Page 118 of 675
• Use the appropriate transmission gear to prevent
engine lugging.
• Observe vehicle oil pressure and temperature indica-
tors.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carry-
ing 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.
For additional vehicle break-in requirements, refer to
“Trailer Towing” in “Starting and Operating” of the
Owner ’s Manual. Because of the construction of the Cummins turbo-
charged diesel engine, engine run-in is enhanced by
loaded operating conditions which allow the engine
parts to achieve final finish and fit during the first 6,000
miles (10 000 km).
SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO
AREA.116 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Page 239 of 675

1. Tachometer
• Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Voltmeter
• When the engine is running, the gauge indicates the
electrical system voltage. The pointer should stay
within the normal range if the battery is charged. If
the pointer moves to either extreme left or right and
remains there during normal driving, the electrical
system should be serviced.
NOTE: The voltmeter may show a gauge fluctuation at
various engine temperatures. This cycling operation is
caused by the post-heat cycle of the intake manifold
heater system. The number of cycles and the length of the
cycling operation is controlled by the engine control
module. Post-heat operation can run for several minutes,
and then the electrical system and voltmeter needle will
stabilize. 3. Oil Pressure Gauge
• The pointer should always indicate some oil pres-
sure when the engine is running. A continuous high
or low reading under normal driving conditions may
indicate a lubrication system malfunction. Immedi-
ate service should be obtained from an authorized
dealer.
4. Speedometer
• Indicates vehicle speed.
5. Fuel Gauge
• The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
• The fuel pump arrow symbol points to the
side of the vehicle where the fuel door is located. 4UNDERSTANDING YOUR INSTRUMENT PANEL 237
Page 256 of 675

Tire Pressure Monitoring Indicator Light
Yellow Telltale
Light What It Means
Tire Pressure Monitoring Indicator Light
The warning light switches on and a message is displayed to indicate that the tire pressure
is lower than the recommended value and/or that slow pressure loss is occurring. In these
cases, optimal tire duration and fuel consumption may not be guaranteed.
Should one or more tires be in the condition mentioned above, the display will show the
indications corresponding to each tire in sequence.
IMPORTANT: Do not continue driving with one or more
flat tires as handling may be compromised. Stop the
vehicle, avoiding sharp braking and steering. Repair
immediately using the dedicated tire repair kit and
contact your authorized dealership as soon as possible.
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) that illuminates a low tire pressure telltale when254 UNDERSTANDING YOUR INSTRUMENT PANEL
Page 257 of 675

one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, 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.
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 tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more
tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly. 4UNDERSTANDING YOUR INSTRUMENT PANEL 255
Page 276 of 675
NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
EVIC Messages
• Front Seatbelts Unbuckled
• Driver Seatbelt Unbuckled
• Passenger Seatbelt Unbuckled
• Service Airbag System
• Traction Control Off
• Washer Fluid Low
• Oil Pressure Low
• Oil Change Due
• Fuel Low
• Service Antilock Brake System • Service Electronic Throttle Control
• Service Power Steering
• Cruise Off
• Cruise Ready
• Cruise Set To XXX MPH
• Tire Pressure Screen With Low Tire(s) “Inflate Tire to
XX”
• Tire Pressure Information System (TPIS)
• Service Tire Pressure System
• Parking Brake Engaged
• Brake Fluid Low
• Service Electronic Braking System
• Engine Temperature Hot274 UNDERSTANDING YOUR INSTRUMENT PANEL
Page 279 of 675

Vehicle Info Menu Item
Push and release the UP or DOWN arrow button
until the Vehicle Info menu item is highlighted in the
EVIC. Push and release the RIGHT arrow button
to enter the submenus items of Vehicle Info. follow the
directional prompts to access or reset any of the
following Vehicle Info submenu items:
• Tire Pressure
• Coolant Temp
• Transmission Temp (Automatic only)
• Oil Temp
• Oil Pressure
• Oil Life
• Battery Voltage
• Gauge Summary • Engine Hours
Fuel Economy Menu Item
Push and release the UP or DOWN arrow button
until the Fuel Economy menu item is highlighted.
Push and Hold the RIGHT arrow button to reset
Average Fuel Economy.
• Current Fuel Economy Gauge
• Average Fuel Economy value
• Range to Empty
• Dual Fuel Tank levels — If Equipped
• Push and release the RIGHT arrow button to
display the Fuel Tank Level submenu item. Your
EVIC will display the fuel levels of the Front and
Rear fuel tanks. The fuel is automatically trans-
ferred from the Rear tank to the Front tank based on 4UNDERSTANDING YOUR INSTRUMENT PANEL 277
Page 281 of 675
• Trailer Brake
• Output
• Type
• Gain
EVIC Messages
• Front Seatbelts Unbuckled
• Driver Seatbelt Unbuckled
• Passenger Seatbelt Unbuckled
• Service Airbag System
• Traction Control Off
• Washer Fluid Low
• Oil Pressure Low
• Oil Change Due
• Fuel Low • Service Antilock Brake System
• Service Electronic Throttle Control
• Service Power Steering
• Cruise Off
• Cruise Ready
• Cruise Set To XXX MPH
• Tire Pressure Screen With Low Tire(s) “Inflate Tire to
XX”
• Tire Pressure Information System (TPIS)
• Service Tire Pressure System
• Parking Brake Engaged
• Brake Fluid Low
• Service Electronic Braking System 4UNDERSTANDING YOUR INSTRUMENT PANEL 279
Page 296 of 675
NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
DID Messages
• Front Seatbelts Unbuckled
• Driver Seatbelt Unbuckled
• Passenger Seatbelt Unbuckled
• Service Airbag System
• Traction Control Off
• Washer Fluid Low
• Oil Pressure Low
• Oil Change Due
• Fuel Low
• Service Antilock Brake System • Service Electronic Throttle Control
• Service Power Steering
• Cruise Off
• Cruise Ready
• Cruise Set To XXX MPH
• Tire Pressure Screen With Low Tire(s) “Inflate Tire to
XX”
• Tire Pressure Information System (TPIS)
• Service Tire Pressure System
• Parking Brake Engaged
• Brake Fluid Low
• Service Electronic Braking System
• Engine Temperature Hot294 UNDERSTANDING YOUR INSTRUMENT PANEL