2016 JEEP GRAND CHEROKEE service

DIESEL FUEL FILTERS/WATER SEPARATOR
Draining Fuel/Water Separator
If the “Water in Fuel” indicator light
is illuminated and an audible chime
is heard five times, you should stop the
engine and drain the water from the sepa-
rator.
The best access to this water drain valve
is from under the vehicle.
The drain valve is located on the bottom
of the Fuel Filter and Water Separator
assembly which is located on the left side
of the vehicle in front of the fuel tank.
1. Loosen the drain valve (located on the bottom of the filter assembly) then
turn the ignition switch to the ON/
RUN position to allow any accumu-
lated water to drain.
2. When clean fuel is visible, close the drain and switch the ignition to the OFF position.
Refer to the Diesel Supplement on the DVD for further details.
Fuel Filter Replacement
1. Ensure engine is turned off.
2. Place drain pan under the fuel filter assembly.
3. Open the water drain valve, and let any accumulated water drain.
4. Close the water drain valve.
5. Remove using a socket. Rotate counterclockwise for removal.
6. Remove the used filter cartridge from the housing and dispose of according to your local regulations.
7. Wipe clean the sealing surfaces of the lid and housing.
8. Lubricate o-ring on new filter with clean engine oil.
9. Repeat steps 5 through 8 to service second filter in fuel filter assembly.
Fuel Filter And Water Separator Assembly
1 — Fuel Filter Access
2 — Water In Fuel Drain
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Exhaust Service Required — See Dealer Now
This message indicates regeneration has been disabled due to a system malfunction.
The Powertrain control Module (PCM) will register a fault code and the instrument
panel will display the Malfunction Indicator Light (MIL).
CAUTION!
See your authorized dealer, as damage to the exhaust system could occur soon
with continued operation.
Exhaust Filter Full — Power Reduced See Dealer
The PCM derates the engine in order 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. 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
performing 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 with the
exhaust filter full.
DIESEL EXHAUST FLUID
Diesel Exhaust Fluid (DEF) sometimes known simply by the name of its active
component, UREA – is a key component of selective catalytic reduction (SCR)
systems, which help diesel vehicles meet stringent emission regulations. DEF is a
liquid reducing agent that reacts with engine exhaust in the presence of a catalyst to
convert smog-forming nitrogen oxides (NOx) into harmless nitrogen and water vapor.
Your vehicle is equipped with a Selective Catalytic Reduction system in order to meet
the very stringent diesel emissions standards required by the Environmental Protec-
tion Agency. Selective Catalytic Reduction (SCR) is the first and only technology in
decades to be as good for the environment as it is good for business and vehicle
performance.
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Adding Diesel Exhaust Fluid
The DEF gauge (located in the DID) will display the level of DEF remaining in the
tank.
Completely fill the DEF tank through the diesel exhaust fluid fill location (located
behind the fuel door) at every maintenance interval or before if prompted by the
Driver Information Display (DID).
NOTE:
• The gauge may take up to five seconds to update after adding a gallon or more ofDiesel 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 your 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.
NOTE:
• Driving conditions (altitude, vehicle speed, load, etc.) will effect the
amount of DEF that is used in your
vehicle.
• Since DEF will begin to freeze at 12°F (-11°C), your vehicle is equipped with
an automatic DEF heating system.
This allows the DEF injection system to
operate properly at temperatures be-
low 12°F (-11°C).
DEF Filler Cap And Fuel Fill
1 — Diesel Fuel Filler
2 — Diesel Exhaust Fluid Filler
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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 with in the displayed
mileage shown in the DID 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 in the DID 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 DID
• 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 in the DID
during vehicle start up with an updated distance mileage, and it will be accom-
panied 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.
• 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 in the DID 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. We recom-
mend 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 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. 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 XXX mi Service DEF See
dealer warning stage and message.
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•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 be displayed in the DID 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. We recommend you drive to your nearest authorized
dealer and have your 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 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. 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 Malfunction Indicator Light
will be continuously illuminated. If the message appears and you can not start the
engine, we recommend you have your vehicle towed to your nearest authorized
dealer 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 your 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.
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ROADSIDE ASSISTANCE
Dial toll-free 1-800-521-2779 for U.S. Residents or 1-800-363-4869 for Canadian
Residents.
• Provide your name, vehicle identification number, license plate number, and yourlocation, including the telephone number from which you are calling.
