2021 JEEP CHEROKEE transmission

GETTING TO KNOW YOUR INSTRUMENT PANEL
68
ously with the engine running, a malfunction
has been detected in the ESC system. If this
warning light remains on after several igni-
tion cycles, and the vehicle has been driven
several miles (kilometers) at speeds greater
than 30 mph (48 km/h), see an authorized
dealer as soon as possible to have the
problem diagnosed and corrected.
The “ESC OFF Indicator Light” and the
“ESC Indicator Light” come on momen -
tarily each time the ignition is placed in
the ON/RUN or ACC/ON/RUN position.
The ESC system will make buzzing or
clicking sounds when it is active. This is
normal; the sounds will stop when ESC
system becomes inactive.
This light will come on when the vehicle is
in an ESC event.
— Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the Electronic
Stability Control (ESC) is off.
Each time the ignition is turned to ON/RUN
or ACC/ON/RUN, the ESC system will be on,
even if it was turned off previously.
— Low Fuel Warning Light
When the fuel level reaches approximately 2
gal (7.5 L) this light will turn on, and remain
on until fuel is added.
A single warning chime will sound with Low
Fuel Warning.
— Low Washer Fluid Warning Light — If
Equipped
This warning light will illuminate when the
windshield washer fluid is low.
— Service LaneSense Warning Light — If
Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please see an authorized
dealer.
— LaneSense Warning Light — If
Equipped

The LaneSense Warning Light will be solid
yellow when the vehicle is approaching a lane
marker. The warning light will flash when the
vehicle is crossing the lane marker.
Refer to “LaneSense — If Equipped" in
“Starting And Operating” for further informa
-
tion.
— Engine Check/Malfunction Indicator
Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diag -
nostic System called OBD II that monitors
engine and automatic transmission control
systems. This warning light will illuminate
when the ignition is in the ON/RUN position
before engine start. If the bulb does not
come on when turning the ignition switch
from OFF to ON/RUN, have the condition
checked promptly.
Certain conditions, such as a loose or
missing gas cap, poor quality fuel, etc., may
illuminate the light after engine start. The
vehicle should be serviced if the light stays
on through several typical driving styles. In
most situations, the vehicle will drive
normally and will not require towing.
When the engine is running, the Malfunction
Indicator Light (MIL) may flash to alert
serious conditions that could lead to imme -
diate loss of power or severe catalytic
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GETTING TO KNOW YOUR INSTRUMENT PANEL
74
— Speed Warning Indicator Light
The white indicator will illuminate along with
a text message (Speed Warning Set to XX
followed by unit), once the feature is
enabled. When the set speed is exceeded, a
continuous chime (up to 10 seconds or until
the speed is no longer exceeded) will sound
along with a Speed Warning Exceeded pop
up message and the indicator light will turn
yellow and flash.
NOTE:
The number “31” is only an example of a
speed that can be selected.
— Selec Speed Control Indicator Light —
If Equipped
This light will turn on when “Selec Speed
Control” is activated.
To activate “Selec Speed Control”, assure
the vehicle is Four Wheel Drive Low (4WD)
and push the button on the Instrument
Panel.
NOTE:
If the vehicle is not in 4WD Low, “To Enter
Selec-Speed Shift to 4WD Low” will appear
in the instrument cluster display.
— Cruise Control Ready Indicator Light
This light will turn on when the Speed
Control has been turned on, but not set.
Refer to “Speed Control — If Equipped” in
“Starting And Operating” for further informa -
tion.
Blue Indicator Lights
— High Beam Indicator Light
This indicator light will illuminate to indicate
that the high beam headlights are on. With
the low beams activated, push the multi -
function lever forward (toward the front of
the vehicle) to turn on the high beams. Pull
the multifunction lever rearward (toward the
rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the
lever toward you for a temporary high beam
on, “flash to pass” scenario.
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 drive -
able and not need towing, see an authorized
dealer for service as soon as possible.
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SAFETY
82
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 transmission is in PARK (P) or
NEUTRAL (N). For vehicles equipped with
a manual transmission, if the clutch is
pressed, HSA will remain active.
Disabling And Enabling HSA
This feature can be turned on or turned off.
To change the current setting, proceed as
follows:
If disabling HSA using your instrument
cluster display, refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
If disabling HSA using Uconnect Settings,
refer to “Uconnect Settings” in “Multi-
media” for further information.
