2018 SUBARU WRX sensor

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
To release the Auto Vehicle Hold function.............7-48
Tips......................................................................7-48
Hill start assistsystem.........................................7-49
To activate/deactivate the Hill start assist system
(models without the electronic parking brake
system)...............................................................7-51
Hill start assist warning light/Hill start assist OFF
indicator light (models without the electronic
parking brake system).........................................7-53
Cruise control.......................................................7-53
To set cruise control.............................................7-54
To temporarily cancel the cruise control................7-55
To turn off the cruise control.................................7-55
To change the cruising speed...............................7-55
Cruise control indicator........................................7-56
Cruise control set indicator...................................7-56
BSD/RCTA (ifequipped).......................................7-57
System features....................................................7-57System operation.................................................7-59
BSD/RCTA approach indicator light/warning
buzzer...............................................................7-60
BSD/RCTA warning indicator................................7-62
BSD/RCTA OFF switch..........................................7-63
Certification for the BSD/RCTA.............................7-64
Handling of radar sensors....................................7-65
Reverse Automatic Braking System
(if equipped).......................................................7-66
Reverse Automatic Braking System overview........7-67
Operating conditions............................................7-67
Reverse Automatic Braking System operation .......7-70
Canceling the Reverse Automatic Braking
system operation...............................................7-74
Reverse Automatic Braking system ON/OFF
setting...............................................................7-74
RAB warning indicator..........................................7-75
Handling of the sonar sensors..............................7-75
Starting and operating

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Auto modeIn the auto mode, the system estimates the
driving and road conditions using signals
from the wheel speed sensor, throttle
position sensor, steering angle sensor
and brake switch, etc. According to the
result, it electronically and automatically
controls the degree of limitation of the
differential action (LSD torque) to optimize
the differential action of the center differ-
ential. When you turn the ignition switch
ON, the“AUTO”indicator on the combina-
tion meter appears.The auto mode has 3 modes as follows.
Mode Operation
AUTO [+] This mode emphasizes traction
control and strengthens the lim-
itation of differential action that
is suitable for driving on slippery
roads for vehicle stability.
AUTO This mode is suitable for most
driving situations.
AUTO [] This mode is suitable when you
seek quick response from the
steering wheel and smooth
driving.
!Mode setting method
In most situations, it is recommended that
the“AUTO”mode is selected.Push the control switch forward to select
the“AUTO [+]”mode. After setting themode,“AUTO [+]”appears.
Pull the control switch rearward to select
the“AUTO []”mode. After setting the
mode,“AUTO []”appears.
When the“AUTO [+]”mode is selected,
pull the control switch rearward to change
to the“AUTO”mode. When the“AUTO []”
mode is set, push the control switch
forward to change to the“AUTO”mode.
Starting and operating/Driver’s Control Center Differential (C.DIFF/DCCD) (STI)
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
off.
Creating an adequate driving wheel slip by
deactivating the Vehicle Dynamics Control
system temporarily may help to escape
from the following situations. Use the
Vehicle Dynamics Control OFF mode as
necessary.
.a standing start on a steeply sloping
road with a snowy, gravel-covered, or
otherwise slippery surface
.extrication of the vehicle when its
wheels are stuck in mud or deep snow
You should not deactivate the Vehicle
Dynamics Control system except under
the above-mentioned situations.NOTE.If you turn the ignition switch to the
“LOCK”/“OFF”position with the Vehi-
cle Dynamics Control system deacti-
vated, the system will be automatically
reactivated the next time the engine is
started.
.If you press and hold the switch for
30 seconds or longer, the Vehicle
Dynamics Control OFF indicator light
turns off, the Vehicle Dynamics Control
system is activated, and the system
ignores any further pressing of the
switch. To make the switch usable
again, turn the ignition switch to the“LOCK”/“OFF”position and restart the
engine.
