2016 JEEP GRAND CHEROKEE Diesel Supplement Manual

1. Without pushing the brake pedal, cycle the ignition tothe ON/RUN position (do not start the engine.)
2.
Push and release the DOWNarrow button to scroll
downward through the main menu to “Vehicle
Info.”
3. Push and release the RIGHTarrow button to
access the ”Fuel Filter Life” screen.
4. Push and hold the OKbutton for one second to access
the ”Fuel Filter Life Reset” screen.
5. Push and release the DOWN
arrow button to
select “Yes,” then push and release the OKbutton
to select reset of the Fuel Filter Life.
6. Push and release the UParrow button to exit the
DID 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 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 Con-
trol Module (PCM). The PCM manages engine combus-
tion to allow the exhaust system’s catalyst to trap and
burn Particulate Matter (PM) pollutants, with no input or
interaction on your part.
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
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
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UNDERSTANDING YOUR INSTRUMENT PANEL 23

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
Driver Information Display (DID):
•Exhaust Filter Nearing Full Safely Drive at Highway
Speeds to Clear — This message will be displayed on
the Driver Information Display (DID) 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 in the DID. 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
Particulate Filter (DPF) is self-cleaning. Maintain your
current driving condition until regeneration is com-
pleted.
• 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.
24 UNDERSTANDING YOUR INSTRUMENT PANEL

•Exhaust System Service Required - See Dealer —
This messages indicates regeneration has been disabled
due to a system malfunction. At this point the engine
Powertrain 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.
• 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, exten-
sive exhaust after-treatment damage can occur. To
correct this condition it will be necessary to have your
vehicle serviced by your local authorized dealer. NOTE:
Failing to follow the oil change indicator, chang-
ing 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 re-
duced 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.
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UNDERSTANDING YOUR INSTRUMENT PANEL 25

Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages
when the DEF level reaches a driving range of approxi-
mately 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 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.
• 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 illumi-
nated continuously until DEF fluid tank is filled with a
minimum of two gallons of DEF.
26 UNDERSTANDING YOUR INSTRUMENT PANEL

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 accom-
panied by a single chime and the Malfunction Indica-
tor 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 message. •
Incorrect DEF Detected See Dealer — This message
will display if the DEF system has detected the incor-
rect 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.
• 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 mile-
age. 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
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UNDERSTANDING YOUR INSTRUMENT PANEL 27

124 miles, remaining range will be continuously dis-
played 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 ac-
companied 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 Malfunction Indicator Light will be con-
tinuously illuminated. If the message appears and you
can not start the engine, we recommend you have your
vehicle towed to your nearest authorized dealer im-
mediately.
28 UNDERSTANDING YOUR INSTRUMENT PANEL

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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