steering TOYOTA COROLLA HATCHBACK 2022 (in English) Service Manual

2324-5. Using the driving support systems
WA R N I N G
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not automatically drive the vehicle or
reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always
assume full responsibility for driving
safely by paying careful attention to
the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also,
the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful
attention may lead to an accident, resulting in death or serious injury.
●When not using the LTA system, use the LTA switch to turn the sys-
tem off.
■Situations unsuitable for LTA
system
In the following situations, use the LTA switch to turn the system off. Fail-
ure to do so may lead to an accident,
resulting in death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-ered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust,
etc.
●Vehicle is driven in a temporary
lane or restricted lane due to con-
struction work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc. are
equipped.
●When the tires have been exces- sively worn, or when the tire infla-
tion pressure is low.
●When tires of a size other than
specified are installed.
●Vehicle is driven in traffic lanes
other than that highways and free-
ways.
●When your vehicle is towing a
trailer or during emergency towing
■Preventing LTA system malfunc-
tions and operations performed by mistake
●Do not modify the headlights or
place stickers, etc. on the surface of the lights.
●Do not modify the suspension etc. If the suspension etc. needs to be
replaced, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Do not install or place anything on the hood or grille. Also, do not
install a grille guar d (bull bars, kan-
garoo bar, etc.).
●If your windshield needs repairs,
contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■Conditions in which functions
may not operate properly
In the following situations, the func- tions may not operate properly and
the vehicle may depart from its lane.
Drive safely by always paying careful attention to your surroundings and
operate the steering wheel to correct
the path of the vehicle without relying
solely on the functions.

2344-5. Using the driving support systems
■Lane departure alert function
When the system determines that
the vehicle might depart from its
lane or course*, a warning is dis-
played on the multi-information dis-
play, and a warning buzzer will
sound to alert the driver.
When the warning buzzer sounds,
check the area around your vehicle and
carefully operate the steering wheel to
move the vehicle back to the center of
WA R N I N G
●The vehicle is driven in an area
without white (yellow) lines, such as
in front of a tollgate or checkpoint, or at an intersection, etc.
●The white (yellow) lines are cracked, “Raised pavement
marker” or stones are present.
●The white (yellow) lines cannot be seen or are difficult to see due to
sand, etc.
●The vehicle is driven on a road sur-
face that is wet due to rain, pud-
dles, etc.
●The traffic lines are yellow (which
may be more difficult to recognize than lines that are white).
●The white (yellow) lines cross over a curb, etc.
●The vehicle is driven on a bright surface, such as concrete.
●If the edge of the road is not clear or straight.
●The vehicle is driven on a surface that is bright due to reflected light,
etc.
●The vehicle is driven in an area
where the brightness changes sud-
denly, such as at the entrances and exits of tunnels, etc.
●Light from the headlights of an oncoming vehicle, the sun, etc.
enters the camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road which tilts left or right, or a winding
road.
●The vehicle is driven on an
unpaved or rough road.
●The traffic lane is excessively nar-
row or wide.
●The vehicle is extremely tilted due to carrying heavy luggage or having
improper tire pressure.
●The distance to the preceding vehi-
cle is extremely short.
●The vehicle is moving up and down
a large amount due to road condi-
tions during driving (poor roads or road seams).
●When driving in a tunnel or at night with the headlights off or when a
headlight is dim due to its lens
being dirty or it being misaligned.
●The vehicle is struck by a cross-
wind.
●The vehicle is affected by wind from
a vehicle driven in a nearby lane.
●The vehicle has just changed lanes
or crossed an intersection.
●Tires which differ by structure, man-
ufacturer, brand or tread pattern are used.
●Snow tires, etc. are equipped.
●The vehicle is being driven at
extremely high speeds.
Functions included in LTA
system

235
4
4-5. Using the driving support systems
Driving
the lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
lane departure alert will operate even if
the turn signals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Steering assist function
When the system de termines that
the vehicle might depart from its
lane or course*, the system pro-
vides assistance as necessary by
operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is
not being firmly gripped, a warning is
displayed on the multi-information dis-
play and the function is temporarily
canceled.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
steering assist function will operate
even if the turn signals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Vehicle sway warning function
When the vehicle is swaying within
a lane, the warning buzzer will
sound and a message will be dis-
played on the multi-information dis-
play to alert the driver.