.When the Vehicle Dynamics Control
OFF mode is selected, the vehicle’s
running performance is comparable
with that of a vehicle that does not have
a Vehicle Dynamics Control system. Do
not deactivate the Vehicle Dynamics
Control system except when absolutely
necessary.
.Even when the Vehicle Dynamics
Control OFF mode is selected, compo-
nents of the brake control system may
still activate. When the brake control
system is activated, the Vehicle Dy-
namics Control operation indicator
light illuminates.
Tire pressure monitoring
system (TPMS) (U.S.-spec.
models)Low tire pressure warning lightThe tire pressure monitoring system pro-
vides the driver with a warning message by
sending a signal from a sensor that is
installed in each wheel when tire pressure
is severely low.
The tire pressure monitoring system will
activate only when the vehicle is driven at
speeds above 20 mph (32 km/h). Also, this
system may not react immediately to a
sudden drop in tire pressure (for example,
a blow-out caused by running over a sharp
object).
Starting and operating/Tire pressure monitoring system (TPMS) (U.S.-spec. models)
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
WARNING
.If the low tire pressure warning
light illuminates while driving,
never brake suddenly. Instead,
perform the following procedure.
Otherwise, an accident involving
serious vehicle damage and ser-
ious personal injury could occur.
(1) Keep driving straight ahead
while gradually reducing
speed.
(2) Slowly pull off the road to a
safe place.
(3) Check the pressure for all four
tires and adjust the pressure
to the COLD tire pressure
shown on the vehicle placard
on the door pillar on the
driver’s side.
Even when the vehicle is driven a
very short distance, the tires get
warm and their pressures in-
crease accordingly. Be sure to
let the tires cool thoroughly be-
fore adjusting their pressures to
the standard values shown on the
tire placard. Refer to“Tires and
wheels”F11-30. The tire pres-
sure monitoring system does not
function when the vehicle is sta-tionary. After adjusting the tire
pressures, increase the vehicle
speed to at least 20 mph (32 km/h)
to start the TPMS rechecking of
the tire inflation pressures. If the
tire pressures are now above the
severe low pressure threshold,
the low tire pressure warning
light should turn off a few min-
utes later.
If this light still illuminates while
driving after adjusting the tire
pressure, a tire may have signifi-
cant damage and a fast leak that
causes the tire to lose air rapidly.
If you have a flat tire, refer to“Flat
tires”F9-5.
.When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/trans-
mitter being transferred, the low
tire pressure warning light will
illuminate steadily after blinking
for approximately one minute.
This indicates the TPMS is unable
to monitor all four road wheels.
Contact your SUBARU dealer as
soon as possible for tire and
sensor replacement and/or sys-
tem resetting.
.When a tire is repaired with liquid
sealant, the tire pressure warningvalve and transmitter may not
operate properly. If a liquid sea-
lant is used, contact your nearest
SUBARU dealer or other qualified
service shop as soon as possi-
ble. Make sure to replace the tire
pressure warning valve and
transmitter when replacing the
tire. You may reuse the wheel if
there is no damage to it and if the
sealant residue is properly
cleaned off. Do not inject any tire
liquid or aerosol tire sealant into
the tires, as this may cause a
malfunction of the tire pressure
sensors. If the light illuminates
steadily after blinking for ap-
proximately one minute,
promptly contact a SUBARU
dealer to have the system in-
spected.
CAUTION
Do not place metal film or any metal
parts in the trunk. This may cause
poor reception of the signals from
the tire pressure sensors, and the
tire pressure monitoring system will
not function properly.
–CONTINUED–
Starting and operating/Tire pressure monitoring system (TPMS) (U.S.-spec. models)
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7

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
BSD/RCTA (if equipped)The BSD/RCTA consists of rear radar with
Blind Spot Detection and Rear Cross
Traffic Alert.
These functions enable the system to
detect objects or vehicles to the rear,
drawing attention to the driver when
changing a lane or when driving in reverse.
