engine JEEP GRAND CHEROKEE 2018 Owner handbook (in English)

If the windshield or Automatic High Beam
Headlamp Control mirror is replaced, the
mirror must be re-aimed to ensure proper
performance. See your local authorized
dealer.
Flash-To-Pass
You can signal another vehicle with your
headlights by partially pulling the multifunc-
tion lever toward the steering wheel. This will
cause the high beam headlights to turn on
until the lever is released.
Parking Lights And Panel Lights
To turn on the parking lights and instrument
panel lights, rotate the headlight switch
clockwise. To turn off the parking lights,
rotate the headlight switch back to the O (Off)
position.
Headlights On Automatically With
Wipers
If your vehicle is equipped with Automatic
Headlights, it also has this customer-
programmable feature. When your headlights
are in the automatic mode and the engine isrunning, they will automatically turn on when
the wiper system is on. This feature is pro-
grammable through the Uconnect system
screen. Refer to “Uconnect Settings” in
“Multimedia” in the Owner’s Manual for fur-
ther information.
If your vehicle is equipped with a “Rain
Sensitive Wiper System” and it is activated,
the headlights will automatically turn on after
the wipers complete five wipe cycles within
approximately one minute, and they will turn
off approximately four minutes after the wip-
ers completely stop. Refer to “Windshield
Wipers And Washers” in “Getting To Know
Your Vehicle” for further information.
NOTE:
When your headlights come on during the
daytime, the instrument panel lights will au-
tomatically dim to the lower nighttime inten-
sity.
Headlight Delay
To aid in your exit, your vehicle is equipped
with a headlight delay that will leave the
headlights on for approximately up to 90 sec-
onds. This delay is initiated when the ignitionis turned OFF while the headlight switch is
on, and then the headlight switch is cycled
off. Headlight delay can be cancelled by
either turning the headlight switch on then
off, or by turning the ignition ON.
NOTE:
This feature can be programmed through the
Uconnect system. Refer to “Uconnect Set-
tings” in “Multimedia” in the Owner’s
Manual for further information.
Lights-On Reminder
If the headlights, parking lights, or cargo
lights are left on after the ignition is turned
OFF, a chime will sound when the driver’s
door is opened.
Front And Rear Fog Lights — If Equipped
The front and rear fog lights may be operated
as desired when visibility is poor due to fog.
The fog lights will activate in the following
order: Push the headlight switch once and
the front fog lights come on. Push the switch
a second time and the rear fog lights will
come on (front fog lights stay on). Push the
GETTING TO KNOW YOUR VEHICLE
36

• If your air conditioning performance seems
lower than expected, check the front of the
A/C condenser (located in front of the ra-
diator), for an accumulation of dirt or in-
sects. Clean with a gentle water spray from
the front of the radiator and through the
condenser.
MAX A/C
MAX A/C sets the control for maximum cool-
ing performance.
Press and release to toggle between MAX A/C
and the prior settings. The button illuminates
when MAX A/C is on.
In MAX A/C, the blower level and mode posi-
tion can be adjusted to desired user settings.
Pressing other settings will cause the MAX
A/C operation to switch to the selected set-
ting and MAX A/C to exit.
Recirculation
In cold weather, use of Recirculation mode
may lead to excessive window fogging. The
Recirculation feature may be unavailable
(button on the touchscreen greyed out) if
conditions exist that could create fogging on
the inside of the windshield.On systems with Manual Climate Controls,
the Recirculation mode is not allowed in
Defrost mode to improve window clearing
operation. Recirculation is disabled auto-
matically if this mode is selected. Attempting
to use Recirculation while in this mode
causes the LED in the control button to blink
and then turns off.
Automatic Temperature Control (ATC) —
If Equipped
Automatic Operation
1. Push the AUTO button on the faceplate,
or the AUTO button on the touchscreen on
the Automatic Temperature Control (ATC)
Panel.
2. Next, adjust the temperature you would
like the system to maintain by adjusting
the driver and passenger temperature
control buttons. Once the desired tem-
perature is displayed, the system will
achieve and automatically maintain that
comfort level.3. When the system is set up for your comfort
level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system
to function automatically.
NOTE:
• It is not necessary to move the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.
• The temperature can be displayed in U.S.
or Metric units by selecting the US/Metric
customer-programmable feature. Refer to
the “Uconnect Settings” in “Multimedia”
in your Owner’s Manual for further
information.
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
47

Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Use of the Air Recircula-
tion mode during Winter months is not rec-
ommended, because it may cause window
fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for
about five minutes, in fresh air with the
blower setting on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
• Use care when washing the inside of
the rear window. Do not use abrasive
window cleaners on the interior surface
of the window. Use a soft cloth and a
CAUTION!
mild washing solution, wiping parallel
to the heating elements. Labels can be
peeled off after soaking with warm
water.
• Do not use scrapers, sharp instru-
ments, or abrasive window cleaners on
the interior surface of the window.
• Keep all objects a safe distance from
the window.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc-
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust
and pollen from the air. Contact an autho-
rized dealer to service your cabin air filter,
and to have it replaced when needed.
GETTING TO KNOW YOUR VEHICLE
48

Uconnect SRT Performance Features
WARNING!
Measurement of vehicle statistics with the
Performance Features is intended for off-
highway or off-road use only and should
not be done on any public roadways. It is
recommended that these features be used
in a controlled environment and within the
limits of the law. The capabilities of the
vehicle as measured by the performance
pages must never be exploited in a reck-
less or dangerous manner, which can jeop-
ardize the user’s safety or the safety of
others. Only a safe, attentive, and skillful
driver can prevent accidents.
• To access the SRT Performance Features,
press the “Apps” button on the touch-
screen then press the “Performance
Pages” button on the touchscreen.
• The Performance Page includes the follow-
ing menus:
•
Home•
Gauges 2
•
Timers•
G – Force
•
Gauges 1•
Engine
Diesel Exhaust Fluid (DEF) Warning Mes-
sages
Your vehicle will begin displaying warning
messages when the DEF level reaches a driv-
ing range of approximately 500 miles. If the
following warning message sequence is ig-
nored, your vehicle may not restart unless
DEF is added with in the mileage shown in
the instrument cluster display message.
•Engine Will Not Restart in XXXX mi DEF Low
Refill Soon— This message will display
when DEF driving range is less than
500 miles, DEF fluid top off is required
with in the displayed mileage. The message
will be shown in the display during vehicle
start up with the current allowed mileage
and accompanied by a single chime. The
remaining mileage can be pulled up any-
time by way of the “Messages” list within
the instrument cluster display.
•Engine Will Not Restart in XXXX mi Refill DEF
— This message will display when DEF
driving range is less than 311 miles. It is
also displayed at 249 miles, 186 miles,
and 124 miles. Continuous Display starts
at 124 miles. DEF fluid top off is requiredwith in the displayed mileage. The message
will be shown in the display during vehicle
start up with an updated distance mileage,
and it will be accompanied by a single
chime. Starting at 100 miles, remaining
range will be continuously displayed while
operating the vehicle. Chimes will also ac-
company the 75, 50 and 25 mile remaining
distances. The DEF Low telltale will be on
continuously until DEF fluid is topped off.
•Engine Will Not Restart Refill DEF— This
message will display when the DEF driving
range is less than 1 mile, DEF fluid top off
is required or the engine will not restart.
The message will be shown in the instru-
ment cluster display during vehicle start
up, and it will be accompanied by a single
chime. The DEF Low telltale will be illumi-
nated continuously until DEF fluid tank is
filled with a minimum of 2 gallons (7.5 li-
ters) of DEF.
GETTING TO KNOW YOUR INSTRUMENT PANEL
64

Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are different messages which are dis-
played if the vehicle detects that the DEF
system has been filled with a fluid other than
DEF, has experienced component failures, or
when tampering has been detected.
When the DEF system needs to be serviced
the following warnings will display:
•Service DEF System See Dealer— This mes-
sage will display when the fault is initially
detected and each time the vehicle is
started. The message will be accompanied
by a single chime and the Malfunction
Indicator Light. We recommend you drive to
your nearest authorized dealer and have
your vehicle serviced immediately. If not
corrected in 30 miles, vehicle will enter the
“Engine Will not restart in XXXmi Service
DEF See dealer” warning stage and mes-
sage.
•Incorrect DEF Detected See Dealer— This
message will display if the DEF system has
detected the incorrect fluid has been intro-
duced to the DEF tank. The message will be
accompanied by a single chime. We recom-mend you drive to your nearest authorized
dealer and have your vehicle serviced im-
mediately. If not corrected in 30 miles,
vehicle will enter the Engine Will not restart
in XXX mi Service DEF See dealer warning
stage and message.
•Engine Will Not Restart in XXX mi Service DEF
See Dealer— This message is first dis-
played if the fault detected is not serviced
after 30 miles of operation. It is also dis-
played at 250 miles, 186 miles, and
124 miles. System service is required
within the displayed mileage. The message
will be displayed in the instrument cluster
display during vehicle start up with an up-
dated distance mileage, and it will be ac-
companied by a single chime. Starting at
124 miles, remaining range will be con-
tinuously displayed while operating the ve-
hicle. Chimes will also accompany the 75,
5,0 and 25 mile remaining distances. We
recommend you drive to your nearest au-
thorized dealer and have your vehicle ser-
viced immediately.•Engine Will Not Restart Service DEF System
See Dealer— This message will display if
DEF system issue detected is not serviced
during the allowed period. Your engine will
not restart unless your vehicle is serviced by
your authorized dealer. This message will
be displayed when under 1 mile until en-
gine will not start and each time the vehicle
is started, and will be continuously dis-
played. The message will be accompanied
by a single chime. Your Malfunction Indi-
cator Light will be continuously illumined.
We highly recommend you drive to your
nearest authorized dealer if the message
appears while engine is running.
•Engine Will Not Start Service DEF System See
Dealer— This message will display when
the fault detected is not serviced after the
Engine will not restart Service DEF System
See Dealer message is displayed on the
next subsequent restart. Your engine will
not start unless you vehicle is serviced by
your authorized dealer. The message will be
accompanied by a single chime. Your Mal-
function Indicator Light will be continu-
ously illuminated. If the message appears
and you can not start the engine, we rec-
65

If the light remains on when the parking
brake has been disengaged, and the fluid
level is at the full mark on the master cylinder
reservoir, it indicates a possible brake hy-
draulic system malfunction or that a problem
with the Brake Booster has been detected by
the Anti-Lock Brake System (ABS) / Elec-
tronic Stability Control (ESC) system. In this
case, the light will remain on until the condi-
tion has been corrected. If the problem is
related to the brake booster, the ABS pump
will run when applying the brake, and a brake
pedal pulsation may be felt during each stop.
The dual brake system provides a reserve
braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in
either half of the dual brake system is indi-
cated by the Brake Warning Light, which will
turn on when the brake fluid level in the
master cylinder has dropped below a speci-
fied level.
The light will remain on until the cause is
corrected.NOTE:
The light may flash momentarily during sharp
cornering maneuvers, which change fluid
level conditions. The vehicle should have
service performed, and the brake fluid level
checked.
If brake failure is indicated, immediate repair
is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
Have the vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake
System (ABS) are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is re-
quired.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from
the OFF position to the ON/RUN position.The light should illuminate for approximately
four seconds. The light should then turn off
unless the parking brake is applied or a brake
fault is detected. If the light does not illumi-
nate, have the light inspected by an autho-
rized dealer.
The light also will turn on when the parking
brake is applied with the ignition switch in
the ON/RUN position.
NOTE:
This light shows only that the parking brake is
applied. It does not show the degree of brake
application.
— Battery Charge Warning Light
This light illuminates when the battery is not
charging properly. If it stays on while the
engine is running, there may be a malfunc-
tion with the charging system. Contact your
authorized dealer as soon as possible.
This indicates a possible problem with the
electrical system or a related component.
— Door Open Warning Light
This indicator will illuminate when a door is
ajar/open and not fully closed.
67

