ESP TOYOTA AVALON 2020 (in English) Service Manual

2964-5. Using the driving support systems
WARNING
■Limitations of the Intelligent Clearance Sonar system
Do not overly rely on the system, as doing so may lead to an ac cident.
● The driver is solely responsible for safe driving. Always drive carefully, tak-
ing care to observe your surroundings. The Intelligent Clearanc e Sonar
system is designed to provide support to lessen the severity of collisions.
However, it may not operate in some situations.
● The Intelligent Clearance Sonar system is not designed to stop the vehicle
completely. Additionally, even if the system has stopped the ve hicle, it is
necessary to depress the brake pedal immediately as brake contr ol will be
canceled after approximately 2 seconds.
■ To ensure the Intelligent Clearan ce Sonar system can operate properly
Observe the following precautions regarding the sensors ( P. 287). Failure
to do so may cause a sensor to not operate properly, and may ca use an
accident.
● Do not modify, disassemble or paint the sensors.
● Do not replace a sensor with a part other than a genuine part.
● Do not subject a sensor or its surrounding area to a strong imp act.
● Do not damage the sensors, and always keep them clean.
Observe the following precautions regarding the radar sensors ( P. 264).
Failure to do so may cause a radar sensor to not operate proper ly, and may
cause an accident.
● Do not modify, disassemble or paint the sensors.
● Do not replace a radar sensor with a part other than a genuine part.
● Do not subject a radar sensor or its surrounding area to a stro ng impact.
● Do not damage the radar sensors, and always keep the radar sens ors and
their surrounding area on the bumper clean.
■ Handling the suspension
Do not modify the suspension, as changes to the height or incli nation of the
vehicle may prevent the sensors from detecting objects correctly or cause
the system to not operate or operate unnecessarily.

3034-5. Using the driving support systems
4
Driving
■Situations in which the Rear Cross Traffic Auto Brake function may not
operate properly
In some situations such as the following, this function may not operate prop-
erly.
● Objects and vehicles which the radar sensors are not designed t o detect
• Stationary objects
• Vehicles which are moving away from your vehicle
• Pedestrians, motorcycles, bicycles, etc.
*
• Objects which are extremely close to a radar sensor
• Vehicles which are approaching from the right or left at the r ear of the
vehicle at a traveling speed of less than approximately 5 mph ( 8 km/h)
• Vehicles which are approaching from the right or left at the r ear of the
vehicle at a traveling speed of more than approximately 15 mph (24 km/h)
*: Depending on conditions, detection of a vehicle and/or object may occur.
● Situations in which the radar sensors may not be able to detect an object
• When a sensor or the area around a sensor is extremely hot or cold
• If the rear bumper is covered with ice, snow, dirt, etc.
• If heavy rain or water strikes the vehicle
• When the detection area of a radar sensor is obstructed by an adjacent
vehicle
• If the vehicle is significantly tilted
• When equipment that may obstruct a sensor is installed, such a s a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
• If the suspension has been modified or tires of a size other than specified
are installed
• If the front of the vehicle is raised or lowered due to the ca rried load
• If a sticker or an electronic component, such as a backlit license plate
(especially fluorescent type), fog lights, a fender pole or wir eless antenna
is installed near a radar sensor
• If the orientation of a radar sensor has been changed due to a collision or
other impact or removal and installation
• When multiple vehicles are approaching with only a small gap between each vehicle
• When a vehicle is approaching at high speed
● Situations in which the radar sensor may not detect a vehicle
• When a vehicle approaches from the
right or left at the rear of the vehicle
while you are turning while backing
up
• When turning while backing up

3054-5. Using the driving support systems
4
Driving
Vehicles without AVS (Adaptive Variable Suspension System)
Normal mode
Use for normal driving.
While in Eco drive mode or Sport mode, press the “NORMAL” switch to
change the driving mode to normal mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during
trips that involve frequent accelerating.
When the “ECO” switch is pressed, the “ECO MODE” indicator comes on
in the multi-information display.
Sport mode
Use sport mode when increased acceleration response and precise
handling is desired, for exampl e, when driving on mountain road s.
When the “SPORT” switch is pressed, the “SPORT” indicator comes on in
the multi-information display.
Driving mode select switches
The driving modes can be select ed to suit driving condition.
1
2
3

3074-5. Using the driving support systems
4
Driving
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during
trips that involve frequent accelerating.
When the “ECO” switch is pressed, the “ECO MODE” indicator comes on
in the multi-information display.
Sport mode
• SPORT S mode
Controls the transmission and eng ine to provide quick, powerful
acceleration. This mode is suitable for when agile driving
response is desired, such as when driving on roads with many
curves.
When not in SPORT S mode, if the “SPORT S/S+” switch is pressed ,
the “SPORT S” indicator will come on in the multi-information d isplay.
• SPORT S+ mode
Helps to ensure steering perfo rmance and driving stability by
simultaneously controlling the steering and suspension in addi-
tion to the transmission and engi ne. Suitable for sportier driving.
When in SPORT S mode, if the “SPORT S/S+” switch is pressed, th e
“SPORT S+” indicator will come on in the multi-information disp lay.
FunctionSetting
Powertrain
Normal
Power
Eco
ChassisNormal
Sport
Air conditioning systemNormal
Eco
2
3

3094-5. Using the driving support systems
4
Driving
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces.
◆Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippe ry
road surfaces by controlling steering performance.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicl e or accelerating on slippery roads
◆Active Cornering Assist (ACA) (TRD package)
Helps to prevent the vehicle from sliding to the outer side by per-
forming inner wheel brake control when attempting to accelerate
while turning
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when start -
ing on an uphill
Driving assist systems
To keep driving safety and perf ormance, the following systems
operate automatically in respon se to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heav ily when operating the vehi-
cle.

