•Engine Hours
Displays the actual engine hours.
Gauge Summary (Coolant Temp, Trans Temp, Oil Temp,
Oil Pressure)
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 (800 km). 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 cluster
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 cluster 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 Instrument
Cluster Display •
Engine Will Not Restart in XXXX mi Refill DEF — This
message will display when DEF driving range is less
than 200 miles. It is also displayed at 150 miles and
100 miles. DEF fluid top off is required with in the
displayed mileage. The message will be displayed in the
Instrument Cluster 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 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 Instrument
Cluster Display 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.
28 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 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 50 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.
• Engine Will Not Restart in XXX mi Service DEF See
Dealer — This message is first displayed if the fault
detected is not serviced after 50 miles of operation. It is
also displayed at 150 miles 125 miles and 100 miles.
System service is required within the displayed mileage.
The message will be displayed during vehicle start up
with an updated distance mileage, and it will be accom-
panied by a single chime. Starting at 100 miles, remain-
ing range will be continuously displayed while operat-
ing 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
3
UNDERSTANDING YOUR INSTRUMENT PANEL 29
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is a
regulated substance requiring proper disposal. Check with
your local authorities to determine the disposal rules for
your community. To prevent ingestion by animals or
children, do not store ethylene glycol-based engine coolant
(antifreeze) in open containers or allow it to remain in
puddles on the ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up any ground
spills immediately.
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle. •
Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
68 MAINTAINING YOUR VEHICLE
Mileage or time passed (whichever comes first)
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
16,000
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Completely fill the Diesel Exhaust Fluid tank. X X X X X X X X X X X X X X X
Inspect the CV/Universal joints. XX X X X
Inspect front suspension, tie rod ends, and replace
if necessary. XXX X X X X
Inspect the front and rear axle fluid. If gear oil leak-
age is suspected, check the fluid level. If using your
vehicle for police, taxi, fleet, off-road or frequent
trailer towing change the axle fluid. XX X X X
Inspect the brake linings, parking brake function. X X X X X X X
Inspect the transfer case fluid. XX X
Additional Maintenance
Replace cabin air filter X X X X X X X
Drain water from fuel filter assembly. X X X X X X X X X X
Replace fuel filter and drain water from the fuel filter
assembly. XX X X X
Replace engine air filter. XX X X X
80 MAINTENANCE SCHEDULE
Mileage or time passed (whichever comes first)
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
16,000
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Flush and replace the engine coolant at 10 years or
150,000 miles (240,000 km) whichever comes first. XX
Replace accessory drive belt(s). X
Inspect the transfer case fluid, change for any of
the following: police, taxi, fleet, or frequent trailer
towing. XX
Change transfer case fluid. X
WARNING!
•You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
(Continued)
WARNING! (Continued)
•Failure to properly inspect and maintain your vehicle
could result in a component malfunction and effect
vehicle handling and performance. This could cause
an accident.
6
MAINTENANCE SCHEDULE 81
Additional Maintenance — B6 To B20 Biodiesel
NOTE:
•Under no circumstances should oil change intervals
exceed 8,000 miles (12,875 km) or six months, whichever
comes first when using biodiesel blends greater
than 5% (B5). •
The owner is required to monitor mileage for B6-B20
biodiesel, the automatic oil change indicator system
does not reflect the use of biofuels.
Additional Maintenance Chart — B6 to B20 Biodiesel
Mileage or time passed (whichever comes first)
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
16,000
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional B6 to B20 Maintenance
Replace fuel filter and drain water from the fuel filter
assembly. XXX X X X X
82 MAINTENANCE SCHEDULE
•If the vehicle is shutoff and restarted.
• If the vehicle is idled for an extended period of time,
approximately one hour or greater.
• If the system detects that the level of fuel in the tank
has increased.
• Add a minimum of 2 gallons (9.5 Liters) of DEF to the
tank in order to avoid vehicle operation at a maximum
speed of 5 MPH (8 km/H).
NOTE: A minimum of 2 gallons (9.5 Liters) may be
required to restore normal vehicle operation. Although the
vehicle will start normally and can be placed in gear after
this message has been initially displayed, extreme caution
should be utilized since the vehicle will only be capable of
maneuvering at a maximum speed of 5 MPH (8 km/H).
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are five 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. The vehicle may be
limited to a maximum speed of 5 MPH (8 km/H) if the
DEF system is not serviced within less than 200 miles
(322 km) of the fault being 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, each time the
vehicle is started, and periodically during driving. The
message will be accompanied by a single chime. We
recommend you drive to your nearest authorized dealer
and have your vehicle serviced as soon as possible.
• 5 MPH Max Speed in 150 mi Service DEF System See
Dealer — This message will display if the DEF system
has not been serviced after the “Service DEF System –
See Dealer” message is displayed. This message will
continuously display until the mileage counter reaches
zero, and will be accompanied by a periodic chime. The
message will continue to countdown until it reaches zero
unless the vehicle is serviced. We recommend you drive
to your nearest authorized dealer and have your vehicle
serviced immediately.
NOTE: Under some circumstances this mileage counter
may start with a value of less than 150 miles (241 km). For
example, if recurring faults are detected in a time interval
of less than 40 hours, the counter may restart at the value
where it stopped when a previous fault was temporarily
remedied, or at a minimum of 50 miles (80 km).
4
UNDERSTANDING YOUR INSTRUMENT PANEL 117
•5 MPH Max Speed on Restart, Long Idle or Refuel
Service DEF See Dealer — This message will continu-
ously display when the mileage counter reaches zero,
and will be accompanied by a periodic chime.
• The vehicle will only be capable of a maximum speed of
5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• If the vehicle is idled for an extended period of time,
approximately one hour or greater.
• If the system detects that the level of fuel in the tank
has increased.
• 5 MPH Max Speed Service DEF System See Dealer —
This message will continuously display, and will be
accompanied by a periodic chime. Although the vehicle
can be started and placed in gear, the vehicle will only
operate at a maximum speed of 5 MPH. Your vehicle
will require towing, see your authorized dealer for
service.
NOTE: When this message is displayed, the engine can
still be started. However, the vehicle will only operate at a
maximum speed of 5 MPH. •
Incorrect DEF Detected See Dealer — This message will
display when the fault is initially detected, each time the
vehicle is started, and periodically during driving. The
message will be accompanied by a single chime. We
recommend you drive to your nearest authorized dealer
and have your vehicle serviced as soon as possible.
RAM Active Air System
Your vehicle is equipped with an advanced Ram Active Air
system that provides enhanced performance, especially
when towing under demanding hot or high altitude con-
ditions. If the Instrument Cluster Display displays the
message “Active Airbox Service Required See Dealer”,
vehicle performance may be reduced until service is per-
formed by an authorized RAM dealer.
118 UNDERSTANDING YOUR INSTRUMENT PANEL