WARNING
The driver is responsible for driving
safely. Always be sure to check the
surroundings with your eyes when
changing lanes or reversing the
vehicle.
The system is designed to assist the
driver in changing lanes or rever-
sing safely by monitoring the rear
and side areas of the vehicle. How-
ever, you cannot rely on this system
alone in assuring the safety during a
lane change or reversing. Overcon-
fidence in this system could result in
an accident and lead to serious
injury or death. Since the system
operation has various limitations,
the flashing or illumination of the
BSD/RCTA approach indicator light
may be delayed or it may not operate
at all even when a vehicle is presentin a neighboring lane or approach-
ing from either side.
The driver is responsible for paying
attention to the rear and side areas
of the vehicle.
&System featuresBSD/RCTA consists of the following func-
tions.
.To detect a vehicle in a blind spot on an
adjacent lane or a vehicle approaching at
high speed while driving the vehicle (Blind
Spot Detection)
.To detect a vehicle approaching from
the right or left while reversing the vehicle
(Rear Cross Traffic Alert)
The system uses radar sensors for the
following features.NOTEThe BSD/RCTA radar sensor has been
certified by the radio wave related laws
of the U.S. and Canada. When driving in
other countries, certification of the
country where the vehicle is driven
must be obtained. For certification in
the U.S. and Canada, refer to“Certifica-
tion for the BSD/RCTA”F7-64.!Blind Spot Detection (BSD)
1) Operating rangeThe system warns the driver of dangers as
follows.
.If the system detects vehicles in the
driver’s blind spots, the BSD/RCTA ap-
proach indicator light(s) on the outside
mirror(s) will illuminate.
.If the driver operates the turn signal
lever to the side where the BSD/RCTA
approach indicator light is illuminated, the
corresponding BSD/RCTA approach indi-
cator light will flash.
–CONTINUED–
Starting and operating/BSD/RCTA
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7

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
!Lane Change Assist (LCA)1) Operating rangeThe system warns the driver of dangers as
follows.
.If the system detects vehicles ap-
proaching at high speeds in the neighbor-
ing lanes, the BSD/RCTA approach indi-
cator light(s) on the outside mirror(s) will
illuminate.
.If the driver operates the turn signal
lever to the side where the BSD/RCTA
approach indicator light is illuminated, the
corresponding BSD/RCTA approach indi-
cator light will flash.!Rear Cross Traffic Alert (RCTA)
1) Operating rangeThe system notifies the driver of another
vehicle approaching from either side when
driving in reverse. This feature helps the
driver check the rear and side areas of the
vehicle when moving backward.
If the system detects a vehicle approach-
ing from either side while moving back-
ward, it warns the driver of dangers in the
following way.
.The BSD/RCTA approach indicator
light(s) on the outside mirror(s) flashes.
.A warning buzzer sounds.!Limitations of the detectability of
RCTA
Since the detectability of RCTA is limited,
the RCTA may not operate properly in
angled parking.
Example 1
1) The detection range of the radar sensors
2) Area out of detection range of the radar
sensors
A) Vehicle that may not be detected
B) Parked vehicle
WARNING
An approaching vehicle (A) may not
be detected because the detection
range is limited by the parked vehi-
cle (B). Always be sure to check the
surroundings with your eyes when
Starting and operating/BSD/RCTA
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
reversing the vehicle.Example 2
1) The detection range of the radar sensors
C) Vehicle that may be detectedNOTEThe system may detect that a vehicle
(C) is passing in front of your vehicle.
Always be sure to check the surround-
ings with your eyes when reversing the
vehicle.
&System operation!Operating conditions
The BSD/RCTA will operate when all of the
following conditions are met.
.The ignition switch is in the“ON”
position.
.The BSD/RCTA warning indicator and
BSD/RCTA OFF indicator are turned off.
.The vehicle speed is above 7 mph (12
km/h) (except when reversing).
.The shift lever/select lever is in the“R”
position (RCTA only).
