2020 JEEP GRAND CHEROKEE brake light

WARNING!
• NEVER place any objects under the floor
mat (e.g., towels, keys, etc.). These ob-
jects 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 accelera-
tor, 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 se-
cured to your vehicle using the floor mat
fasteners by lightly pulling mat.
Periodic Safety Checks You Should Make
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 wheel nuts 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.
WARNING!
To prevent SERIOUS INJURY or DEATH
when using “Track-Use” parts and equip-
ment:
• NEVER use any “Track-Use” equipment
on public roads. FCA does not authorize
the use of “Track-Use” equipment on
public roads.
• The intended use of “Track-Use” parts is
for race vehicles on race tracks. To help
ensure the safety of the race driver, en-
gineers should supervise the installation
of “Track-Use” parts.
• FCA does not authorize the installation
or use of any part noted as “Track-Use”
on any new vehicle prior to its first retail
sale.
143

WARNING!
fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the gear selector.
• Do not leave the key fob in or near the
vehicle, or in a location accessible to
children, and do not leave the ignition of
a vehicle equipped with Keyless Enter-
N-Go in the ACC or ON/RUN mode. A
child could operate power windows,
other controls, or move the vehicle.
• Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury
or death.
NOTE:
Engine start up in very low ambient tempera-
ture could result in evident white smoke. This
condition will disappear as the engine warms
up.
CAUTION!
• The engine is allowed to crank as long as
30 seconds. If the engine fails to start
during this period, please wait at least
two minutes for the starter to cool before
repeating start procedure.
• If the “Water in Fuel Indicator Light”
remains on, DO NOT START engine be-
fore you drain the water from the fuel
filters to avoid engine damage. Refer to
“Draining Fuel/Water Separator Filter”
in “Servicing And Maintenance” in your
Diesel Supplement for further informa-
tion, which can be found with your on-
line Owner’s Information.
Automatic Transmission
Start the engine with the transmission gear
selector in the PARK position. Apply the
brake before shifting to any driving range.
Normal Starting
Observe the instrument panel cluster lights
when starting the engine.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or press-
ing the accelerator pedal
1. Always apply the parking brake.
2. Press and hold the brake pedal while
pushing the ENGINE START/STOP button
once.
NOTE:
A delay of the start of up to five seconds is
possible under very cold conditions. The
"Wait to Start" telltale will be illuminated
during the pre-heat process, When the
engine Wait To Start light goes off the
engine will automatically crank.
CAUTION!
If the “Water in Fuel Indicator Light” re-
mains on, DO NOT START engine before
you drain the water from the fuel filters to
149

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

placing the transmission in PARK. This sys-
tem also locks the transmission in PARK
whenever the ignition is in the OFF mode.
NOTE:
The transmission is NOT locked in PARK
when the ignition is in the ACC mode (even
though the engine will be off). Ensure that
the transmission is in PARK, and the ignition
isOFF(not in ACC mode) before exiting the
vehicle.
Brake/Transmission Shift Interlock
System
This vehicle is equipped with a Brake Trans-
mission Shift Interlock system (BTSI) that
holds the transmission gear selector in PARK
unless the brakes are applied. To shift the
transmission out of PARK, the engine must
be running and the brake pedal must be
pressed. The brake pedal must also be
pressed to shift from NEUTRAL into DRIVE or
REVERSE when the vehicle is stopped or
moving at low speeds.
Fuel Economy (ECO) Mode
The Fuel Economy (ECO) mode can improve
the vehicle's overall fuel economy during nor-
mal driving conditions. Push the “ECO”
switch in the center stack of the instrument
panel to activate or disable ECO mode. A
light on the switch indicates when ECO mode
is disabled (for regular models) or enabled
(for SRT models).When the Fuel Economy (ECO) Mode is en-
gaged, the vehicle control systems will
change the following:
• The transmission will upshift sooner and
downshift later.
• The overall driving performance will be
more conservative.
• Vehicles with Quadra-Lift air suspension
will operate in "Aero" mode over a broader
speed range. Refer to the section on
Quadra-Lift for further information.
• In SRT models, the transmission will
launch (from a stop) in second gear, and
the torque converter clutch may engage at
lower engine speeds and remain on longer.
• Some ECO mode functions may be tempo-
rarily inhibited based on temperature and
other factors.
Active Noise Cancellation — If Equipped
Your vehicle is equipped with an Active Noise
Cancellation System. This system uses four
microphones embedded in the headliner to
detect undesirable exhaust noise, which
sometimes occurs when operating in specific
driving conditions such as ECO and Tow
ECO Switch
STARTING AND OPERATING
156

