fuel JEEP GRAND CHEROKEE 2017 WK2 / 4.G Owner's Manual

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 automatic transmis-
sion 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
government 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 drivable
and not need towing, see your authorized
dealer for service as soon as possible.
CAUTION!
• Prolonged driving with the MIL on couldcause further damage to the emission
control system. It could also affect fuel
economy and driveability. The vehicle
must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the engine is
running, severe catalytic converter dam-
age and power loss will soon occur. Im-
mediate service is required.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (OBD II) and a connection
port to allow access to information related to
the performance of your emissions controls.
Authorized service technicians may need to
access this information to assist with the
diagnosis and service of your vehicle and
emissions system.
WARNING!
• ONLY an authorized service technicianshould connect equipment to the OBD II
connection port in order to diagnose or
service your vehicle.
• If unauthorized equipment is connected
to the OBD II connection port, such as a
driver-behavior tracking device, it may:• Be possible that vehicle systems,
including safety related systems,
could be impaired or a loss of ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
• Access, or allow others to access,
information stored in your vehicle
systems, including personal infor-
mation.
For further information, refer to “Privacy
Practices” and “Uconnect CyberSecurity” in
“All About Uconnect Access” in your Owner’s
Manual Radio Supplement and “Cybersecu-
rity” in “Multimedia” in your Owner's Manual
at www.jeep.com/en/owners/manuals/.
89

Monitoring Telltale Light will turn OFF only
after the tires have been inflated to the vehi-
cle’s recommended cold tire pressure value.
CAUTION!
• The TPMS has been optimized for theoriginal equipment tires and wheels.
TPMS pressures and warnings have
been established for the tire size
equipped on your vehicle. Undesirable
system operation or sensor damage may
result when using replacement equip-
ment that is not of the same size, type,
and/or style. Aftermarket wheels can
cause sensor damage. Using aftermar-
ket tire sealants may cause the Tire Pres-
sure Monitoring System (TPMS) sensor
to become inoperable. After using an
aftermarket tire sealant it is recom-
mended that you take your vehicle to an
authorized dealership to have your sen-
sor function checked.
• After inspecting or adjusting the tire
pressure, always reinstall the valve stem
cap. This will prevent moisture and dirt
from entering the valve stem, which
CAUTION!
could damage the Tire Pressure Monitor-
ing Sensor.
NOTE:
• The TPMS is not intended to replace nor- mal tire care and maintenance, or to pro-
vide warning of a tire failure or condition.
• The TPMS should not be used as a tire pressure gauge while adjusting your tire
pressure.
• Driving on a significantly under-inflated tire causes the tire to overheat and can
lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability.
• The TPMS is not a substitute for proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pres-
sure using an accurate tire gauge, even if
under-inflation has not reached the level
to trigger illumination of the Tire Pressure
Monitoring Telltale Light. • Seasonal temperature changes will affect
tire pressure, and the TPMS will monitor
the actual tire pressure in the tire.
Premium System
The Tire Pressure Monitor System (TPMS)
uses wireless technology with wheel rim-
mounted electronic sensors to monitor tire
pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire
pressure readings to the Receiver Module.
Tire Pressure Monitor Display
SAFETY
108

