Owner`s manual

Electronic Speed Control – If Equipped
• Do not use in hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
• Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
Air Suspension System
To aid in attaching/detaching the trailer from the vehicle,
the air suspension system can be used. Refer to “Air
Suspension System” in “Starting and Operating” for
further information.
NOTE: The vehicle must remain in the engine running
position while attaching a trailer for proper leveling of
the air suspension system.
DIESEL EXHAUST FLUID
Your vehicle is equipped with a Selective Catalytic Re-
duction system in order to meet the very stringent diesel
emissions standards required by the Environmental Pro-
tection Agency. Selective Catalytic Reduction (SCR) is the
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STARTING AND OPERATING 69