Shifting Procedures
4WD HI To 4WD LOW
With the vehicle at speeds of 0 to 3 mph (0 to
5 km/h), the ignition switch in the ON posi-
tion or the engine running, shift the transmis-
sion into “N”, and push the “4WD LOW”
button once on the transfer case switch. The
“4WD LOW” indicator light in the instrument
cluster will begin to flash and remain on solid
when the shift is complete.
NOTE:
If shift conditions/interlocks are not met, or a
transfer case motor temperature protection
condition exists, a “For 4x4 Low Slow Below
3 mph (5 km/h) Put Trans in “N” Press
4 Low” message will flash from the instru-ment cluster display. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.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 posi-
tion or the engine running, shift the transmis-
sion into NEUTRAL, and push the “4WD
LOW” button once on the transfer case
switch. The “4WD LOW” indicator light in the
instrument cluster will flash and go out when
the shift is complete.
NOTE:
• If shift conditions/interlocks are not met, or
a transfer case motor temperature protec-
tion condition exists, a “For 4x4 High Slow
Below 3 mph (5 km/h) Put Trans in N push
4 Low” message will flash from the instru-
ment cluster display. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
• Shifting into or out of 4WD LOW is possible
with the vehicle completely stopped; how-
ever, difficulty may occur due to the mating
clutch teeth not being properly aligned.Several attempts may be required for
clutch teeth alignment and shift comple-
tion 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.
Shifting Into NEUTRAL (N)
WARNING!
You or others could be injured or killed if
you leave the vehicle unattended with the
transfer case in the NEUTRAL (N) position
without first fully engaging the parking
brake. The NEUTRAL (N) position disen-
gages both the front and rear drive shafts
from the powertrain and will allow the
vehicle to roll, even if the transmission is
in PARK. The parking brake should always
be applied when the driver is not in the
vehicle.
1. Bring the vehicle to a complete stop, with
the engine running.
2. Press and hold the brake pedal.
3. Shift the transmission into NEUTRAL.
Transfer Case Switch
161

4. If vehicle is equipped with Quadra-Lift air
suspension, ensure the vehicle is set to
Normal Ride Height.
5. Using a ballpoint pen or similar object,
push and hold the recessed transfer case
NEUTRAL (N) button (located by the se-
lector switch) for four seconds. The light
behind the NEUTRAL (N) symbol will
blink, indicating shift in progress. The
light will stop blinking (stay on solid)
when the shift to NEUTRAL (N) is com-
plete. A “NEUTRAL” message will appear
in the instrument cluster display. Refer to
“Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” for fur-
ther information.6. After the shift is completed and the NEU-
TRAL (N) light stays on, release the NEU-
TRAL (N) button.
7. Shift the transmission into REVERSE.
8. Release the brake pedal for five seconds
and ensure that there is no vehicle
movement.
9. Press and hold the brake pedal. Shift the
transmission back into NEUTRAL.
10. Firmly apply the parking brake.
11. With the transmission and transfer case
in NEUTRAL, push and hold the EN-
GINE START/STOP button until the en-
gine turns off.
12. Place the transmission gear selector in
PARK. Release the brake pedal.
13. Push the ENGINE STOP/START button
twice (without pressing the brake pedal),
to turn the ignition to the OFF mode.
14. Release the parking brake only when the
vehicle is securely attached to a tow
vehicle.NOTE:
If shift conditions/interlocks are not met, a
“To Tow Vehicle Safely, Read Neutral Shift
Procedure in Owner’s Manual” message will
flash from the instrument cluster display.
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
further information.
Shifting Out Of NEUTRAL (N)
Use the following procedure to prepare your
vehicle for normal usage.
1. Bring the vehicle to a complete stop.
2. Firmly apply the parking brake.
3. Start the engine.
4. Press and hold the brake pedal.
5. Shift the transmission into NEUTRAL.
6. Using a ballpoint pen or similar object,
push and hold the recessed transfer case
NEUTRAL (N) button (located by the se-
lector switch) for one second.
NEUTRAL (N) Switch
STARTING AND OPERATING
162