If A Deployment Occurs
The front air bags are designed to deflate
immediately after deployment.
NOTE:
Front and/or side air bags will not deploy in
all collisions. This does not mean something
is wrong with the air bag system.
If you do have a collision which deploys the
air bags, any or all of the following may occur:
• The air bag material may sometimes causeabrasions and/or skin reddening to the
occupants as the air bags deploy and un-
fold. The abrasions are similar to friction
rope burns or those you might get sliding
along a carpet or gymnasium floor. They
are not caused by contact with chemicals.
They are not permanent and normally heal
quickly. However, if you haven’t healed
significantly within a few days, or if you
have any blistering, see your doctor imme-
diately.
• As the air bags deflate, you may see some smoke-like particles. The particles are a
normal by-product of the process that gen-
erates the non-toxic gas used for air bag
inflation. These airborne particles may ir- ritate the skin, eyes, nose, or throat. If you
have skin or eye irritation, rinse the area
with cool water. For nose or throat irrita-
tion, move to fresh air. If the irritation
continues, see your doctor. If these par-
ticles settle on your clothing, follow the
garment manufacturer’s instructions for
cleaning.
Do not drive your vehicle after the air bags
have deployed. If you are involved in another
collision, the air bags will not be in place to
protect you.
WARNING!
Deployed air bags and seat belt preten-
sioners cannot protect you in another col-
lision. Have the air bags, seat belt preten-
sioners, and the seat belt retractor
assemblies replaced by an authorized
dealer immediately. Also, have the Occu-
pant Restraint Controller System serviced
as well. NOTE:
• Air bag covers may not be obvious in the
interior trim, but they will open during air
bag deployment.
• After any collision, the vehicle should be taken to an authorized dealer
immediately.
Enhanced Accident Response System
In the event of an impact, if the communica-
tion network remains intact, and the power
remains intact, depending on the nature of
the event, the ORC will determine whether to
have the Enhanced Accident Response Sys-
tem perform the following functions:
• Cut off fuel to the engine.
• Flash hazard lights as long as the batteryhas power or until the hazard light button
is pressed. The hazard lights can be deac-
tivated by pressing the hazard light but-
ton.
• Turn on the interior lights, which remain on as long as the battery has power.
• Unlock the power door locks.
SAFETY
128

Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident Re-
sponse System functions after an event, the
ignition switch must be changed from igni-
tion START or ON/RUN to ignition OFF. Care-
fully 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 bagsystem 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 right side of the in-
strument panel. Do not modify the front
bumper, vehicle body structure, or add
aftermarket side steps or running
boards.
WARNING!
• It is dangerous to try to repair any part ofthe air bag system yourself. Be sure to
tell anyone who works on your vehicle
that it has an air bag system.
• Do not attempt to modify any part of your
air bag system. The air bag may inflate
accidentally or may not function prop-
erly if modifications are made. Take your
vehicle to an authorized dealer for any
air bag system service. If your seat, in-
cluding your trim cover and cushion,
needs to be serviced in any way (includ-
ing removal or loosening/tightening of
seat attachment bolts), take the vehicle
to your authorized dealer. Only manufac-
turer approved seat accessories may be
used. If it is necessary to modify the air
bag system for persons with disabilities,
contact your authorized dealer.
Event Data Recorder (EDR)
This vehicle is equipped with an event data
recorder (EDR). The main purpose of an EDR
is to record, in certain crash or near crash-like
situations, such as an air bag deployment or hitting a road obstacle, data that will assist in
understanding how a vehicle’s systems per-
formed. The EDR is designed to record data
related to vehicle dynamics and safety sys-
tems for a short period of time, typically
30 seconds or less. The EDR in this vehicle is
designed to record such data as:
• How various systems in your vehicle were
operating;
• Whether or not the driver and passenger safety belts were buckled/fastened;
• How far (if at all) the driver was depressing the accelerator and/or brake pedal; and,
• How fast the vehicle was traveling.
• These data can help provide a better un- derstanding of the circumstances in which
crashes and injuries occur.
129

WARNING!
clutch pedal (if present) to check for
interference. If your floor mat interferes
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.
• 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
WARNING!
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 lock-
ing.
Fluid Leaks
Check area under vehicle after overnight
parking for fuel, engine coolant, oil, or other
fluid leaks. Also, if gasoline fumes are de-
tected or if fuel, power steering fluid (if
equipped), or brake fluid leaks are sus-
pected. The cause should be located and
corrected immediately.
145

