Ford 2016 F-150 Owner's Manual page 263

The system is not available:
• The system relies on many
sub-systems in your vehicle to operate
correctly. If those sub-systems are not
operating correctly the system may not
be available.
• Low battery voltage is a condition
which will prevent the system from
operating. Please make sure the
battery is correctly charged if the
system is not available.
• You may need to drive your vehicle
straight forward above 25 mph
(40 km/h) before the system is
available again.
• If the message still displays take your
vehicle to an authorized dealer for
service.
Sticker lost:
• Check for the following if you receive
the lost sticker message while using
the system.
• Stop your vehicle as soon as the
message displays.
• Make sure the sticker is visible in
the rear view camera image.
• Clean the sticker and camera to
make sure they are unobstructed.
• Remove any items that may be
blocking the view of the sticker.
Depending on your trailer
configuration and any equipment
mounted to your trailer it is possible
for the sticker to be blocked from
view of the camera as it rotates on
the hitch ball but not be blocked
during setup. Remove the
obstruction if possible. It wil be
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 08/2015, First Printing
Towing
necessary to remove the sticker
from it's current location if the
obstruction cannot be cleared and
place a new sticker that will be
visible to the camera in all positions
of the trailer behind your vehicle.
• You can change your sticker
location by going into the trailer
menu, selecting trailer options,
selecting change trailer settings
and then selecting the change
sticker option. The previous sticker
must be removed. ONLY ONE
STICKER SHOULD BE PLACED
ON THE TRAILER FOR CORRECT
SYSTEM FUNCTION.
• The camera system uses the
entered measurements to help
locate the sticker. Inaccurate
measurements will reduce the
system's ability to locate the
sticker. Check the measurements
entered into the system are correct.
Refer to the step 4 of Pro trailer
backup Assist setup for instructions
on measurements.
• You can change your measurement
by going into the trailer menu,
selecting trailer options, selecting
change trailer setting and then
selecting the change sticker option.
Disregard the prompt to remove
this sticker and continue to the next
step if you only plan to update the
measurements for the current
sticker location.
System will not backup straight:
• Factors such as the drawbar
connection to the hitch receiver, road
camber, road grade and compliance in
the trailer suspension can influence
how straight the system is able to back
your trailer when the knob is not turned.
You can compensate for the trailer
drifting to the right or left by slowly
turning the Pro Trailer Backup Assist
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