Page 270 of 576
Zone coverage also decreases when parking at shallow angles. Here, the
left sensor is mostly obstructed; zone coverage on that side is severely
limited.
System Lights and Messages
The BLISand CTA systems
illuminate a yellow alert indicator in
the outside mirror on the side of the
vehicle the approaching vehicle is
coming from.
Note:The alert indicator dims when the headlamp switch is not in the
off position and nighttime darkness is detected.
CTA also sounds a series of tones and a message appears in the
information display indicating a vehicle is coming from the right or left.
CTA works with the reverse sensing system which sounds its own series
of tones; see theParking Aidschapter.
270Driving Aids
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 271 of 576

System Sensors
WARNING:Just prior to the system recognizing a blocked
condition and alerting the driver, the number of missed objects
will increase. To help avoid injuries, NEVER use the BLISas a
replacement for using the side and rear view mirrors and looking over
your shoulder before changing lanes. BLISis not a replacement for
careful driving and only an assist.
Note:It is possible to get a blockage warning with no blockage present;
this is rare and known as a false blockage warning. A false blocked
condition either self-corrects or clears after a key cycle.
The system uses radar sensors
which are located behind the
bumper fascia on each side of the
vehicle. Do not allow these areas to
become obstructed by mud, snow or
bumper stickers, as this can cause
degraded system performance.
If the system detects a degraded performance condition,BLIND SPOT
NOT AVAILABLE,orCROSS TRAFFIC NOT AVAILABLEappear in
the information display and the alert indicator illuminates in the
appropriate mirror(s). The information display warning can be cleared
but the alert indicator remains illuminated.
When the blockage is removed, the system can be reset in two ways: 1)
when at least two objects are detected while driving, or 2) turn the
ignition key from on to off, then back on. If the blockage is still present
after the key cycle, the system senses again that it is blocked after
driving in traffic.
Driving Aids271
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 272 of 576

Reasons for messages being displayed
The radar surface is
dirty or obstructedClean the fascia area in front of the radar or
remove the obstruction.
The radar surface is
not dirty or obstructedDrive normally in traffic for a few minutes to
allow the radar to detect passing vehicles so it
can clear the blocked state.
Heavy rainfall/snowfall
interferes with the
radar signalsNo action required. The system automatically
resets to an unblocked state once the
rainfall/snowfall rate decreases or stops. Do
not use BLISand/or CTA in these conditions.
System Limitations
The BLISand CTA systems do have their limitations; situations such as
severe weather conditions or debris build-up on the sensor area may
limit vehicle detection.
The following are other situations that may limit the BLIS:
•Certain maneuvering of vehicles entering and exiting the blind zone.
•Vehicles passing through the blind zone at very fast rates.
•When several vehicles forming a convoy pass through the blind zone.
The following are other situations that may limit the CTA system:
•Adjacently parked vehicles or objects obstructing the sensors.
•Approaching vehicles passing at speeds greater than 15 mph
(24 km/h).
•Driving in reverse faster than 3 mph (5 km/h).
•Backing out of an angled parking spot.
False Alerts
Note:When towing a trailer, the sensors detect may detect the trailer,
causing a false alert. You may want to turn the BLISoff if the false
alerts become annoying.
There may be certain instances when either the BLISor CTA systems
illuminate the alert indicator with no vehicle in the coverage zone; this is
known as a false alert. Some amount of false alerts are normal; they are
temporary and self-correct.
272Driving Aids
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 273 of 576

System Errors
If either system senses a problem with the left or right sensor, the BLIS
indicator illuminates and remains on andBLIND SPOT SYSTEM
FAULTorCROSS TRAFFIC SYSTEM FAULTappears in the
information display. When problems that may cause the left or right
indicator not to illuminate, only the information display faults appear.
Switching the Systems Off and On
One or both systems can be switched off temporarily by using the
information display control; refer to theInformation Displaychapter.
When the BLISis switched off, the driver does not receive alerts and the
information display shows BLIND SPOT SYS OFF and/or CTA SYSTEM
OFF. The system switches back on whenever the ignition is switched on.
One or both systems can also be switched off permanently at your
authorized dealer. Once switched off, switching it back on must also be
done at the dealership. When switched off, the information display shows
BLIND SPOT DISABLED and/or CTA DISABLED.
COLLISION WARNING SYSTEM (IF EQUIPPED)
WARNING:This system is designed to be a supplementary
driving aid. It is not intended to replace the driver’s attention,
and judgment, or the need to apply the brakes. This system does NOT
activate the brakes automatically. Failure to press the brake pedal to
activate the brakes may result in a collision.
WARNING:The collision warning system with brake support
cannot help prevent all collisions. Do not rely on this system to
replace driver judgment and the need to maintain distance and speed.
Note:The system does not detect, warn or respond to potential
collisions with vehicles to the rear or sides of the vehicle.
Note:The collision warning system is active at speeds above
approximately 5 mph (8 km/h).
This system is designed to alert the
driver of certain collision risks. A
radar detects if your vehicle is
rapidly approaching another vehicle
traveling in the same direction as yours.
Driving Aids273
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 275 of 576