STARTING AND OPERATING
STARTING PROCEDURES — GASO-
LINEENGINES..............149
Normal Starting...............149
Cold Weather Operation (Below –22°F Or
−30°C) ....................150
After Starting .................150
If Engine Fails To Start ..........150
After Starting .................150
STARTING PROCEDURES — DIESEL
ENGINES................. .150
Automatic Transmission..........151
Extreme Cold Weather ...........151
Normal Starting Procedure — Keyless
Enter-N-Go ..................152
Starting Fluids ................152
STOP/START SYSTEM — IF
EQUIPPED................ .153
Automatic Mode..............153
Possible Reasons The Engine Does Not
Autostop ...................153
To Start The Engine While In Autostop
Mode .....................154 To Manually Turn Off The Stop/Start
System
....................154
To Manually Turn On The Stop/Start
System ....................155
ENGINE BREAK-IN RECOMMENDA-
TIONS................... .155
3.6L & 5.7L Engines............155
Diesel Engines ................156
SRT Engines .................156
AUTOMATIC TRANSMISSION . . .157
Ignition Park Interlock ...........158
Brake/Transmission Shift Interlock
System ....................158
Fuel Economy (ECO) Mode ........158
Eight–Speed Automatic Transmission . .159
SPORT MODE — IF EQUIPPED . .161
FOUR WHEEL DRIVE
OPERATION............... .161
Quadra-Trac I Operating Instructions/
Precautions — If Equipped........161
Quadra-Trac II Operating Instructions/
Precautions — If Equipped ........162Shift Positions
................162
Shifting Procedures .............163
Quadra-Drive II System — If Equipped .165
QUADRA-LIFT — IF EQUIPPED . .166
Description .................166
Air Suspension Modes ...........168
Instrument Cluster Display Messages . .168
Operation ..................168
SELEC-TERRAIN — IF
EQUIPPED................ .170
Selec-Terrain Mode Selection.......170
Instrument Cluster Display Messages . .171
SELEC-TRACK — IF EQUIPPED
(SRT).................... .171
Custom....................171
Active Damping System ..........172
ELECTRONIC SPEED CONTROL .172
Activation...................173
Setting A Desired Speed .........173
Varying The Speed .............173
Resume Speed ...............174
STARTING AND OPERATING
147

Accelerating For Passing.........174
Deactivation .................174
ADAPTIVE CRUISE CONTROL
(ACC) ................... .174
Activation..................175
Setting A Desired Speed ..........175
Varying The Speed .............175
To Resume ..................177
Deactivation .................177
Setting The Following Distance ......177
Changing Modes ..............177
PARKSENSE REAR PARK
ASSIST .................. .179
ParkSense Sensors.............179
Activation/Deactivation ParkSense . . . .179
Instrument Cluster Display ........179
ParkSense System Usage Precautions . .179
PARKSENSE FRONT AND REAR
PARKASSIST.............. .180
Sensors....................180
Activation/Deactivation ...........181
Engagement/Disengagement .......181Operation With A Trailer
..........182
General Warnings ..............182
PARKSENSE ACTIVE PARK ASSIST
SYSTEM — IF EQUIPPED ......182
LANESENSE............... .183
LaneSense Operation............183
Turning LaneSense ON Or OFF ......184
LaneSense Warning Message .......184
Changing LaneSense Status ........185
PARKVIEW REAR BACK-UP CAM-
ERA .................... .185
Symbols And Messages On The Display .185
REFUELING THE VEHICLE.....186
Emergency Fuel Filler Door Release . . .187
REFUELING THE VEHICLE — DIE-
SELENGINE............... .188
Avoid Using Contaminated Fuel.....190
Bulk Fuel Storage — Diesel Fuel . . . .190
Diesel Exhaust Fluid ............190
Diesel Exhaust Fluid Storage .......191
Adding Diesel Exhaust Fluid .......191
TRAILER TOWING...........193
Trailer Towing Weights (Maximum Trailer
Weight Ratings) — Non SRT .......193
Trailer Towing Weights (Maximum Trailer
Weight Ratings) — Diesel .........194
Trailer Towing Weights (Maximum Trailer
Weight Ratings) — SRT ..........195
Trailer Hitch Receiver Cover Removal
(Summit Models) — If Equipped .....195
Trailer Hitch Receiver Cover Removal (SRT
Models) — If Equipped ..........196
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) .........198
Towing This Vehicle Behind Another
Vehicle....................198
Recreational Towing-Two Wheel Drive
Models ....................199
Recreational Towing — Quadra-Trac I
(Single-Speed Transfer Case) Four-Wheel
Drive Models ................199
Recreational Towing — Quadra–Trac
II/Quadra–Drive II Four-Wheel Drive
Models ....................199STARTING AND OPERATING
148