For vehicles not equipped with an instru -
ment cluster display, perform the following
steps:
1. Center the steering wheel (front wheels pointing straight forward)
2. Shift the transmission into PARK (P)
3. Apply the park brake
4. Start the engine 5. Rotate the steering wheel slightly more
than one-half turn to the left
6. Push the “ESC OFF” button located in the lower switch bank below the climate
control four times within 20 seconds.
The “ESC Off Indicator Light” should
turn on and turn off two times
7. Rotate the steering wheel back to center and then an additional slightly more than
one-half turn to the right
8. Turn the ignition to the OFF mode and then back to ON. If the sequence was
completed properly, the “ESC Off Indi -
cator Light” will blink several times to
confirm HSA is disabled
9. Repeat these steps if you want to return this feature to its previous setting
WARNING!
There may be situations where the Hill
Start Assist (HSA) will not activate and
slight rolling may occur, such as on minor
hills or with a loaded vehicle, or while
pulling a trailer. HSA is not a substitute for
active driving involvement. It is always the
driver’s responsibility to be attentive to
distance to other vehicles, people, and
objects, and most importantly brake
operation to ensure safe operation of the
vehicle under all road conditions. Your
complete attention is always required
while driving to maintain safe control of
your vehicle. Failure to follow these
warnings can result in a collision or serious
personal injury.
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83
Towing With HSA
HSA will also provide assistance to mitigate
roll back while towing a trailer.
Rain Brake Support (RBS)
Rain Brake Support (RBS) may improve
braking performance in wet conditions. It
will periodically apply a small amount of
brake pressure to remove any water buildup
on the front brake rotors. It functions when
the windshield wipers are in LO or HI speed.
When Rain Brake Support is active, there is
no notification to the driver and no driver
interaction is required.
Ready Alert Braking (RAB)
Ready Alert Braking (RAB) may reduce the
time required to reach full braking during
emergency braking situations. It anticipates
when an emergency braking situation may
occur by monitoring how fast the throttle is
released by the driver. The EBC will prepare
the brake system for a panic stop.
Hill Descent Control (HDC) — If Equipped
Hill Descent Control (HDC) is intended for
low speed off-road driving while in 4L Range.
HDC maintains vehicle speed while
descending hills during various driving situa-
tions. HDC controls vehicle speed by actively
controlling the brakes.
HDC Has Three States:
1. Off (feature is not enabled and will not activate).
2. Enabled (feature is enabled and ready but activation conditions are not met, or
driver is actively overriding with brake or
throttle application).
3. Active (feature is enabled and actively controlling vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch,
but the following conditions must also be
met to enable HDC:
Driveline is in 4L Range
Vehicle speed is below 5 mph (8 km/h)
Park brake is released
Driver door is closed
WARNING!
If you use a trailer brake controller with
your trailer, the trailer brakes may be
activated and deactivated with the brake
switch. If so, there may not be enough
brake pressure to hold both the vehicle
and the trailer on a hill when the brake
pedal is released. In order to avoid
rolling down an incline while resuming
acceleration, manually activate the
trailer brake or apply more vehicle brake
pressure prior to releasing the brake
pedal.
HSA is not a parking brake. Always apply
the parking brake fully when exiting your
vehicle. Also, be certain to place the
transmission in PARK (P).
Failure to follow these warnings can
result in a collision or serious personal
injury.
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SAFETY
84
Activating HDC
Once HDC is enabled it will activate auto-
matically if driven down a grade of sufficient
magnitude. The set speed for HDC is select -
able by the driver, and can be adjusted by
using the gear shift +/-. The following
summarizes the HDC set speeds:
HDC Target Set Speeds
P = No set speed. HDC may be enabled
but will not activate.
R = 0.6 mph (1 km/h)
N = 1.2 mph (2 km/h)
D = 0.6 mph (1 km/h)
1st = 0.6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 2.5 mph (4 km/h)
5th = 3.1 mph (5 km/h)
6th = 3.7 mph (6 km/h)
7th = 4.3 mph (7 km/h)
8th = 5.0 mph (8 km/h)
9th = 5.6 mph (9 km/h) – If Equipped NOTE:
During HDC the +/- shifter input is used for
HDC target speed selection, but will not
affect the gear chosen by the transmission.
When actively controlling HDC the transmis
-
sion will shift appropriately for the
driver-selected set speed and corresponding
driving conditions.
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:
Driver overrides HDC set speed with
throttle or brake application.
Vehicle speed exceeds 20 mph (32 km/h) but remains below 40 mph (64 km/h).
Vehicle is on a downhill grade of insuffi -
cient magnitude, is on level ground, or is
on an uphill grade.
