DIESEL ENGINE BREAK-IN RECOMMENDATIONS
• The 3.0 turbocharged diesel engine does not require a break-in period due to itsconstruction. Normal operation is allowed, providing the following recommenda-
tions are followed:• Warm up the engine before placing it under load.
• Do not operate the engine at idle for prolonged periods.
• Use the appropriate transmission gear to prevent engine lugging.
• Observe vehicle oil pressure and temperature indicators.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carrying or towing significant
weight.
NOTE:
Light duty operation such as light trailer towing or no load operation will extend the
time before the engine is at full efficiency. Reduced fuel economy and power may be
seen at this time.
• The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated
climate conditions under which vehicle operations will occur. The recommended
viscosity and quality grades are shown under “FLUIDS AND CAPACITIES”, under
“MAINTAINING YOUR VEHICLE” in this User Guide. NON-DETERGENT OR
STRAIGHT MINERAL OILS MUST NEVER BE USED.
DIESEL ENGINE STARTING PROCEDURES
Normal Starting Procedure
1. Apply the parking brake.
2. Ensure the shift lever is in the PARK position.
3. Press and hold the brake pedal while pressing the ENGINE START/STOP button
once.
4. The system will take over and attempt to start the vehicle. If the vehicle fails to start, the starter will disengage automatically after 30 seconds.
5. If you wish to stop the cranking of the engine prior to the engine starting, press the button again.
6. Check that the oil pressure warning light has turned off.
7. Release the parking brake.
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CAUTION!
• To avoid DEF spillage and overfilling, do not “top off” the DEF tank after filling.
• When DEF is spilled, clean the area immediately with water or a mild solvent.
• DO NOT OVERFILL. DEF will freeze below 12 degrees F (-11 degrees C). TheDEF system is designed to work in temperatures below the DEF freezing point,
however, if the tank is overfilled and freezes, the system could be damaged.
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 EVIC 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 EVIC 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 EVIC.
• 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 EVIC during vehicle start up with an updated distance mileage, and
it will be accompanied by a single chime. Stating 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 EVIC 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.
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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
XXX mi 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
50 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 in the EVIC 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. 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 the 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 the engine will not start
and each time the vehicle is started. The message will be continuously displayed
and be accompanied by a single chime. Your Malfunction Indicator Light will also
be continuously illumined. We highly recommend you drive to your nearest
authorized dealer immediately 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.
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Water In Fuel Message
If a Water In Fuel message orindicator appears in the cluster and a chime sounds
five times, the fuel/water separator will need to be drained immediately to prevent
engine damage.
Refer to “Draining Fuel Water Separator” in this guide for draining instructions or see
your dealer.
Cold Start Procedure
• Turn the ignition switch to the ON position. If the Wait To Startlight appears
in the cluster, wait for the light to turn off before starting.
• In extremely cold weather below 0°F (-18°C) it may be beneficial to cycle the manifold heaters twice before attempting to start the engine. This can be
accomplished by turning the ignition OFF for at least five seconds and then back
ON after the “Wait To Start Light” has turned off, but before the engine is started.
However, excessive cycling of the manifold heaters will result in damage to the
heater elements or reduced battery voltage.
Refer to the Owner's Manual Diesel Supplement on the DVD for further details.
Engine Idling
Avoid prolonged engine idling. Long periods of idling may be harmful to your engine
because combustion chamber temperatures can drop so low that the fuel may not
burn completely.
Incomplete combustion allows carbon and varnish to form on piston rings, engine
valves, and injector nozzles. Also, the unburned fuel can enter the crankcase,
diluting the oil and causing rapid wear to the engine.
If the engine is allowed to idle, under some conditions the idle speed may increase
to 900 RPM then return to normal idle speed. This is normal operation.
WARNING!
Remember to disconnect the cord before driving. Damage to the 110–115 volt
electrical cord could cause electrocution.
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DIESEL EXHAUST BRAKE (ENGINE BRAKING)
The Exhaust Brake switch is located on the switch bank below the audio system. This
switch is used to enable exhaust brake modes.
• Pressing the exhaust brake switch once will enable full strength exhaust brakemode, indicated by a yellow icon in the EVIC. This mode applies full exhaust
braking when the accelerator pedal is released. This is most useful for slowing the
vehicle.
• Pressing the exhaust brake switch again will enable the Smart Brake feature, indicated by a green icon in the EVIC. This feature is intended to maintain the
vehicle speed present when the accelerator pedal is released. However, when the
brakes are applied, full exhaust braking is still enabled to slow the vehicle.
• A third press of the brake switch will turn the exhaust brake off, and will extinguish the exhaust brake icon in the EVIC.
NOTE:
In general, higher engine speeds result in higher exhaust braking force. For optimum
braking power, it is recommended to use the exhaust brake while in TOW/HAUL
mode.
CAUTION!
Use of aftermarket exhaust brakes is not recommended and could lead to engine
damage.
WARNING!
Do not use the exhaust brake feature when driving in icy or slippery conditions as
the increased engine braking can cause the rear wheels to slide and the vehicle to
swing around with the possible loss of vehicle control, which may cause a collision
possibly resulting in personal injury or death.
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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 350 miles (563 km). If the following warning message
sequence is ignored, your vehicle may be limited to a maximum speed of 5 MPH
(8 km/H) unless DEF is added.
•DEF Low Refill Soon — This message will display when the low level is reached,
during vehicle start up, and with increased frequency during vehicle operation.
It will be accompanied by a single chime. Approximately 5 gallons (19 Liters) of
DEF is required to refill the tank when this message is initially displayed on pickup
applications, and approximately 7 gallons (28 Liters) are required on chassis-cab
applications.
• Speed Limited to 5 MPH in XXX mi Refill DEF — This message will continuously
display if the “DEF Low Refill Soon” message is ignored, and the frequency of
occurance of the chime will increase unless up to 2 gallons (7.5 Liters) of DEF is
added to the tank.
• 5 MPH Max Speed on Restart, Long Idle or Refuel Refill DEF — This message will
continuously display when the 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 orgreater.
• 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).
• 5 MPH Max Speed Refill DEF — The vehicle will only be capable of a maximum
speed of 5 MPH (8 km/H) when this message is displayed. Add up to 2.5 gallons
(9.5 Liters) of DEF to the tank to restore normal vehicle operation.
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).
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Diesel Exhaust Fluid (DEF) Fault Warning Messages
There are four 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
250 miles (402 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).
• 5 MPH Max Speed on Restart, Long Idle or Refuel Service DEF See Dealer — This
message will continuously 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 orgreater.
• 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.
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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
- Electronic Stability Control (ESC) Activation/Malfunction Indicator
Light
If this indicator light flashes during acceleration, apply as little throttle as possible.
While driving, ease up on the accelerator. Adapt your speed and driving to the
prevailing road conditions. To improve the vehicle's traction when starting off in deep
snow, sand or gravel, it may be desirable to switch the ESC system off.
- 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) when one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure EVIC 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.
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