NOTE:
If the ignition is left in the ACC or RUN
(engine not running) mode and the transmis-
sion is in PARK, the system will automatically
time out after 30 minutes of inactivity and
the ignition will cycle to the OFF mode.
ENGINE START/STOP Button Functions — With
Driver’s Foot OFF The Brake Pedal (In PARK Or
NEUTRAL Position)
The ENGINE START/STOP button operates
similar to an ignition switch. It has four
modes, OFF, ACC, RUN and START. To
change the ignition modes without starting
the vehicle and use the accessories follow
these steps:
• Starting with the ignition in the OFF mode,
• Push the ENGINE START/STOP buttononce to place the ignition to the ACC mode
(instrument cluster will display “ACC”),
• Push the ENGINE START/STOP button a second time to place the ignition to the
RUN mode (instrument cluster will display
“ON/RUN”), • Push the ENGINE START/STOP button a
third time to return the ignition to the OFF
mode (instrument cluster will display
“OFF”).
Cold Weather Operation (Below –22°F Or
−30°C)
To ensure reliable starting at these tempera-
tures, use of an externally powered electric
engine block heater (available from your Au-
thorized Dealer) is recommended.
After Starting
The idle speed is controlled automatically,
and it will decrease as the engine warms up.
If Engine Fails To Start
WARNING!
• Never pour fuel or other flammable liq-uid into the throttle body air inlet open-
ing in an attempt to start the vehicle.
This could result in flash fire causing
serious personal injury.
• Do not attempt to push or tow your
vehicle to get it started. Vehicles
WARNING!
equipped with an automatic transmis-
sion cannot be started this way. Un-
burned fuel could enter the catalytic
converter and once the engine has
started, ignite and damage the converter
and vehicle.
• If the vehicle has a discharged battery,
booster cables may be used to obtain a
start from a booster battery or the battery
in another vehicle. This type of start can
be dangerous if done improperly. Refer
to “Jump-Starting” in “In Case Of Emer-
gency” for further information.
After Starting
The idle speed is controlled automatically,
and it will decrease as the engine warms up.
STARTING PROCEDURES —
DIESEL ENGINES
Before starting your vehicle, adjust your seat,
both inside and outside mirrors, and fasten
your seat belts.
STARTING AND OPERATING
150

The starter is allowed to crank for up to
30-second intervals. Waiting a few minutes
between such intervals will protect the starter
from overheating.
WARNING!
• Before exiting a vehicle, always shift theautomatic transmission into PARK and
apply the parking brake. Always make
sure the keyless ignition node is in the
“OFF” mode, remove the key fob from
the vehicle and lock the vehicle.
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Leaving children in a vehicle unattended
is dangerous for a number of reasons. A
child or others could be seriously or
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
WARNING!
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”
CAUTION!
in “Servicing And Maintenance” for fur-
ther information.
Automatic Transmission
Start the engine with the transmission gear
selector in the PARK position. Apply the
brake before shifting to any driving range.
Extreme Cold Weather
The engine block heater is a resistance heater
installed in the water jacket of the engine. It
requires a 110–115 Volt AC electrical outlet
with a grounded, three-wire extension cord.
Its use is recommended for environments
that routinely fall below -10°F (-23°C). It
should be used when the vehicle has not been
running overnight or longer periods and
should be plugged in two hours prior to start.
Its use is required for cold starts with tem-
peratures under -20°F (-28°C).
151

NOTE:
The engine block heater cord is a factory
installed option. If your vehicle is not
equipped, heater cords are available from
your authorized MOPAR dealer.
• A 12 Volt heater built into the fuel filterhousing aids in preventing fuel gelling. It is
controlled by a built-in thermostat.
• A Diesel Pre-Heat system both improves engine starting and reduces the amount of
white smoke generated by a warming
engine.
Normal Starting Procedure — Keyless
Enter-N-Go
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 the 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” for further
information.
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.
Starting Fluids
The engine is equipped with a glow plug
preheating system. If the instructions in this
manual are followed, the engine should start
in all conditions and no type of starting fluid
should be used.
WARNING!
• Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build up may cause serious injury
or death.
• When leaving the vehicle, always make
sure the keyless ignition node is in the
“OFF” mode, remove the key fob from
the vehicle and lock the vehicle.
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Allowing children to be in a vehicle un-
attended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the gear selector.
STARTING AND OPERATING
152