Jeep grand cherokee 2018 User manual

Grand Cherokee
DIESEL SUPPLEMENT
First Edition
Printed in the U.S.A.
18WK-226-AA
©2017 FCA US LLC. All Rights Reserved.
Jeep is a registered trademark of FCA US LLC.
2018
STICK WITH THE SPECIALISTS®
Grand Cherokee
2018

TABLE OF CONTENTS
SECTION PAGE
1INTRODUCTION ...................................................................3
2GETTING TO KNOW YOUR VEHICLE ....................................................7
3GETTING TO KNOW YOUR INSTRUMENT PANEL ..........................................11
4STARTING AND OPERATING .........................................................21
5SERVICING AND MAINTENANCE ......................................................47
6TECHNICAL SPECIFICATIONS .........................................................69
7INDEX ..........................................................................77
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INTRODUCTION
CONTENTS
䡵A MESSAGE FROM FCA US LLC ..............4
1

A MESSAGE FROM FCA US LLC
FCA US LLC welcomes you as a turbocharged diesel-
powered vehicle owner. Your diesel vehicle will sound,
feel, drive and operate differently from a gasoline-powered
vehicle. It is important that you read and understand this
manual.
Almost 100% of the heavy trucks in the United States and
Canada are diesel-powered because of the fuel economy,
rugged durability, and high torque which permits pulling
heavy loads.
You may find that some of the starting, operating, and
maintenance procedures are different. However, they are
simple to follow and careful adherence to them will ensure
that you take full advantage of the features of this engine.
NOTE:
•Some aftermarket products may cause severe engine/
transmission and/or exhaust system damage. Your ve-
hicle’s powertrain control systems can detect and store
information about vehicle modifications that increase
horsepower and torque output such as whether or not
performance-enhancing powertrain components, com-
monly referred to as downloaders, power boxes, or
performance chips have been used.
•Any chassis/suspension or tire size modifications to the
vehicle will effect the performance of the Adaptive
Cruise Control and Forward Collision Warning System.
4 INTRODUCTION

This information cannot be erased and will stay in the
system’s memory even if the modification is removed. This
information can be retrieved by FCA US LLC, and service
and repair facilities, when servicing your vehicle. This
information may be used to determine if repair will be
covered by New Vehicle Limited Warranty.
There is a probability that the use of a “performance chip”
will prohibit the engine from starting. In this instance, the
vehicle will need to be serviced by a authorized dealer in
order to return the vehicle to it’s factory settings.
When it comes to service, remember that your authorized
dealer knows your Jeep® vehicle best, has factory-trained
technicians and genuine MOPAR® parts, and cares about
your satisfaction.
1
INTRODUCTION 5

GETTING TO KNOW YOUR VEHICLE
CONTENTS
䡵REMOTE STARTING SYSTEM ................8 ▫How To Use Remote Start ..................8
2

REMOTE STARTING SYSTEM
This system uses the key fob to start the engine
conveniently from outside the vehicle while still
maintaining security. The system has a range of
approximately 300 ft (91 m).
NOTE:
•The vehicle must be equipped with an automatic trans-
mission to be equipped with Remote Start.
•Obstructions between the vehicle and the key fob may
reduce this range.
•The Remote Start system will wait for the “Wait To Start”
amber telltale to extinguish before cranking the engine.
This allows time for the engine pre-heat cycle to pre-heat
the cylinder air, and is normal in cold weather. Refer to
“Warning And Indicator Lights” in “Getting To Know
Your Instrument Panel” in the Owner’s Manual at
www.mopar.com/en-us/care/owner-manual.html (U.S.
Residents) or www.owners.mopar.ca (Canadian Resi-
dents) for further information.
How To Use Remote Start
All of the following conditions must be met before the
engine will remote start.
•Gear selector in PARK
•Doors closed
•Hood closed
•HAZARD switch off
•BRAKE switch inactive (brake pedal not pushed)
•Battery at an acceptable charge level
•PANIC button not pushed
•Fuel meets minimum requirement
•System not disabled from previous remote start event
•Vehicle security alarm not active
•Water In Fuel Indicator Light is not illuminated
•“Wait To Start” telltale is not illuminated
8 GETTING TO KNOW YOUR VEHICLE

WARNING!
•Do not start or run an engine in a closed garage or
confined area. Exhaust gas contains Carbon Monox-
ide (CO) which is odorless and colorless. Carbon
Monoxide is poisonous and can cause serious injury
or death when inhaled.
•Keep key fobs away from children. Operation of the
Remote Start System, windows, door locks or other
controls could cause serious injury or death.
2
GETTING TO KNOW YOUR VEHICLE 9

GETTING TO KNOW YOUR INSTRUMENT PANEL
CONTENTS
䡵INSTRUMENT CLUSTER ...................12
䡵INSTRUMENT CLUSTER DISPLAY ............13
▫Diesel Displays .........................14
▫Fuel Filter Life Reset .....................14
▫Diesel Displays .........................15
▫Diesel Particulate Filter (DPF) Messages .......15
▫Diesel Exhaust Fluid (DEF) Warning Messages . . .17
▫Diesel Exhaust Fluid (DEF) Fault Warning
Messages .............................18
䡵WARNING LIGHTS AND MESSAGES ..........19
▫Yellow Indicator Lights ...................19
3

