
I
F EQUIPPED
The Quadra-Trac II System features two torque
transfer couplings. The couplings include an
Electronic Limited-Slip Differential (ELSD) rear axle
and the Quadra-Trac II transfer case. The ELSD
axle is fully automatic and requires no driver input
to operate. Under normal driving conditions, the
unit functions as a standard axle, balancing torque
evenly between left and right wheels. With a
traction difference between left and right wheels,
the coupling will sense a speed difference. As one
wheel begins to spin faster than the other, torque
will automatically transfer from the wheel that has
less traction, to the wheel that has traction. While
the transfer case and axle coupling differ in design,
their operation is similar. Follow the Quadra-Trac II
transfer case shifting information, preceding this
section, for shifting this system.
ELECTRONIC SWAY BAR DISCONNECT —
I
F EQUIPPED
Your vehicle may be equipped with an electronic
disconnecting stabilizer/sway bar. This system
allows greater front suspension travel in off-road
situations.
This system is controlled by the SWAY BAR switch
located on the instrument panel (to the right of the
gear selector).

SWAY BAR Switch

4

23_WL_OM_EN_USC_t.book Page 133

254SAFETY
Driver Override
The driver may override HDC activation with
throttle or brake application at any time.
Deactivating HDC
HDC will be deactivated but remain available if any
of the following conditions occur:
The driver overrides HDC set speed with throttle
or brake application.
The vehicle speed exceeds 20 mph (32 km/h)
but remains below 40 mph (64 km/h).
The vehicle is on a downhill grade of insufficient
magnitude, is on level ground, or is on an uphill
grade.
The vehicle is shifted to PARK.
Disabling HDC
HDC will be deactivated and disabled if any of the
following conditions occur:
The driver pushes the HDC switch.
The driveline is shifted out of 4WD Low.
The parking brake is applied.
The driver door opens.
The vehicle is driven greater than 20 mph
(32 km/h) for greater than 70 seconds.
The vehicle is driven greater than 40 mph
(64 km/h) (HDC exits immediately).
HDC detects excessive brake temperature. Feedback To The Driver
The instrument cluster has an HDC icon and the
HDC switch has an LED icon, which offers feedback
to the driver about the state HDC is in.
The cluster icon and switch light will illuminate
and remain on solid when HDC is enabled or
activated. This is the normal operating condition
for HDC.
The cluster icon and switch light will flash for
several seconds, then extinguish when the
driver pushes the HDC switch but enable condi
-
tions are not met.
The cluster icon and switch light will flash for
several seconds, then extinguish when HDC
disables due to excess speed.
The cluster icon and switch light will flash when
HDC deactivates due to overheated brakes. The
flashing will stop and HDC will activate again
once the brakes have cooled sufficiently.
Hill Start Assist (HSA)
HSA is designed to mitigate roll back from a
complete stop while on an incline. If the driver
releases the brake while stopped on an incline,
HSA will continue to hold the brake pressure for a
short period. If the driver does not apply the
throttle before this time expires, the system will
release brake pressure and the vehicle will roll
down the hill as normal.
The following conditions must be met in order for
HSA to activate:
The feature must be enabled.
The vehicle must be stopped.
The parking brake must be off.
The driver door must be closed.
The vehicle must be on a sufficient grade.
The gear selection must match vehicle uphill
direction (i.e., vehicle facing uphill is in forward
gear; vehicle backing uphill is in REVERSE (R)
gear).
HSA will work in REVERSE gear and all forward
gears. The system will not activate if the trans -
mission is in PARK (P) or NEUTRAL (N). For vehi -
cles equipped with a manual transmission, if
the clutch is pressed, HSA will remain active.
WARNING!
HDC is only intended to assist the driver in
controlling vehicle speed when descending hills.
The driver must remain attentive to the driving
conditions and is responsible for maintaining a
safe vehicle speed.