3144-5. Using the driving support systems
■Secondary Collision Brake automatic cancellation
The system is automatically canceled in any of the following si tuations.
● The vehicle speed drops below approximately 6 mph (10 km/h)
● A certain amount of time elapses during operation
● The accelerator pedal is depressed a large amount
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or sto p the vehicle
and turn the engine off. The EPS system should return to normal within 10
minutes.
WARNING
■ The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded (suc h as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or s lick roads.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, espe cially in the
following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and p ower may be
lost.
■ Active Cornering Assist does not operate effectively when
● Do not overly rely on Active Cornering Assist. Active Cornering Assist may
not operate effectively when accelerating down slopes or driving on slip-
pery road surfaces.
● When Active Cornering Assist frequently operates, Active Corner ing
Assist may temporarily stop operating to:
• Ensure proper operation of the brakes, TRAC and VSC.
• Prevent the brakes from overheating.

3154-5. Using the driving support systems
4
Driving
WARNING
■Hill- start assist control does not operate effectively when
● Do not overly rely on hill-start assist control. Hill-start ass ist control may
not operate effectively on steep inclines and roads covered wit h ice.
● Unlike the parking brake, hill-st art assist control is not intended to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
■ When the TRAC/VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the r oad condi-
tions. As these are the systems to help ensure vehicle stabilit y and driving
force, do not turn the TRAC/VSC systems off unless necessary.
■ Replacing tires
Make sure that all tires are of the specified size, brand, trea d pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if di fferent tires
are installed on the vehicle.
Contact your Toyota dealer for further information when replaci ng tires or
wheels.
■ Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspensio n will affect
the driving assist systems, and may cause a system to malfuncti on.
■ Secondary Collision Brake
Do not rely solely upon the Secondary Collision Brake. This sys tem is
designed to help reduce the possibility of further damage due t o a second-
ary collision, however, that effect changes according to variou s conditions.
Overly relying on the system may result in death or serious inj ury.

3295-1. Using the air conditioning system and defogger
5
Interior features
: If equipped
Heated steering wheel/seat heaters/seat
ventilator s

Heated steering wheel and seat heaters heat the side grips of t he
steering wheel and seats, respectively. Seat ventilators maintain
good ventilation by pulling ai r through the seat upholstery.
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the hea ter is on:
• Babies, small children, the elderly, the sick and the physical ly chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sle eping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or ove rheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent battery discharge, do not use the functions when the engine is
off.

3706-1. Maintenance and care
■Caring for leather areas
Toyota recommends cleaning the interior of the vehicle at least twice a year to
maintain the quality of the vehicle's interior.
■ Shampooing the carpets
There are several commercial foaming-type cleaners available. U se a sponge
or brush to apply the foam. Rub in overlapping circles. Do not use water.
Wipe dirty surfaces and let them dry. Excellent results are obt ained by keep-
ing the carpet as dry as possible.
■ Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge . Also
check the belts periodically for excessive wear, fraying or cut s.
WARNING
■Water in the vehicle
● Do not splash or spill liquid in the vehicle.
Doing so may cause electrical components, etc., to malfunction or catch
fire.
● Do not get any of the SRS components or wiring in the vehicle i nterior wet.
( P. 38)
An electrical malfunction may cause the airbags to deploy or no t function
properly, resulting in death or serious injury.
● Vehicles with wireless charger:
Do not let the wireless charger ( P. 346) get wet. Failure to do so may
cause the charger to become hot and cause burns or could cause electric
shock resulting in death or serious injury.
■ Cleaning the interior (esp ecially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel m ay reflect
off the windshield, obstructing the driver’s view and leading t o an accident,
resulting in death or serious injury.

3716-1. Maintenance and care
6
Maintenance and care
NOTICE
■Cleaning detergents
● Do not use the following types of detergent, as they may discol or the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Areas other than the seats and steering wheel: Organic substan ces
such as benzene or gasoline, alkaline or acidic solutions, dye, and
bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-
hol
• Steering wheel: Organic substances, such as thinner, and clean er that
contains alcohol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended perio ds of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
■ Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if wate r comes
into contact with electrical components such as the audio syste m above or
under the floor of the vehicle. Water may also cause the body to rust.
■ When cleaning the inside of the windshield
Do not allow glass cleaner to contact the lens. Also, do not to uch the lens.
( P. 220)
■ Cleaning the inside of the rear window
● Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires or antenna. Use a cloth
dampened with lukewarm water to gently wipe the window clean. Wipe the
window in strokes running parallel to the heater wires or antenna.
● Be careful not to scratch or damage the heater wires or antenna .