The BSD/RCTA will not operate in the
following situations.
.The BSD/RCTA OFF indicator is on.
.The vehicle speed is below 6 mph (10
km/h) even when the BSD/RCTA OFF
indicator remains off (except when rever-
sing).NOTE.When a malfunction occurs in the
system (including the BSD/RCTA ap-
proach indicator light), the BSD/RCTA
will stop operating and the BSD/RCTA
warning indicator will appear.
.If the BSD/RCTA warning indicator
appears, exercise proper caution. For
details, refer to“BSD/RCTA warning
indicator”F7-62..In the following cases, the BSD/
RCTA will temporarily stop operating
(or may stop operating) and the BSD/
RCTA warning indicator will appear.
–When the radar sensor becomes
significantly misaligned (If the or-
ientation of the radar sensor is
shifted for any reason, readjust-
ment is required. Have the sensor
adjusted at a SUBARU dealer.)
–When a large amount of snow or
ice sticks to the rear bumper sur-
face around the radar sensors
–When the vehicle is driven on a
snow-covered road or in an envir-
onment in which there are no ob-
jects around (such as in a desert) for
a prolonged period of time
–When the temperature around the
radar sensors increases exces-
sively due to long driving on uphill
grades in the summer, etc.
–When the temperature around the
radar sensors becomes extremely
low
–When the vehicle battery voltage
lowers
–When the vehicle voltage ex-
ceeds the battery voltage rating
The BSD/RCTA will resume opera-
tion once these conditions are cor-
–CONTINUED–
Starting and operating/BSD/RCTA
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
rected, and the BSD/RCTA warning
indicator will disappear. However, if
the BSD/RCTA warning indicator
appears for a prolonged period of
time, have the system inspected at a
SUBARU dealer as soon as possible.
.The detectability of the radar sen-
sors is restricted. The BSD/RCTA de-
tection may be impaired and the system
may not operate properly under the
following conditions.
–When the rear bumper around the
radar sensors is distorted
–When ice, snow or mud adheres
to the rear bumper surface around
the radar sensors
–When stickers, etc. are affixed on
the areas of the radar sensors on
the rear bumper
–During adverse weather condi-
tions such as rain, snow or fog
–When driving on wet roads such
as snow-covered roads and through
puddles
.The radar sensors may not detect or
may have difficulty detecting the fol-
lowing vehicles and objects.
–Small motorcycles, bicycles, pe-
destrians, stationary objects on the
road or road side and etc.
–Vehicles with body shapes thatthe radar may not reflect (vehicles
with lower body height such as
sports cars or a trailer with no
cargo)
–Vehicles that are not approaching
your vehicle even though they are in
the detection area (either on a
neighboring lane to the rear or be-
side your vehicle when reversing)
(The system determines the pre-
sence of approaching vehicles
based on data detected by the radar
sensors.)
–Vehicles traveling at significantly
different speeds
–Vehicles driving in parallel at al-
most the same speed as your vehi-
cle for a prolonged time
–Oncoming vehicles
–Vehicles in a lane beyond the
neighboring lane
–Vehicles travelling at a signifi-
cantly lower speed that you are
trying to overtake
.On a road with extremely narrow
lanes, the system may detect vehicles
driving in a lane next to the neighboring
lane.
&BSD/RCTA approach indica-
tor light/warning buzzerWhile the BSD/RCTA is active, the follow-
ing item(s) will operate to alert the driver:
.The BSD/RCTA approach indicator
light (when there are vehicles in the
neighboring lanes).
.The BSD/RCTA approach indicator
light and warning buzzer (when a vehicle
is approaching from the left or right side
while reversing)
!BSD/RCTA approach indicator lightBSD/RCTA approach indicator lightIt is mounted on each side of the outside
mirrors.
The indicator light will illuminate when a
vehicle approaching from behind is de-
Starting and operating/BSD/RCTA
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