2364-5. Using the driving support systems
■Lane centering function
This function is linked with dynamic
radar cruise control with full-speed
range and provides the required
assistance by operating the steer-
ing wheel to keep the vehicle in its
current lane.
When dynamic radar cruise control with
full-speed range is not operating, the
lane centering function does not oper-
ate.
In situations where the white (yellow)
lane lines are difficult to see or are not
visible, such as when in a traffic jam,
this function will operate to help follow a
preceding vehicle by monitoring the
position of the preceding vehicle.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is
not being firmly gripped, a warning is
displayed on the multi-information dis-
play and the function is temporarily
canceled.
Press the LTA switch to turn the
LTA system on.
The LTA indicator illuminates and a
message is displayed on the multi-infor-
mation display.
Press the LTA switch again to turn the
LTA system off.
When the LTA system is turned on or
off, operation of the LTA system contin-
ues in the same condition the next time
the engine is started.
Turning LTA system on

237
4
4-5. Using the driving support systems
Driving
LTA i n d i c a t o r
The illumination condition of the indica-
tor informs the driver of the system
operation status.
Illuminated in white: LTA system is
operating.
Illuminated in green: Steering wheel
assistance of the st eering assist func-
tion or lane centering function is operat-
ing.
Flashing in orange: Lane departure
alert function is operating.
Operation display of steering
wheel operation support
Displayed when the multi-information
display is switched to the driving sup-
port system info rmation screen.
Indicates that steering wheel assis-
tance of the steering assist function or
lane centering function is operating.
Both outer sides of the lane are dis-
played: Indicates that steering wheel
assist of the lane centering function is
operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of
the steering assist function is operating.
Both outer sides of the lane are flash-
ing: Alerts the driver that their input is
necessary to stay in the center of the
lane (lane centering function).
Lane departure alert function
display
Displayed when the multi-information
display is switched to the driving sup-
port system information screen.
Inside of displayed lines is white
Indicates that the system is recog-
nizing white (yellow) lines or a
course*. When the vehicle departs
from its lane, the white line dis-
played on the side the vehicle
departs from flashes orange.
Indications on multi-infor-
mation display

2384-5. Using the driving support systems
Inside of displayed lines is black
Indicates that the system is not able
to recognize white (yellow) lines or
a course* or is temporarily
canceled.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
Follow-up cruising display
Displayed when the multi-information
display is switched to the driving sup-
port system info rmation screen.
Indicates that steering assist of the lane
centering function is operating by moni-
toring the position of a preceding vehi-
cle.
When the follow-up cruising display is
displayed, if the preceding vehicle
moves, your vehicle may move in the
same way. Always pay careful attention
to your surroundings and operate the
steering wheel as necessary to correct
the path of the vehicle and ensure
safety.
■Operation conditions of each func-
tion
●Lane departure alert function
This function operates when all of the
following conditions are met.
• LTA is turned on. • Vehicle speed is approximately 50
km/h (32 mph) or more.*1
• System recognizes white (yellow) lane
lines or a course*2. (When a white
[yellow] line or course*2 is recognized
on only one side, the system will oper- ate only for the recognized side.)
• Width of traffic lane is approximately 3
m (9.8 ft.) or more. • Turn signal lever is not operated.
(Vehicle with BSM: Except when
another vehicle is in the lane on the
side where the turn signal was oper-
ated)
• Vehicle is not being driven around a
sharp curve. • No system malfunctio ns are detected.
( P.240)*1: The function operates even if the
vehicle speed is less than approxi-
mately 50 km/h (32 mph) when the
lane centering function is operating.
*2: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
●Steering assist function
This function operates when all of the
following conditions are met in addition
to the operation conditions for the lane
departure alert function.
• Setting for “Steering Assist” in of
the multi-information display is set to “ON”. ( P.577)
• Vehicle is not accelerated or deceler-
ated by a fixed amount or more. • Steering wheel is not operated with a
steering force level suitable for chang-
ing lanes.
• ABS, VSC, TRC and PCS are not operating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.239)
●Vehicle sway warning function
This function operates when all of the
following conditions are met.

