Page 10 of 145

ENGINE BREAK-IN RECOMMENDATIONS
The diesel engine does not require a break-in period due
to its construction. Normal operation is allowed, provid-
ing the following recommendations 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 indica-
tors.
• Check the coolant and oil levels frequently.
• Vary accelerator pedal 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, Lubricants and Genuine Parts”,
under “Maintaining Your Vehicle” in this manual. NON-
DETERGENT OR STRAIGHT MINERAL OILS MUST
NEVER BE USED.
8 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Page 87 of 145
DEF Fill Procedure
NOTE:Refer to “Fluids, Lubricants, And Genuine Parts”
in “Maintaining Your Vehicle” for the correct fluid type. 1. Remove cap from DEF filler neck (located on drivers
side of the vehicle in the fuel door).
2. Insert DEF fill adapter/nozzle into DEF tank filler neck.
CAUTION!
•To avoid DEF spillage, and possible damage to the
DEF tank from overfilling, do not “top off” the DEF
tank after filling.
• DO NOT OVERFILL. DEF will freeze below 12ºF
(-11ºC). The DEF system is designed to work in
temperatures below the DEF freezing point, how-
ever, if the tank is overfilled and freezes, the
system could be damaged.
• When DEF is spilled, clean the area immediately
with water and use an absorbent material to soak
up the spills on the ground.
(Continued)
1 — Diesel Fuel Fill Location
2 — Diesel Exhaust Fluid (DEF) Fill Location
5
STARTING AND OPERATING 85
Page 90 of 145

The DEF injection system and SCR catalyst enable the
achievement of diesel emissions requirements; while
maintaining outstanding fuel economy, drivability,
torque and power ratings.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for system
messages and warnings.
NOTE:
•Your vehicle is equipped with a DEF injection system.
You may occasionally hear an audible clicking noise
from under the vehicle at a stop. This is normal
operation.
• The DEF pump will run for a period of time after
engine shutdown to purge the DEF system. This is
normal operation and may be audible from under the
vehicle.TRAILER TOWING
In this section you will find safety tips and information
on limits to the type of towing you can reasonably do
with your vehicle. Before towing a trailer, carefully
review this information to tow your load as efficiently
and safely as possible.
To maintain the New Vehicle Limited Warranty coverage,
follow the requirements and recommendations in this
manual concerning vehicles used for trailer towing.
Common Towing Definitions
The following trailer towing related definitions will assist
you in understanding the following information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle.
This includes driver, passengers, cargo and tongue
weight. The total load must be limited so that you do not
88 STARTING AND OPERATING
Page 138 of 145

Adding Engine Coolant (Antifreeze)............113
Adding Fuel ..............................82
Air Bag Light .............................19
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .106
Antifreeze (Engine Coolant) ...............112,119
Disposal ..............................115
Anti-Lock Warning Light .....................40
Automated Manual Transmission Fluid Type ........................... .123
Battery ............................. .20, 110
Charging System Light ....................20
Brake Fluid ............................ .123
Brake System ............................117
Fluid Check ...........................117
Master Cylinder ........................117
Warning Light ..........................26
Capacities, Fluid ..........................119 Caps, Filler
Oil (Engine) .......................... .105
Radiator (Coolant Pressure) ................115
Coolant Pressure Cap (Radiator Cap) ...........115
Cooling System ...........................111
Adding Coolant (Antifreeze) ...............113
Coolant Capacity .......................119
Coolant Level ..........................111
Disposal Of Used Coolant .................115
Drain, Flush, And Refill ...................112
Points To Remember .....................116
Pressure Cap ..........................115
Radiator Cap ..........................115
Selection Of Coolant (Antifreeze) ......112,119,120
Cruise Light .......................... .46, 47
Diesel Exhaust Fluid (DEF) ..................120
Diesel Fuel .......................... .76, 120
Diesel Fuel Requirements .................76, 120
136 INDEX