in the Owner’s Manual for more information.
The speed increment shown is dependant on
the chosen speed unit of U.S. (mph) or Met-
ric (km/h):
U.S. Speed (mph)
• Pushing the SET(+)button once will result
in a 1 mph increase in set speed. Each
subsequent tap of the button results in an
increase of 1 mph.
• If the button is continually pushed, the set
speed will continue to increase in 5 mph
increments until the button is released.
The increase in set speed is reflected in the
instrument cluster display.
Metric Speed (km/h)
• Pushing the SET(+)button once will result
in a 1 km/h increase in set speed. Each
subsequent tap of the button results in an
increase of 1 km/h.
• If the button is continually pushed, the set
speed will continue to increase in 10 km/h
increments until the button is released.
The increase in set speed is reflected in the
instrument cluster display.To Decrease Speed
While ACC is set, the set speed can be de-
creased by pushing the SET(-)button.
The driver's preferred units can be selected
through the instrument panel settings. Refer
to “Getting To Know Your Instrument Panel”
in the Owner’s Manual for more information.
The speed increment shown is dependant on
the chosen speed unit of U.S. (mph) or Met-
ric (km/h):
U.S. Speed (mph)
• Pushing the SET(-)button once will result
in a 1 mph decrease in set speed. Each
subsequent tap of the button results in a
decrease of 1 mph.
• If the button is continually pushed, the set
speed will continue to decrease in 5 mph
decrements until the button is released.
The decrease in set speed is reflected in
the instrument cluster display.
Metric Speed (km/h)
• Pushing the SET(-)button once will result
in a 1 km/h decrease in set speed. Each
subsequent tap of the button results in a
decrease of 1 km/h.• If the button is continually pushed, the set
speed will continue to decrease in 10 km/h
decrements until the button is released.
The decrease in set speed is reflected in
the instrument cluster display.
NOTE:
• When you override and push the SET(+)
button or SET(-)buttons, the new set
speed will be the current speed of the
vehicle.
• When you use the SET(-)button to decel-
erate, if the engine’s braking power does
not slow the vehicle sufficiently to reach
the set speed, the brake system will auto-
matically slow the vehicle.
• The ACC system applies the brake down to
a full stop when following a target vehicle.
If an ACC host vehicle follows a target
vehicle to a standstill, the host vehicle will
release the vehicle brakes two seconds af-
ter coming to a full stop.
• The ACC system maintains set speed when
driving up hill and down hill. However, a
slight speed change on moderate hills is
normal. In addition, downshifting may oc-
cur while climbing uphill or descending
STARTING AND OPERATING
176

5. Using a ballpoint pen or similar object,
push and hold the recessed transfer case
NEUTRAL (N) button (located by the se-
lector switch) for four seconds. The light
behind the N symbol will blink, indicating
shift in progress. The light will stop blink-
ing (stay on solid) when the shift to NEU-
TRAL (N) is complete. A “FOUR WHEEL
DRIVE SYSTEM IN NEUTRAL” message
will appear in the instrument cluster.
6. After the shift is completed and the NEU-
TRAL (N) light stays on, release the NEU-
TRAL (N) button.
7. Shift the transmission into REVERSE.8. Release the brake pedal for five seconds
and ensure that there is no vehicle
movement.
9. Press and hold the brake pedal. Shift the
transmission back into NEUTRAL.
10. Firmly apply the parking brake.
11. With the transmission and transfer case
in NEUTRAL, push and hold the EN-
GINE START/STOP button until the en-
gine turns off.
12. Place the transmission gear selector in
PARK. Release the brake pedal.
13. Push the ENGINE STOP/START button
twice (without pressing the brake pedal),
to turn the ignition to the OFF mode.
14. Attach the vehicle to the tow vehicle
using a suitable tow bar.
15. Release the parking brake.
16. Turn the ignition to the ON/RUN posi-
tion, but do not start the engine.
17. Confirm that the steering column is
unlocked.18. Disconnect the negative battery cable,
and secure it away from the negative
battery post.
NOTE:
Disconnecting your vehicle battery will
erase radio presets and may affect other
vehicle settings. It may also trigger vari-
ous fault codes, causing MIL illumination
when the battery is reconnected.
NOTE:
• Steps 1 through 4 are requirements that
must be met before pushing the NEUTRAL
(N) button, and must continue to be met
until the shift has been completed. If any of
these requirements are not met before
pushing the NEUTRAL (N) button or are no
longer met during the shift, then the NEU-
TRAL (N) indicator light will flash continu-
ously until all requirements are met or until
the NEUTRAL (N) button is released.
• The ignition must be in the ON/RUN mode
for a shift to take place and for the position
indicator lights to be operable. If the igni-
tion is not in the ON/RUN mode, the shift
will not take place and no position indicator
lights will be on or flashing.
NEUTRAL (N) Switch
201