2011 Ford F450 Super Duty Crew Cab Diesel Supplement 5th Printing - Page 27

2011 Ford F450 Super Duty Crew Cab Manual

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Maintenance and Specifications DEF warning messages and vehicle operations WARNING: Diesel Exhaust Fluid (DEF) must be refilled when low or replaced when contaminated or the vehicle speed will be speed limited to 55 mph (89 km/h) and then 50 mph (80 km/h). In these conditions, drive with caution and refill DEF immediately. If the DEF becomes empty or contaminated fluid is not replaced, the vehicle will become limited to idle speed only once stopped. In these conditions, be cautious where you stop the vehicle because you may not be able to drive long distances and will not be able to maintain highway speeds until DEF is refilled or replaced. Your vehicle's message center will display a series of messages regarding the amount of DEF available. A systems check will display messages indicating the amount of DEF available (OK or under 1⁄2 full) or will produce a warning message that displays the mileage (kilometers) remaining as the fluid in the DEF tank nears empty. For more information on warning messages, see the Message center section in the Instrument Cluster chapter of your Owner's Guide. As the DEF level nears empty, the DEF warning symbol will be displayed and chimes will sound with the messages starting at 300 miles (483 km) remaining before DEF is depleted. The warning symbol and messages will continue until the DEF tank is refilled. Continued driving without refilling will result in the following actions as required by the California Air Resources Board (CARB) and /or U.S. Environmental Protection Agency (EPA): • Within a certain number of miles (kilometers) to empty, speed will be limited upon vehicle restart. Prior to this occurring a message will appear in the message center. • Further vehicle operation without refilling your DEF tank will cause the engine to enter an idle-only condition. This will only occur upon vehicle refueling and will be indicated by a message in the message center indicating required actions to resume normal operation. It is required to add a minimum of 0.5 gallons (1.9L) of DEF to the tank to exit the idle-only condition, but the vehicle will still be in the speed limiting mode until the tank is refilled. 27 2011 Diesel (eco) Supplement, 5th Printing USA (fus)

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DEF warning messages and vehicle operations
WARNING:
Diesel Exhaust Fluid (DEF) must be refilled when
low or replaced when contaminated or the vehicle speed will be
speed limited to 55 mph (89 km/h) and then 50 mph (80 km/h). In
these conditions, drive with caution and refill DEF immediately. If the
DEF becomes empty or contaminated fluid is not replaced, the vehicle
will become limited to idle speed only once stopped. In these
conditions, be cautious where you stop the vehicle because you may
not be able to drive long distances and will not be able to maintain
highway speeds until DEF is refilled or replaced.
Your vehicle’s message center will display a series of messages regarding
the amount of DEF available. A systems check will display messages
indicating the amount of DEF available (OK or under
1
±
2
full) or will
produce a warning message that displays the mileage (kilometers)
remaining as the fluid in the DEF tank nears empty. For more
information on warning messages, see the
Message center
section in the
Instrument Cluster
chapter of your
Owner’s Guide
.
As the DEF level nears empty, the
DEF warning symbol will be
displayed and chimes will sound
with the messages starting at
300 miles (483 km) remaining
before DEF is depleted. The
warning symbol and messages will
continue until the DEF tank is
refilled.
Continued driving without refilling will result in the following actions as
required by the California Air Resources Board (CARB) and /or U.S.
Environmental Protection Agency (EPA):
•
Within a certain number of miles (kilometers) to empty, speed will be
limited upon vehicle restart. Prior to this occurring a message will
appear in the message center.
•
Further vehicle operation without refilling your DEF tank will cause
the engine to enter an idle-only condition. This will only occur upon
vehicle refueling and will be indicated by a message in the message
center indicating required actions to resume normal operation. It is
required to add a minimum of 0.5 gallons (1.9L) of DEF to the tank to
exit the idle-only condition, but the vehicle will still be in the speed
limiting mode until the tank is refilled.
Maintenance and Specifications
27
2011 Diesel
(eco)
Supplement, 5th Printing
USA
(fus)