sensor TOYOTA AVALON 2022 Workshop Manual

3234-5. Using the driving support systems
4
Driving
■Handling the radar sensors
P. 282• When backing out of a shallow angle
parking spot
• Vehicles that the sensors cannot detect due to obstructions
• When backing up on a slope with a sharp change in grade
• When a vehicle turns into the detec- tion area

3294-5. Using the driving support systems
4
Driving
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
◆Adaptive Variable Suspension System (if equipped)
By independently controlling the damping force of the shock
absorbers for each of the 4 wheels according to the road and dr iv-
ing conditions, this system helps riding comfort with superior vehi-
cle stability, and helps good vehicle posture ( P. 3 2 4 )
◆The Secondary Collision Brake
When the SRS airbag sensor detects a collision and the system
operates, the brakes and stop li ghts are automatically controlled to
reduce the vehicle speed and hel p reduce the possibility of further
damage due to a secondary collision.
◆Dynamic Torque Control AWD system (if equipped)
Automatically switches from fron t-wheel drive to all-wheel drive
(AWD) according to the driving conditions, helping to ensure re li-
able handling and stability. Ex amples of conditions where the s ys-
tem will switch to AWD are when cornering, going uphill, starting off
or accelerating, and when the road surface is slippery due to s now,
rain, etc.
The slip indicator light will flash
while the TRAC/VSC systems are
operating.
When the TRAC/VSC systems are operating

3324-5. Using the driving support systems
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRA C and
hill-start assist control systems
● A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just aft er the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
● Any of the following conditions may occur when the above system s are
operating. None of these indicates that a malfunction has occur red.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a s top.
• The brake pedal may pulsate slightly after the ABS is activate d.
• The brake pedal may move down slightly after the ABS is activa ted.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring so und) may be
heard. This does not indicate a malfunction.
■ Active Cornering Assist operation sounds and vibrations
When the Active Cornering Assist is operated, operation sounds and vibra-
tions may be generated from the brake system, but this is not a malfunction.
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
● When the engine switch is turned off
● If only the TRAC system is turned off, the TRAC will turn on wh en vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-e nabling will
not occur when vehicle speed increases.
■ Operating conditions of Active Cornering Assist
The system operates when the following occurs.
●TRAC/VSC can operate
● The driver is attempting to accelerate while turning
● The system detects that the vehicle is sliding to the outer sid e
● The brake pedal is released
■ Secondary Collision Brake operating conditions
The system operates when the SRS airbag sensor detects a collis ion while
the vehicle is in motion.
However, the system does not operate in any of the following si tuations.
● The vehicle speed is below 6 mph (10 km/h)
● Components are damaged

4587-2. Steps to take in an emergency
(Flashes or
illuminates)
PCS warning light
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Col-
lision System).
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily
unavailable, corrective action may be necessary.
 Follow the instructions displayed on the multi-infor-
mation display. (P. 226, 465)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 242
(If equipped)
(Flashes)
ICS OFF indicator
When a buzzer sounds:
Indicates a malfunction in the Intelligent Clearance Sonar
system
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Clear the dirt, etc.
Slip indicator
Indicates a malfunction in:
• The VSC (Vehicle Stability Control) system;
• The TRAC (Traction Control) system; or
• The ABS
The light will flash when the VSC or TRAC
system is oper-
ating.
 Have the vehicle inspected by your Toyota dealer
immediately.
Low fuel level warning light
For 2WD models
Indicates that remaining fuel is approximately 2.2 gal. (8.3
L, 1.6 Imp. gal.)
*3
Indicates that remaining fuel is approximately 2.4 gal. (9.1
L, 2.0 Imp. gal.)
For AWD models
Indicates that remaining fuel is approximately 2.2 gal. (8.2
L, 1.8 Imp. gal.)
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

4607-2. Steps to take in an emergency
*5: Rear passenger’s seat belt buzzer:The rear passengers’ seat belt warning buzzer sounds to alert t he rear
passenger that his or her seat belt is not fastened. If the sea t belt is unfas-
tened, the buzzer sounds intermittently for a certain period of time, after
the seat belt is fastened and unfastened and the vehicle reache s a certain
speed.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle
switch, front passenger occupant classification system (ECU and sensors),
“AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, seat belt preten-
sioners, airbags, interconnecting wiring and power sources. (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 malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Electric power steering system w arning light (warning buzzer)
When the battery charge becomes insufficient or the voltage tem porarily
drops, the electric power steering system warning light may com e on and the
warning buzzer may sound.