Blocked Sensors
If a message regarding a blocked
sensor appears in the information
display, the radar signals from the
sensor have been obstructed. The
sensors are located behind a fascia
cover near the driver side of the
lower grille. When the sensors are
obstructed, a vehicle ahead cannot
be detected and the collision
warning system does not function.
The following table lists possible
causes and actions for this message being displayed.
Cause Action
The surface of the radar in the
grille is dirty or obstructed in
some wayClean the grille surface in front of
the radar or remove the object
causing the obstruction
The surface of the radar in the
grille is clean but the message
remains in the displayWait a short time. It may take
several minutes for the radar to
detect that it is no longer
obstructed
Heavy rain, spray, snow, or fog is
interfering with the radar signalsThe collision warning system is
temporarily disabled. Collision
warning should automatically
reactivate a short time after the
weather conditions improve.
Swirling water, or snow or ice on
the surface of the road may
interfere with the radar signalsThe collision warning system is
temporarily disabled. Collision
warning should automatically
reactivate a short time after the
weather conditions improve.
Driving Aids275
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 276 of 576

System Limitations
WARNING:The collision warning system’s brake support can
only help reduce the speed at which a collision occurs if the
driver applies the vehicle’s brakes. The brake pedal must be pressed
just like any typical braking situation.
Due to the nature of radar technology, there may be certain instances
where vehicles do not provide a collision warning. These include:
•Stationary vehicles or vehicles moving below 6 mph (10 km/h).
•Pedestrians or objects in the roadway.
•Oncoming vehicles in the same lane.
•Severe weather conditions (see blocked sensor section).
•Debris build-up on the grille near the headlamps (see blocked sensor
section).
•Small distance to vehicle ahead.
•Steering wheel and pedal movements are large (very active driving
style).
•High interior temperatures, which may deactivate the illumination or
the warning lamps until the interior temperature reduces (audible
warning still sounds).
Certain conditions may reduce the visibility of the warning lamp;
therefore, it is recommended to keep the audible warning on.
If the front end of the vehicle is hit or damaged, the radar sensing zone
may be altered causing missed or false collision warnings. See your
authorized dealer to have your collision warning radar checked for proper
coverage and operation.
276Driving Aids
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 316 of 576
Fuse/Relay
NumberFuse Amp
RatingProtected Components
30 40A** Engine cooling fan #2 high speed
fuse
31 25A** Engine cooling fan #1 and #2 low
speed secondary fuse
32 — Auxiliary blower motor relay
33 — Engine cooling fan #1 and #2 low
speed relay #2
34 — Blower motor relay
35 — Engine cooling fan #1 high speed
relay, Engine cooling fan #1 and
#2 low speed relay #1
36 — Not used
37 — TT right stop/turn lamps relay
38 — TT back up relay
39 40A** Auxiliary blower motor
40 — Not used
41 — Not used
42 30A** Passenger seat
43 40A** ABS valves
44 — Rear washer relay
45 5A* Rain sensor
46 — Not used
47 — Not used
48 — Not used
49 — Not used
50 15A* Heated mirrors
51 — Not used
52 — Not used
53 — TT left stop/turn lamps relay
54 — Not used
55 — Wiper relay
56 15A* Transmission control module
316Fuses
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)
Page 317 of 576
Fuse/Relay
NumberFuse Amp
RatingProtected Components
57 20A* Left high-intensity discharge
(HID) headlamps
58 10A* Alternator sensor
59 10A* Brake on/off (BOO) switch
60 10A* TT back-up lamps
61 20A* 2nd row seat release
62 10A* A/C clutch
63 15A* TT stop/turn lamps
64 15A* Rear wipers
65 30A* Fuel pump
66 — Powertrain control module
(PCM) relay
67 20A* Vehicle power (VPWR) #2
(emission related powertrain
components)
68 20A* VPWR #4 (ignition coils)
69 20A* VPWR #1 (PCM)
70 10A* VPWR #3 (coil), All-wheel drive
module, A/C variable compressor
control
71 — Not used
72 — Not used
73 — Not used
74 — Not used
75 — Not used
76 — Not used
77 — TT park lamps relay
78 20A* Right HID headlamps
79 5A* Adaptive cruise control (ACC)
80 — Not used
81 — Not used
82 15A* Rear washer
Fuses317
2013 Explorer(exp)
Owners Guide gf, 1st Printing
USA(fus)