2021 FORD F-150 warning lights

When the trailer disconnects in this state,
the vehicle alarm sounds, and the system
sends an alert to your FordPass app.
Note:
For reliable trailer detection, the
trailer ’s lamps must be SAE certified for
each intended purpose.
Note: If the trailer is not compatible with
the feature, the turn signals flash twice.
Switching the Trailer Connection
Alarm On and Off
1. Press Features on the touchscreen.
2. Press
Towing.
3. Press
Manage trailers.
4. Press the currently active trailer's name.
5. Switch
Trailer Connection
Notification on or off.
Note: The alarm disables by default and if
the system detects a trailer it can be
configurable.
Note: Settings are applicable only for the
selected trailer profile. TRAILER LIGHTING CHECK WARNING:
Never connect any
trailer lamp wiring to the vehicle's tail
lamp wiring; this may damage the
electrical system resulting in fire. Contact
your authorized dealer as soon as
possible for assistance in proper trailer
tow wiring installation. Additional
electrical equipment may be required.
Perform a trailer light illumination
sequence to confirm that all lights are
functioning by using the FordPass app or
the vehicle's touchscreen.
Performing the Trailer Lighting
Check Using the Touchscreen
1. Press
Features on the touchscreen.
2. Press
Towing.
3. Press
Trailer Light Check.
4. Press
Start.
426
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Connecting a Trailer

DRIVING THROUGH WATER
LIMITATIONS - RAPTOR
Maximum Wading
Depth
Model
32 in (810 mm)
All.
When you are driving though water do not
exceed 4 mph (7 km/h).
WATER WADING WARNING:
Do not attempt to
cross a deep, fast flowing body of water.
Failure to follow this instruction could
result in the loss of control of your
vehicle, personal injury or death.
As the water depth increases, you must
reduce your vehicle speed to avoid
potential vehicle damage. •
Always determine the depth before
attempting a water crossing. Never
drive through water that is higher than
the bottom of the wheel hubs.
• Slowly proceed and avoid splashing
water any more than is necessary. •
Be aware that obstacles and debris
may be beneath the water ’s surface.
• Keep the doors fully closed during the
water crossing.
• After driving through water and as soon
as it is safe to do so check the brakes,
horn, lights, and steering wheel to
confirm those systems are functioning
properly.
Note: Engine damage can occur if water
enters the air filter.
OFF-ROAD DRIVING AIDS -
RAPTOR
Selecting an Off-Road Drive Mode
Using the appropriate drive mode increases
your vehicle's control. See
Drive Mode
Control (page 371).
Using Four-Wheel Drive
Your vehicle has a four-wheel drive system
that offers various modes to help you
optimize traction on any off-road surface.
See
Four-Wheel Drive (page 291).
Using the Cameras Off-Road
Use the 360 degree camera to enhance
your off-road experience. See 360 Degree
Camera
(page 342).
Using the Rear Differential Lock
When engaged, the rear differential lock
provides additional traction to your vehicle
by forcing the two rear wheels to turn at
the same speed.
Note: Rear differential lock is only available
when the vehicle is in 4H or 4L. See
Electronic Locking Differential (page 301).
474
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Driving HintsE310941

pressure sensors are mounted into
each tire on your trailer. The
sensors send a message to your
vehicle indicating the current
trailer tire pressure and
temperature.
If the trailer tire pressure
monitoring system detects that a
tire is low, a warning message
appears in the information display.
The trailer tire information screen
in the information display
highlights the tire with a low
pressure.
If the trailer tire pressure
monitoring system detects that a
tire temperature is over temp, a
warning message appears in the
Information display. The trailer tire
information screen in the
information display highlights the
tire with a high temperature.
The main function of the trailer tire
pressure monitoring system is to
warn you when your trailer tires
need air or if the tires are
experiencing high temperatures.
It can also warn you in the event
the system is no longer capable
of functioning as intended. See
Tire Pressure Monitoring
System – Information
Messages
(page 565). When a Temporary Spare or
New Tire is Installed
If you have replaced a trailer tire
with a new or spare tire, a warning
message appears and pressure
readings are no longer displayed
for that tire.
To restore the full function of the
trailer tire pressure monitoring
system:
•
Have the damaged wheel and
tire assembly repaired and
remounted to your trailer.
• Install the trailer tire pressure
monitoring sensor into the new
wheel and tire assembly.
• Perform the trailer tire pressure
monitoring system reset
procedure.
Trailer Tire Pressure
Monitoring System Reset
Procedure
Note: You need to perform the tire
pressure monitoring system reset
procedure after each tire rotation,
or when a new trailer tire pressure
sensor is installed into a trailer tire.
The trailer tire pressure monitoring
system can be reset through the
menu in the information display.
See Tire Pressure Monitoring
System – Information
Messages (page 565). Performing
the trailer setup process also
resets the trailer tire pressure
monitoring system.
563
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Tire Pressure Monitoring System