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 4L Range
The park brake is applied
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 lamp will illu -
minate and remain on solid when HDC is
enabled or activated. This is the normal
operating condition for HDC.
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85
The cluster icon and switch lamp will flash
for several seconds then extinguish when
the driver pushes the HDC switch but
enable conditions are not met.
The cluster icon and switch lamp will flash
for several seconds then extinguish when
HDC disables due to excess speed.
The cluster icon and switch lamp will flash
when HDC deactivates due to overheated
brakes. The flashing will stop and HDC will
activate again once the brakes have cooled
sufficiently.
Selec Speed Control (SSC) — If Equipped
Selec Speed Control (SSC) is intended for off
road driving in 4L only. SSC maintains
vehicle speed by actively controlling engine
torque and brakes.
SSC has three states:
1. Off (feature is not enabled and will notactivate).
2. Enabled (feature is enabled and ready but activation conditions are not met, or
driver is actively overriding with brake or
throttle application).
3. Active (feature is enabled and actively controlling vehicle speed).
Enabling SSC
SSC is enabled by pushing the SSC switch,
but the following conditions must also be
met to enable SSC:
Driveline is in 4L Range
Vehicle speed is below 5 mph (8 km/h)
Park brake is released
Driver door is closed
Driver is not applying throttle Activating SSC
Once SSC is enabled it will activate automat
-
ically once the following conditions are met:
Driver releases throttle
Driver releases brake
Transmission is in any selection other than
PARK (P)
Vehicle speed is below 20 mph (32 km/h)
The set speed for SSC is selectable by the
driver, and can be adjusted by using the gear
shift +/-. Additionally, the SSC set speed
may be reduced when climbing a grade and
the level of set speed reduction depends on
the magnitude of grade. The following
summarizes the SSC set speeds:
SSC Target Set Speeds
1st = .6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 2.5 mph (4 km/h)
5th = 3.1 mph (5 km/h)
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.
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SAFETY
86
6th = 3.7 mph (6 km/h)
7th = 4.3 mph (7 km/h)
8th = 5 mph (8 km/h)
9th = 5.6 mph (9 km/h) – If Equipped
REVERSE = .6 mph (1 km/h)
NEUTRAL = 1.2 mph (2 km/h)
PARK = SSC remains enabled but not
active
NOTE:
During SSC the +/- shifter input is used for
SSC target speed selection but will not
affect the gear chosen by the transmis-
sion. While actively controlling SSC the
transmission will shift appropriately for
the driver-selected set speed and corre-
sponding driving conditions.

SSC performance is influenced by the
Terrain Select mode. This difference may be
notable to the driver and may be perceived
as a varying level of aggressiveness.
Driver Override:
The driver may override SSC activation with
throttle or brake application at any time.
Deactivating SSC
SSC will be deactivated but remain available
if any of the following conditions occur:
Driver overrides SSC set speed with
throttle or brake application.
Vehicle speed exceeds 20 mph (32 km/h)
but remains below 40 mph (64 km/h).
Vehicle is shifted to PARK.
Disabling SSC
SSC will deactivate and be disabled if any of
the following conditions occur:
The driver pushes the SSC switch
The driveline is shifted out of 4L Range
The park brake is applied
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) (SSC exits immediately) Feedback To The Driver:
The instrument cluster has an SSC icon and
the SSC switch has an LED which offer feed
-
back to the driver about the state SSC is in.
The cluster icon and switch lamp will illu -
minate and remain on solid when SSC is
enabled or activated. This is the normal
operating condition for SSC.
The cluster icon and switch lamp will flash
for several seconds then extinguish when
the driver pushes the SSC switch but
enable conditions are not met.
The cluster icon and switch lamp will flash
for several seconds then extinguish when
SSC disables due to excess speed.
The cluster icon and switch lamp will flash
then extinguish when SSC deactivates due
to overheated brakes.
WARNING!
SSC is only intended to assist the driver in
controlling vehicle speed when driving in
off road conditions. The driver must
remain attentive to the driving conditions
and is responsible for maintaining a safe
vehicle speed.
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SAFETY
116
(Continued)
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
Circulation 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 pumpNOTE:
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
compartment 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
Response System functions after an event,
the ignition switch must be changed from
ignition START or ON/RUN to ignition OFF.
Carefully 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.
It is dangerous to try to repair any part of
the air bag system yourself. Be sure to
tell anyone who works on your vehicle
that it has an air bag system.
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