Ford Ranger 2019 Owner's Manual page 194

When the system detects a vehicle, an
alert indicator illuminates in the exterior
mirror on the side the approaching vehicle
is coming from. If you turn the direction
indicator on for that side of your vehicle,
the alert indicator flashes.
Note: The system may not alert you if a
vehicle quickly passes through the detection
zone.
Blocked Sensors
E280125
The sensors are inside the tail lamp on
both sides of your vehicle.
Note: Keep the sensors free from snow, ice
and large accumulations of dirt.
Note: Do not cover the sensors with bumper
stickers, repair compound or other objects.
Note: Blocked sensors could affect system
performance.
If the sensors become blocked, a message
may appear in the information display. See
Information Messages (page 95). The
alert indicators remain illuminated but the
system does not alert you.
Ranger (TFG) Canada/United States of America, enUSA, Edition date: 201809, First-Printing
Driving Aids
Blind Spot Information System
with Trailer Tow
E225007
The blind spot information system with
trailer tow is designed to aid you in
detecting vehicles that may have entered
the detection area zone (A). The detection
area is on both sides of your vehicle and
trailer, extending rearward from the
exterior mirrors to the end of your trailer.
When you attach a trailer and have set up
a blind spot trailer, the blind spot
information system with trailer tow
becomes active when driving forward
above 6 mph (10 km/h).
You can switch the system off in the
information display. See General
Information (page 87). If you switch the
blind spot information system off, blind
spot information system with trailer tow
automatically turns off.
191
(If Equipped)