23_WL_OM_EN_USC_t.book Page 254

304SAFETY
(Continued)
(Continued)
(Continued)
Defroster
Check operation by selecting the defrost mode and
place the blower control on high speed. You should
be able to feel the air directed against the
windshield. See an authorized dealer for service if
your defroster is inoperable.
Floor Mat Safety Information
Always use floor mats designed to fit your vehicle.
Only use a floor mat that does not interfere with the
operation of the accelerator, brake or clutch
pedals. Only use a floor mat that is securely
attached using the floor mat fasteners so it cannot
slip out of position and interfere with the
accelerator, brake or clutch pedals or impair safe
operation of your vehicle in other ways.
WARNING!
An improperly attached, damaged, folded, or
stacked floor mat, or damaged floor mat
fasteners may cause your floor mat to interfere
with the accelerator, brake, or clutch pedals and
cause a loss of vehicle control. To prevent
SERIOUS INJURY or DEATH:
 ALWAYS securely attach your floor
mat using the floor mat fasteners. DO
NOT install your floor mat upside down
or turn your floor mat over. Lightly pull
to confirm mat is secured using the floor mat
fasteners on a regular basis.
 ALWAYS REMOVE THE EXISTING
FLOOR MAT FROM THE VEHICLE
before installing any other floor mat.
NEVER install or stack an additional
floor mat on top of an existing floor mat.
ONLY install floor mats designed to fit your
vehicle. NEVER install a floor mat that cannot
be properly attached and secured to your
vehicle. If a floor mat needs to be replaced,
only use a FCA approved floor mat for the
specific make, model, and year of your
vehicle.
WARNING!
ONLY use the driver’s side floor mat on the
driver’s side floor area. To check for interfer -
ence, with the vehicle properly parked with the
engine off, fully depress the accelerator, the
brake, and the clutch pedal (if present) to
check for interference. If your floor mat inter -
feres with the operation of any pedal, or is not
secure to the floor, remove the floor mat from
the vehicle and place the floor mat in your
trunk.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.
ALWAYS make sure objects cannot fall or slide
into the driver’s side floor area when the
vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
WARNING!

23_WL_OM_EN_USC_t.book Page 304

SAFETY305
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven
wear patterns. Check for stones, nails, glass, or
other objects lodged in the tread or sidewall.
Inspect the tread for cuts and cracks. Inspect
sidewalls for cuts, cracks, and bulges. Check the
lug nut/bolt torque for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause should
be located and corrected immediately.
EXHAUST GAS
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners are
secure to the vehicle carpet. Fully depress
each pedal to check for interference with the
accelerator, brake, or clutch pedals then
re-install the floor mats.
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been properly
installed and is secured to your vehicle using
the floor mat fasteners by lightly pulling mat.
WARNING!
WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you
unconscious and can eventually poison you. To
avoid breathing (CO), follow these safety tips:
Do not run the engine in a closed garage or in
confined areas any longer than needed to
move your vehicle in or out of the area.
If you are required to drive with the trunk/lift -
gate/rear doors open, make sure that all
windows are closed and the climate control
BLOWER switch is set at high speed. DO NOT
use the recirculation mode.
If it is necessary to sit in a parked vehicle with
the engine running, adjust your heating or
cooling controls to force outside air into the
vehicle. Set the blower at high speed.
6

23_WL_OM_EN_USC_t.book Page 305

SERVICING AND MAINTENANCE359
F77 –20 Amp YellowTCM SBW
F78 –20 Amp YellowECM
F79 –10 Amp RedFuel Door / ELCM / Fuel Injectors *
F80 20 Amp Blue –ECM
F81 40 Amp Green –BCM Feed
F82 ––Not Populated
F83 40 Amp Green –
LTR Coolant Pump* / Trans Oil Pump *

F84 ––Not Populated
F85 –10 Amp RedPCR *
F86 50 Amp Red –BSM Feed #1
F87 ––Not Populated
F88 50 Amp Red –BSM Feed Motor #2
F89 ––Not Populated
F90 ––Not Populated
F91 ––Not Populated
F92 20 Amp Blue –Front De-Icer
F93 ––Not Populated
F94 –10 Amp RedA/C Compressor Clutch
F95 –10 Amp RedBatt Cool Heater *
F96 –5 Amp TanElect Cool Heater *
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
8

23_WL_OM_EN_USC_t.book Page 359