sensor TOYOTA SEQUOIA 2019 (in English) Service Manual

2804-5. Using the driving support systems
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WARNING
■Handling the radar sensor
One Blind Spot Monitor sensor is installed inside the left and right side of
the vehicle rear bumper respectively. Observe the following to ensure the
Blind Spot Monitor can function correctly.
● Do not subject the sensor or surrounding area on the bumper to a
strong impact. If the sensor moves even slightly off position, the system
may malfunction and vehicles that enter the detection area may not be
detected. If the sensor or surrounding area is subject to a strong impact,
always have the area inspected by your Toyota dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor or surrounding area on
the bumper.
● Do not modify the sensor or surrounding area on the bumper.
● Do not paint the rear bumper any color other than an official Toyota color.
●Keep the sensor and its surrounding
area on the bumper clean at all times.

2814-5. Using the driving support systems
4
Driving
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The Blind Spot Monitor function uses radar sensors to detect vehicles
that are traveling in an adjacent lane in the area that is not reflected in
the outside rear view mirror (the blind spot), and advises the driver of
the vehicles existence via the outside rear view mirror indicat or.
The areas that vehicles can be detected in are outlined below.
The range of each detection area
is: Approximately 11.5 ft. (3.5 m)
from the side of the vehicle
The first 1.6 ft. (0.5 m) from the
side of the vehicle is not in the
detection area.
Approximately 9.8 ft. (3 m) from
the rear bumper
Approximately 3.3 ft. (1 m) for-
ward of the rear bumper
BSM function
BSM function detection areas

2844-5. Using the driving support systems
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The RCTA functions when your vehicle is in reverse. It can dete ct
other vehicles approaching from the right or left rear of the vehicle. It
uses radar sensors to alert the driver of the other vehicle’s existence
through flashing the outside rear view mirror indicators and so unding
a buzzer.
RCTA function
Approaching vehicles Detection areas
WARNING
■ Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The RCTA function is only an assist and is not a replacement for careful
driving. Driver must be careful when backing up, even when using RCTA
function. The driver’s own visual confirmation of behind you and your vehi-
cle is necessary and be sure there are no pedestrians, other vehicles, etc.,
before backing up. Failure to do so could cause death or seriou s injury.
According to conditions, the system may not function correctly. Therefore
the driver’s own visual confirmation of safety is necessary.

2864-5. Using the driving support systems
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Conditions under which the RCTA function will not detect a vehicle
The RCTA function is not designed to detect the following types of vehicles
and/or objects:
● Small motorcycles, bicycles, pedestrians, etc.
*
●Vehicles approaching from directly behind
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
●Vehicles backing up in the parking space next to your vehicle*
*
: Depending on the conditions, detection of a vehicle and/or obj ect may
occur.
■ Conditions under which the RCTA function may not function corre ctly
● The RCTA function may not detect vehicles correctly in the following situa-
tions:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When mud, snow, ice, a sticker, etc., is covering the sensor o r surround-
ing area on the rear bumper
• When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog
• When multiple vehicles are approaching with only a small gap b etween
each vehicle
• When a vehicle is approaching at high speed
• When your vehicle is towing a trailer

2874-5. Using the driving support systems
4
Driving
SEQUOIA_OM_USA_OM0C013U_19MY• Immediately after the RCTA function is set to on
• Immediately after the engine is started with the RCTA function
is set to on
• When backing up on a slope with a
sharp change in grade
• When backing out of a shallow angle parking spot
• When the sensors cannot detect a vehicle due to obstructions

3755-4. Other interior features
5
Interior features
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WARNING
■While driving the vehicle
Do not adjust the display. Be sure to adjust the display only when the vehi-
cle is stopped.
■ When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in
the neighborhood. Do not violate any local traffic rules while performing cir-
cling calibration.
NOTICE
■To avoid the compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause a malfunction of the compass sensor.
■ To ensure normal operation of the compass
● Do not perform circling calibration of the compass in a place w here the
earth’s magnetic field is subject to interference by artificial magnetic fields.
● During calibration, do not operate electric systems (moon roof, power win-
dows, etc.) as they may interfere with the calibration.

4136-3. Do-it-yourself maintenance
6
Maintenance and care
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Tire pressure warning
system certification
For vehicles sold in the U.S.A.