NOTE:
If the vehicle is moving, there will also be a
single chime.
— Electric Power Steering Fault
Warning Light
This light will turn on when there's a fault
with the EPS (Electric Power Steering) sys-
tem. Refer to “Power Steering” in “Starting
And Operating” in the Owner’s Manual for
further information.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
— Electronic Throttle Control (ETC)
Warning Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected while the vehicle is run-
ning, the light will either stay on or flash
depending on the nature of the problem.Cycle the ignition when the vehicle is safely
and completely stopped and the transmission
is placed in the PARK position. The light
should turn off. If the light remains on with
the vehicle running, your vehicle will usually
be drivable; however, see an authorized
dealer for service as soon as possible.
NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.
If the light continues to flash when the ve-
hicle is running, immediate service is re-
quired and you may experience reduced per-
formance, an elevated/rough idle, or engine
stall and your vehicle may require towing.
The light will come on when the ignition is
placed in the ON/RUN or ACC/ON/RUN posi-
tion and remain on briefly as a bulb check. If
the light does not come on during starting,
have the system checked by an authorized
dealer.
— Engine Coolant Temperature Warn-
ing Light
This light warns of an overheated engine
condition. If the engine coolant temperature
is too high, this indicator will illuminate and
a single chime will sound. If the temperature
reaches the upper limit, a continuous chime
will be sound for four minutes or until the
engine is able to cool: whichever comes first.
If the light turns on while driving, safely pull
over and stop the vehicle. If the A/C system is
on, turn it off. Also, shift the transmission
into NEUTRAL and idle the vehicle. If the
temperature reading does not return to nor-
mal, turn the engine off immediately and call
for service. Refer to “If Your Engine Over-
heats” in “In Case Of Emergency” for further
information.
— Hood Open Warning Light
This indicator will illuminate when the hood
is ajar/open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
GETTING TO KNOW YOUR INSTRUMENT PANEL
68

— Liftgate Open Warning Light
This indicator light will illuminate when the
liftgate is open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Oil Pressure Warning Light
This warning light will illuminate to indicate
low engine oil pressure. If the light turns on
while driving, stop the vehicle and shut off
the engine as soon as possible. A chime will
sound when this light turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how
much oil is in the engine. The engine oil level
must be checked under the hood.
— Oil Temperature Warning Light
This telltale indicates engine oil temperature
is high. If the light turns on while driving,
stop the vehicle and shut off the engine as
soon as possible. Wait for oil temperature to
return to normal levels.
— Seat Belt Reminder Warning Light
This light indicates when the driver or pas-
senger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or
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 Sys-
tems” in “Safety” for further information.
— Transmission Temperature Warning
Light — If Equipped
This light indicates 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.
69

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 light monitors the Anti-Lock Brake Sys-
tem (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.If the ABS light does not turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, have the brake system in-
spected by an authorized dealer.
— Electronic Stability Control (ESC) Off
Warning Light — If Equipped
This 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.
The ESC OFF indicator will be lit any time the
Traction Mode is set to Sport, Track or Full
OFF in Drive Modes.
— Electronic Stability Control (ESC)
Active Warning Light — If Equipped
This light will indicate when the Electronic
Stability Control system is Active. The “ESC
Indicator Light” in the instrument cluster will
come on when the ignition is placed in the
ON/RUN or ACC/ON/RUN position, and when
ESC is activated. It should go out with the
engine running. If the “ESC Indicator Light”
comes on continuously with the engine run-ning, a malfunction has been detected in the
ESC system. If this light remains on after
several ignition cycles, and the vehicle has
been driven several miles (kilometers) at
speeds greater than 30 mph (48 km/h), see
your 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 click-
ing sounds when it is active. This is normal;
the sounds will stop when ESC becomes
inactive.
• This light will come on when the vehicle is
in an ESC event.— Service LaneSense Warning Light
— If Equipped
This light will turn on when the LaneSense
system is not operating and needs service.
Please see an authorized dealer.
GETTING TO KNOW YOUR INSTRUMENT PANEL
70

— 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.
— Low Fuel Warning Light
When the fuel level reaches approximately
2.4 gal (9.1 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 indicator will illuminate when the wind-
shield washer fluid is low.
— Engine Check/Malfunction Indica-
tor Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diagnostic
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 illumi-
nate 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 MIL may
flash to alert serious conditions that could
lead to immediate loss of power or severe
catalytic converter damage. The vehicle
should be serviced as soon as possible if this
occurs.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher tem-
peratures than in normal operating condi-
tions. This can cause a fire if you drive
slowly or park over flammable substances
such as dry plants, wood, cardboard, etc.
This could result in death or serious injury
to the driver, occupants or others.
CAUTION!
Prolonged driving with the Malfunction
Indicator Light (MIL) on could cause dam-
age to the vehicle control system. It also
could affect fuel economy and driveability.
If the MIL is flashing, severe catalytic
converter damage and power loss will soon
occur. Immediate service is required.
71