INSTRUMENT CLUSTER
1. Tachometer
•Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Instrument Cluster Display Menu
•The instrument cluster display features a driver-
interactive display. Refer to “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument Panel”.
3. Speedometer
•Indicates vehicle speed.
Instrument Cluster
12 GETTING TO KNOW YOUR INSTRUMENT PANEL

4. Temperature Gauge
•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
•The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather or up mountain
grades. It should not be allowed to exceed the upper
limits of the normal operating range.
WARNING!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reaches “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the gauge drops back
into the normal range and is no longer red. If the gauge
remains on the “H”, turn the engine off immediately
and call an authorized dealer for service.
CAUTION!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
(Continued)
CAUTION! (Continued)
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle”. Follow the warnings under the Cooling System
Pressure Cap paragraph.
5. Fuel Gauge
•The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
NOTE: The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
INSTRUMENT CLUSTER DISPLAY
Your vehicle is equipped with an instrument cluster dis-
play, which offers useful information to the driver. With the
ignition in the STOP/OFF position, opening/closing of a
door will activate the display for viewing, and display the
total miles or kilometers in the odometer.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 13

Diesel Displays
When the appropriate conditions exist, the following mes-
sages display in the instrument cluster display:
•Exhaust Filter Nearing Full Safely Drive at Highway
Speeds to Clear
•Exhaust Filter Full – Power Reduced See Dealer
•Exhaust System Service Required – See Dealer
•Exhaust System – Filter XX% Full Service Required See
Dealer
•Exhaust System Regeneration in Process Continue Driv-
ing
•Exhaust System – Regeneration Completed
•Engine Will Not Restart in XXXX mi DEF Low Refill
Soon
•Engine Will Not Restart in XXXX mi Refill DEF
•Engine Will Not Start Refill DEF
•Service DEF System See Dealer
•Incorrect DEF Detected See Dealer
•Engine Will Not Restart in XXX mi Service DEF See
Dealer
•Engine Will Not Restart Service DEF System See Dealer
•Engine Will Not Start Service DEF System See Dealer
Fuel Filter Life Reset
The cluster will display the “Fuel System Service Required
– See Dealer” or “Service Fuel Filter” message when the
fuel filter maintenance life is less than 5%. To verify if this
is a fuel filter change event, go to the “Fuel Filter Life”
screen in the “Vehicle Info” menu. When this message
appears, dealers should replace the fuel filters.
NOTE: Use the steering wheel display controls for the
following procedure(s)
1. Without pushing the brake pedal, cycle the ignition to
the ON/RUN position (do not start the engine.)
2. Push and release the down arrow button to scroll
downward through the main menu to “Vehicle Info.”
3. Push and release the right arrow button to access the
”Fuel Filter Life” screen.
4. Push and hold the OK button for one second to access
the ”Fuel Filter Life Reset” screen.
14 GETTING TO KNOW YOUR INSTRUMENT PANEL

5. Push and release the down arrow button to select “Yes,”
then push and release the OK button to select reset of
the Fuel Filter Life.
6. Push and release the up arrow button to exit the
instrument cluster display screen.
NOTE: If the indicator message illuminates when you
start the vehicle, the fuel filter indicator system did not
reset. If necessary, repeat this procedure.
Diesel Displays
When the appropriate conditions exist, the following mes-
sages display in the instrument cluster display:
•Exhaust Filter Nearing Full Safely Drive at Highway
Speeds to Clear
•Exhaust Filter Full – Power Reduced See Dealer
•Exhaust System Service Required – See Dealer
•Exhaust System – Filter XX% Full Service Required See
Dealer
•Exhaust System Regeneration in Process Continue Driv-
ing
•Exhaust System – Regeneration Completed
•Engine Will Not Restart in XXXX mi DEF Low Refill
Soon
•Engine Will Not Restart in XXXX mi Refill DEF
•Engine Will Not Start Refill DEF
•Service DEF System See Dealer
•Incorrect DEF Detected See Dealer
•Engine Will Not Restart in XXX mi Service DEF See
Dealer
•Engine Will Not Restart Service DEF System See Dealer
•Engine Will Not Start Service DEF System See Dealer
Diesel Particulate Filter (DPF) Messages
This engine meets all required diesel engine emissions
standards. To achieve these emissions standards, your
vehicle is equipped with a state-of-the-art engine and
exhaust system. These systems are seamlessly integrated
into your vehicle and managed by the Powertrain Control
Module (PCM). The PCM manages engine combustion to
allow the exhaust system’s catalyst to trap and burn
Particulate Matter (PM) pollutants, with no input or inter-
action on your part.
3
GETTING TO KNOW YOUR INSTRUMENT PANEL 15

WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be grass
or leaves coming into contact with your exhaust sys-
tem. Do not park or operate your vehicle in areas where
your exhaust system can contact anything that can
burn.
Your vehicle has the ability to alert you to additional
maintenance required on your vehicle or engine. Refer to
the following messages that may be displayed on your
instrument cluster display:
•Exhaust Filter Nearing Full Safely Drive at Highway
Speeds to Clear — This message will be displayed if the
exhaust particulate filter reaches 80% of its maximum
storage capacity. Under conditions of exclusive short
duration and low speed driving cycles, your diesel
engine and exhaust after-treatment system may never
reach the conditions required to cleanse the filter to
remove the trapped PM. If this occurs, the “Exhaust
Filter XX% Full Safely Drive at Highway Speeds to
Remedy” message will be displayed. If this message is
displayed, you will hear one chime to assist in alerting
you of this condition. By simply driving your vehicle at
highway speeds for up to 20 minutes, you can remedy
the condition in the particulate filter system and allow
your diesel engine and exhaust after-treatment system to
cleanse the filter to remove the trapped PM and restore
the system to normal operating condition.
•Exhaust System Regeneration in Process Continue
Driving — This message indicates that the Diesel Par-
ticulate Filter (DPF) is self-cleaning. Maintain your cur-
rent driving condition until regeneration is completed.
•Exhaust System — Regeneration Completed — This
message indicates that the Diesel Particulate Filter (DPF)
self-cleaning is completed. If this message is displayed,
you will hear one chime to assist in alerting you of this
condition.
•Exhaust System Service Required — See Dealer — This
messages indicates regeneration has been disabled due
to a system malfunction. At this point the engine Pow-
ertrain Control Module (PCM) will register a fault code,
the instrument panel will display a MIL light.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
16 GETTING TO KNOW YOUR INSTRUMENT PANEL

•Exhaust Filter Full — Power Reduced See Dealer —
This message indicates the PCM has derated the engine
to limit the likelihood of permanent damage to the
after-treatment system. If this condition is not corrected
and a dealer service is not performed, extensive exhaust
after-treatment damage can occur. To correct this condi-
tion it will be necessary to have your vehicle serviced by
your local authorized dealer.
NOTE: Failing to follow the oil change indicator, changing
your oil and resetting the oil change indicator by 0 miles
remaining will prevent the diesel exhaust filter from per-
forming it’s cleaning routine. This will shortly result in a
Malfunction Indicator Light (MIL) and reduced engine
power. Only an authorized dealer will be able to correct
this condition.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages when
the DEF level reaches a driving range of approximately
500 miles. If the following warning message sequence is
ignored, your vehicle may not restart unless DEF is added
within the displayed mileage shown in the 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
displayed during vehicle start up with the current
allowed mileage and accompanied by a single chime.
The remaining mileage can be pulled up anytime by way
of the “Messages” list within the 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 required with in the displayed
mileage. The message will be displayed 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 accompany the
75, 50 and 25 mile remaining distances. The DEF Low
telltale will be on continuously until DEF fluid is topped
off.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 17

•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 displayed during vehicle
start up, and it will be accompanied by a single chime.
The DEF Low telltale will be illuminated continuously
until DEF fluid tank is filled with a minimum of two
gallons of DEF.
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are different messages which are displayed 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 message 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.
See an authorized dealer to have the 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 message.
•Incorrect DEF Detected See Dealer — This message will
display if the DEF system has detected the incorrect
fluid has been introduced to the DEF tank. The message
will be accompanied by a single chime. See an autho-
rized dealer to have the vehicle serviced immediately. 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 displayed if the fault
detected is not serviced after 30 miles of operation. It is
also displayed at 250 miles 186 miles and 124 miles.
System service is required within the displayed mileage.
The message will appear in the display during vehicle
start up with an updated distance mileage, and it will be
accompanied by a single chime. Starting at 124 miles,
remaining range will be continuously displayed while
operating the vehicle. Chimes will also accompany the
75, 50 and 25 mile remaining distances. See an autho-
rized dealer to have the vehicle serviced 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
18 GETTING TO KNOW YOUR INSTRUMENT PANEL

when under 1 mile until engine will not start and each
time the vehicle is started, and will be continuously
displayed. The message will be accompanied by a single
chime. Your Malfunction Indicator Light will be continu-
ously illumined. See an 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
your vehicle is serviced by your authorized dealer. The
message will be accompanied by a single chime. Your
Malfunction Indicator Light will be continuously illumi-
nated. If the message appears and you can not start the
engine, see an authorized dealer to have the vehicle
serviced immediately.
NOTE:
•The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
an authorized dealer for service.
•The DEF gauge may also not immediately update after a
refill if the temperature of the DEF fluid is below 12F
(-11C). The DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update after a period
of run time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill level for
several drives.
WARNING LIGHTS AND MESSAGES
Yellow Indicator Lights
— Low Diesel Exhaust Fluid (DEF) Indicator
Light — If Equipped
The Low Diesel Exhaust Fluid (DEF) Indicator will illumi-
nate if the vehicle is low on Diesel Exhaust Fluid (DEF).
Refer to “Starting And Operating” for further information.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 19