If that is true, they need to reprint the Diesel supplement. The below is from the 2nd printing of the 2014 supplement:

Continued driving without refilling will
result in the following actions as required
by the California Air Resources Board
(CARB) and the 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 information display.
• Further vehicle operation without
refilling your diesel exhaust fluid tank
will cause the engine to enter an
idle-only condition. This will only occur
upon vehicle refueling or at an
extended idle. A message will indicate
the required actions to resume normal
operation. It is required to add a
minimum of 0.5 gallons (1.9L) of diesel
exhaust fluid to the tank to exit the
idle-only condition, but your vehicle will
still be in the speed-limiting mode until
you refill the tank completely.
For either vehicle speed limiting or idle-only
condition, normal vehicle operation will
resume when you refill the diesel exhaust
fluid tank.
Note: When filling the diesel exhaust fluid
tank from empty, there may be a short delay
before detecting the increased level of fluid.
The increased level detection must occur
before your vehicle returns to full power.
Low DEF Warnings and Actions — Instrument Cluster Messages (Optional message center
messages shown, base message center messages similar)
Customer Vehicle Actions
Requested Actions
Distance/Exhaust
Fluid Level or Action
Cluster Message
Full exhaust fluid Drive normally None
tank
Exhaust Fluid Level
OK
Exhaust fluid tank Drive normally None
below 1⁄2 full
Exhaust Fluid Under
1⁄2 Full
Approximately 500 Refill exhaust fluid None
miles (805 km) left
before exhaust fluid
tank is empty
Exhaust Fluid Range
500 miles (805 km)
Approximately 99 Refill exhaust fluid None
Miles (159 km) left
before exhaust fluid
tank is empty
In 99 Miles (159 km)
Speed Limited to 50
MPH (80 km/h)
Exhaust Fluid Empty