User Manual - Page 249

For 2021 F-150 King Ranch®.

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Driving without refilling, replacing
contaminated diesel exhaust fluid, or
having the selective catalytic reduction
system repaired results in the following
actions as required by the California Air
Resources Board (CARB) and the U.S.
Environmental Protection Agency (EPA):
Within a preset distance to empty,
speed is limited upon vehicle restart.
Prior to this occurring a message
appears in the information display.
Further vehicle operation without
refilling or replacing contaminated
diesel exhaust fluid causes the engine
to enter an idle-only condition. This
only occurs upon vehicle refueling,
vehicle idling in park for 1 hour, or
engine shutdown for 10 minutes or
more and is indicated by a message in
the information display indicating
required actions to resume normal
operation. It is required to add a
minimum of 1.0 gal (3.8 L) of diesel
exhaust fluid to the tank to exit the
idle-only condition, but your vehicle is
still in the speed-limiting mode until
you refill the tank completely.
Note: For vehicle speed limiting or idle-only
condition, normal vehicle operation resumes
when you refill the diesel exhaust fluid tank
or repair the contaminated system. If the
system is contaminated or inoperative, have
your vehicle checked as soon as possible.
SELECTIVE CATALYTIC
REDUCTION SYSTEM
REQUIREMENTS
E163354
Only use diesel exhaust fluid that is
certified by the American Petroleum
Institute (API).
You can purchase diesel exhaust fluid at
an authorized dealer, or contact roadside
assistance for help in finding a retailer that
sells diesel exhaust fluid.
Note: Non-certified diesel exhaust fluid use
can cause damage that your Warranty may
not cover
SELECTIVE CATALYTIC
REDUCTION SYSTEM
GUIDELINES
Diesel exhaust fluid is non-flammable,
non-toxic, colorless and water-soluble
liquid.
In order for the system to operate
correctly you must maintain the diesel
exhaust fluid level.
Do not overfill the diesel exhaust fluid
tank.
Diesel exhaust fluid is corrosive.
246
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202007, First-Printing
Selective Catalytic Reduction System - Diesel
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