4687-2. Steps to take in an emergency
■If “A New Key has been Registered Contact Your Dealer for Detai ls” is
displayed
This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately one week after a
new electronic key has been registered.
If this message is displayed but you have not had a new electro nic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.
■ When “Headlight System Malfunction Visit Your Dealer” is displa yed
The following systems may be malfunctioning. Have the vehicle i nspected by
your Toyota dealer immediately.
● The LED headlight system
● AHB (Automatic High Beam)
■ If “Radar Cruise Control Unavailable See Owner's Manual” is sho wn
The dynamic radar cruise control with full-speed range system is suspended
temporarily or until the problem shown in the message is resolv ed. (causes
and coping methods: P. 226)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control with full-speed range system c annot be
used temporarily. Use the system when it becomes available agai n.
■ If a message that indicates the mal function of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved.
● PCS (Pre-Collision System)
● LTA (Lane Tracing Assist)
● AHB (Automatic High Beam)
● RSA (Road Sign Assist) (if equipped)
● Dynamic radar cruise control with full-speed range
■ If a message that indicates the malfunction of radar sensor is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 226, 455)
● PCS (Pre-Collision System)
● LTA (Lane Tracing Assist)
● Dynamic radar cruise control with full-speed range (if equipped )

5308-2. Customization
■Automatic light control system (P. 204)
■Lights ( P. 2 0 4 )
*: Except for Canada
■
Intuitive parking assist* (  P. 295)
*: If equipped
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
OO60 seconds
90 seconds
12
FunctionDefault settingCustomized setting
Daytime running light
systemOnOff*OO
Welcome lightingOnOff—O
Windshield wiper linked
headlight illuminationOnOff—O
12
FunctionDefault settingCustomized setting
Detection distance of the
front center sensorFarNear—O
Detection distance of the
rear center sensorFarNear—O
12

554What to do if... (Troubleshooting)
●The seat belt reminder light is flashing
Are the driver and the passenger wearing the seat belts? (P. 459)
●The parking brake indicator is on
Is the parking brake released? (P. 198)
Depending on the situation, other types of warning buzzer may also sound.
( P. 455, 465)
●Did anyone inside the vehicle open a door during setting the al arm?
The sensor detects it and the alarm sounds. ( P. 80)
Do one of the following to stop the alarm: • Unlock the doors.
• Open the trunk using the entry function or wireless remote con trol.
• Turn the engine switch to ACCESSORY or IGNITION ON mode, or st art
the engine.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 465)
●When a warning light turns on or a warning message is displayed , refer to
P. 455, 465.
●Stop the vehicle in a safe place and replace the flat tire with the spare
tire. ( P. 470)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 495)
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds w hen leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred If you have a flat tire
The vehicle becomes stuck

566Alphabetical index
Seats ................................. 144, 146Adjustment .................... 144, 146
Adjustment precautions ................. 145, 147
Child seats/child restraint system installation . ............... 63
Cleaning................................ 389
Driving position memory ....... 148
Folding down the rear seatbacks ........................... 146
Front seat heaters................. 349
Head restraints ..................... 153
Power easy access system ......... ....................... 148
Properly sitting in the seat ...... 28
Rear seat heaters ................. 349
Seat ventilators ..................... 349
Secondary Collis ion Brake ..... 329
Sensor
Automatic headlight system ......... ....................... 206
Automatic High Beam
system ......... ....................... 208
Camera sensor ..................... 221
Inside rear view mirror .......... 158
Intuitive parking assist .......... 295
LTA (Lane Tracing Assist)................................. 243
Radar sensor ........................ 221 Service reminder
indicators ................................. 84
Shift lever ................................. 191
Automatic transmission ........ 191
If the shift lever cannot be shifted from P ................ 195
S mode ................................. 192
Shift lock system ..................... 194
Side airbags ............................... 37
Side marker lights ................... 204 Light switch ........................... 204
Replacing light bulbs ............ 441
Side mirrors ............................. 159
Adjusting and folding ............ 159
BSM (Blind Spot Monitor) ..... 279
Heaters ................................. 344
Side turn signal lights Replacing light bulbs ............ 441
Turn signal lever ................... 197
Smart key system .................... 137 Antenna location ................... 137
Entry functions .............. 127, 133
Starting the engine ............... 186
Snow tires ................................ 338
Spare tire .................................. 470 Inflation pressure .................. 506
Storage location.................... 471