TRW Automotive
Tire Pressure Monitoring Sensor
FCC ID: GQ4-72T
FCC ID: GQ4-49R
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) This device must accept any interference received,
including interference that may cause undesired operation of th is device.
WARNING: Changes or modifications not expressly approved by TRW
Automotive U.S. LLC could void the user’s authority to operate the equip-
ment.
For vehicles sold in Canada

TRW Automotive
Tire Pressure Monitoring Sensor
Model: 335098
IC: 1470A-53T
MADE IN U.S.A
This device complies with Industry Canada license-exempt RSS st an-
dard(s). Operation is subject to the following two conditions: (1) This
device may not cause harmful int erference, and (2) This device must
accept any interference received, including interference that m ay cause
undesired operation of this device.
Le présent appareil est conforme aux CNR d’Industrie Canada app lica-
bles aux appareils radio exempts de licence. L’exploitation est autorisée
aux deux conditions suivantes : 1. L’appareil ne doit pas produ ire de
brouillage. 2. L’utilisateur de l’appareil doit accepter tout b rouillage
radioélectrique subi, même si le brouillage est susceptible d’en comprom-
ettre le fonctionnement.
WARNING: Changes or modifications not expressly approved by TRW
Automotive U.S. LLC could void the user’s authority to operate the equip-
ment.

4507-2. Steps to take in an emergency
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PCS warning lightWhen the warning light flashes:
Indicates a malfunction in the PCS (Pre-Collision Sys-
tem)
 Have the vehicle inspected by your Toyota dealer
immediately.
When the warning light illuminates:
Indicates that the PCS (Pre-Collision System) is tem-
porarily unavailable, possibly due to either of the fol-
lowing:
• An area around the radar sensor or camera sensor being dirty or covered with condensation, ice, stick-
ers, etc.
 Clear the dirt, condensation, ice, stickers, etc.
(P. 247, 464)
• Radar sensor or camera sensor operational condi- tions (such as temperature, etc.) being not met
 Driving is possible in this case. The PCS (Pre-Col-
lision System) will be enabled if the operational
conditions (such as temperature, etc.) are met
again.
• Either the VSC (Vehicle Stability Control) system or PCS (Pre-Collision System) is disabled or both are
disabled.
 To enable the PCS, ena ble both the VSC system
and PCS. ( P. 238, 304)
(Yellow)
LDA (Lane Departur e Alert) indicator*1
The indicator comes on and a warning message is dis-
played to indicate that the LDA (Lane Departure Alert)
system is not available temporarily or has detected a
malfunction.
 P. 457
Low fuel level warning light
Indicates remaining fuel is approximately 4.0 gal.
(15 L, 3.3 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

4527-2. Steps to take in an emergency
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■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buckle switch, front passenger occu-
pant classification system (ECU and sensors), “AIR BAG ON” indi cator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buck le switch, seat
belt pretensioners, airbags, interconnecting wiring and power s ources.
( P. 38)
■ Front passenger detection sensor, seat belt reminder and warnin g
buzzer
● If luggage is placed on the front passenger seat, the front pas senger detec-
tion sensor may cause the warning light to flash and the warnin g buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the low speed four-wheel drive indicator light or center dif ferential lock
indicator light blinks
Take the specified steps. ( P. 295)
■ Four-wheel drive system warning buzzer
The buzzer indicated that the transfer mode is not selected cor rectly.

4587-2. Steps to take in an emergency
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Indicates a malfunction in the rear height control
air suspension (if equipped)The malfunctioning assist-sensor is flashing.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer
Indicates a malfunction in the SRS airbag system
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the automatic transmis-
sion system
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the Brake Override
system
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the Drive-start control
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the cruise control sys-
tem
• Press the “ON-OFF” button once to deacti-vate the system, and then press the button
again to reactivate the system.
• A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Warning messageDetails/Actions
AIR SUSPENSION
System Malfunction
Visit Your Dealer
SRS Airbag System Malfunction
Visit Your Dealer
CHECK
TRANSMISSION SYSTEM
Brake Override Malfunction
Visit Your Dealer
Drive-Start Control
Malfunction
Visit Your Dealer
Cruise Control Malfunction
Visit Your Dealer