• Briefly describe the nature of the problem and answer a few simple questions.
• You will be given the name of the service provider and an estimated time of arrival. If you feel you are in an “unsafe situation”, please let us know. With your consent,
we will contact local police or safety authorities.
INSTRUMENT CLUSTER WARNING LIGHTS
– Battery Charge Warning Light
This light illuminates when the battery is not charging properly. If the battery charge
warning light remains on, it means that the vehicle is experiencing a problem with the
charging system.
We recommend you do not continue driving if it is on. Have the vehicle serviced
immediately.
– Oil Pressure Warning Light
This light indicates 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 for four
minutes when this light turns on.
We recommend you do not operate the vehicle or engine damage will occur. Have the
vehicle serviced immediately.
– Engine Temperature Warning Light
This light warns of an overheated engine condition.
If the light turns on and a warning chime sounds 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 normal,
turn the engine off immediately.
We recommend that you do not operate the vehicle or engine damage will occur. Have
the vehicle serviced immediately.
WARNING!
A hot engine cooling system is dangerous. You or others could be badly burned by
steam or boiling coolant.
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– Transmission Temperature Warning Light
This light indicates that there is excessive transmission fluid temperature that might
occur with severe usage such as trailer towing. If this light turns on, stop the vehicle
and run the engine at idle, with the transmission in NEUTRAL, until the light turns
off. Once the light turns off, you may continue to drive normally.
CAUTION!
Continuous driving with the Transmission Temperature Warning Light illuminated
will eventually cause severe transmission damage or transmission failure.
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.
– Anti-Lock Brake (ABS) Light
This light monitors the Anti-Lock Brake System (ABS). The light will turn on when the
ignition switch is turned to the ON/RUN position and may stay on for as long as four
seconds.
If the ABS light remains on or turns on while driving, it indicates that the Anti-Lock
portion of the brake system is not functioning and that service is required. However,
the conventional brake system will continue to operate normally if the BRAKE
warning light is not on.
If the ABS light is on, the brake system should be serviced as soon as possible to
restore the benefits of Anti-Lock brakes. If the ABS light does not turn on when the
ignition switch is turned to the ON/RUN position, have the light inspected by an
authorized dealer.
– Air Bag Warning Light
This light will turn on for four to eight seconds as a bulb check when the ignition
switch is first turned to the ON/RUN position. If the light is either not on during
starting, stays on, or turns on while driving, have the system inspected at an
authorized dealer as soon as possible. Refer to “Occupant Restraints” in “Things To
Know Before Starting Your Vehicle” in your Owner’s Manual on the DVD for further
information.
NOTE:
The Air Bag System is designed to be maintenance free.
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– Electronic Throttle Control (ETC) Light
This light informs you of a problem with the Electronic Throttle Control (ETC) system.
If a problem is detected, the light will come on while the engine is running. Cycle the
ignition when the vehicle has completely stopped and the gear selector is placed in
the PARK position; the light should turn off.
If the light remains lit with the engine running, your vehicle will usually be drivable;
however, see an authorized service center immediately. If the light is flashing when
the engine is running, immediate service is required and you may experience reduced
performance, an elevated/rough idle or engine stall and your vehicle may require
towing.
– Tire Pressure Monitoring System (TPMS) Light
Each tire, including the spare (if provided), should be checked monthly, when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle placard or tire inflation pressure
label, you should determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a Tire Pressure
Monitoring System (TPMS) which display in the Electronic Vehicle Information
Center (EVIC) or Driver Information Display (DID) when one or more of your tires is
significantly under-inflated. Accordingly, when the low tire pressure EVIC or DID
display illuminates, you should stop and check your tires as soon as possible, and
inflate them to the proper 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.
IF THE LIGHT STARTS FLASHING INDICATING A LOW TIRE PRESSURE, ADJUST THE AIR
PRESSURE IN THE LOW TIRE TO THE AIR PRESSURE SHOWN ON THE VEHICLE PLACARD OR
TIRE INFLATION PRESSURE LABEL LOCATED ON THE DRIVER'S DOOR.
NOTE:
After inflation, the vehicle may need to be driven for 20 minutes before the flashing light
will turn off.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is
the driver’s responsibility to maintain correct tire pressure, even if under-inflation
has not reached the level to trigger illumination of the TPMS low EVIC or DID display.
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