239
4
4-5. Using the driving support systems
Driving
• Setting for “Sway Warning” in of
the multi-information display is set to “ON”. ( P.577)
• Vehicle speed is approximately 50
km/h (32 mph) or more. • Width of traffic lane is approximately 3
m (9.8 ft.) or more.
• No system malfunctions are detected. ( P.240)
●Lane centering function
This function operates when all of the
following conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Centre” in of th e multi-information
display are set to “ON” ( P.577)
• This function recognizes white (yel-
low) lane lines or the position of a preceding vehicle (except when the
preceding vehicle is small, such as a
motorcycle). • The dynamic radar cruise control with
full-speed range is operating in vehi-
cle-to-vehicle distance control mode. • Width of traffic lane is approximately 3
to 4 m (10 to 13 ft.).
• Turn signal lever is not operated. • Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected. ( P.240)
• Vehicle does not accelerate or
decelerate by a fixed amount or more. • Steering wheel is not operated with a
steering force level suitable for chang-
ing lanes.
• ABS, VSC, TRC and PCS are not operating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.239)
• The vehicle is being driven in the
center of a lane. • Steering assist function is not operat-
ing.
■Temporary cancellation of func-
tions
●When operation conditions are no
longer met, a function may be tempo-
rarily canceled. However, when the
operation conditions are met again, operation of the function is automati-
cally restored. ( P.238)
●If the operation conditions (P.238)
are no longer met while the lane cen-
tering function is operating, the buzzer may sound to indicate that the func-
tion has been temporarily canceled.
■Steering assist function/lane cen-
tering function
●Depending on the vehicle speed, lane
departure situation, road conditions, etc., the driver may not feel the func-
tion is operating or the function may
not operate at all.
●The steering control of the function is
overridden by the driver’s steering wheel operation.
●Do not attempt to test the operation of the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to hear due to external noise, audio play-
back, etc.
●If the edge of the course* is not clear
or straight, the lane departure alert
function may not operate.
●Vehicle with BSM: It may not be possi-
ble for the system to determine if there is a danger of a collision with a vehicle
in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Hands off steering wheel warning
In the following situations, a warning message urging the driver to hold the
steering wheel and the symbol shown in
the illustration are displayed on the multi-information display to warn the
driver. The warning stops when the sys-
tem determines that the driver holds the steering wheel. Always keep your hands

2404-5. Using the driving support systems
on the steering wheel when using this
system, regardless of warnings.
●When the system determines that the
driver is driving without holding the steering wheel whil e the system is
operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned and the function is temporarily canceled.
This warning also operates in the same
way when the driver continuously oper- ates the steering wheel only a small
amount.
●When the system determines that the
vehicle may not turn and instead
depart from its lane while driving around a curve
Depending on the vehicle condition and road conditions, the warning may not
operate. Also, if the system determines
that the vehicle is driving around a curve, warnings will occur earlier than
during straight-lane driving.
●When the system determines that the
driver is driving without holding the
steering wheel while the steering wheel assist of the steering assist
function is operating.
If the driver continues to keep their
hands off of the steering wheel and the
steering wheel assist is operating, the buzzer sounds and the driver is warned.
Each time the buzzer sounds, the con-
tinuing time of the buzzer becomes
longer.
■Vehicle sway warning function
When the system dete rmines that the
vehicle is swaying while the vehicle
sway warning function is operating, a
buzzer sounds and a warning message
urging the driver to rest and the symbol shown in the illustration are simultane-
ously displayed on the multi-information
display.
Depending on the vehicle and road con-
ditions, the warning may not operate.
■Warning message
If the following warning message is dis-
played on the multi-information display
and the LTA indicator illuminates in orange, follow the appropriate trouble-
shooting procedure. Also, if a different
warning message is displayed, follow the instructions displayed on the screen.
●“LTA Malfunction Visit Your Dealer”
The system may not be operating prop-
erly. Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
●“LTA Unavailable”
The system is temporarily canceled due
to a malfunction in a sensor other than
the front camera. Turn the LTA system off, wait for a little while, and then turn
the LTA system back on.
●“LTA Unavailable at Current Speed”
The function cannot be used as the vehicle speed exceeds the LTA opera-
tion range. Drive slower.
■Customization
Function settings can be changed.
( P.577)

241
4
4-5. Using the driving support systems
Driving
*: If equipped
LDA (Lane Depar ture
Alert with steering con-
trol)*
When driving on highways and
freeways with white (yellow)
lane lines, this function alerts
the driver when the vehicle
might depart from its lane or
course*and provides assis-
tance by operating the steering
wheel to keep the vehicle in its
lane or course*.
The LDA system recognizes
white (yellow) lane lines or a
course* using the front cam-
era. Additionally , it detects
preceding vehicles using the
front camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass,
soil, or a curb
WA R N I N G
■Before using LDA system
●Do not rely solely upon the LDA
system. The LDA system does not automatically drive the vehicle or
reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always
assume full responsibility for driving
safely by paying careful attention to
the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also,
the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful
attention may lead to an accident, resulting in death or serious injury.
●When not using the LDA system, use the LDA switch to turn the sys-
tem off.
■Situations unsuitable for LDA
system
In the following situations, use the LDA switch to turn the system off.
Failure to do so may lead to an acci-
dent, resulting in death or serious injury.
●Vehicle is driven on a road surface which is slippery due to rainy
weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-
ered road.
●White (yellow) lines are difficult to
see due to rain, snow, fog, dust,
etc.
●A spare tire, tire chains, etc. are
equipped.
●When the tires have been exces-
sively worn, or when the tire infla- tion pressure is low.

2424-5. Using the driving support systems
WA R N I N G
●When tires of a size other than
specified are installed.
●Vehicle is driven in traffic lanes
other than that highways and free-
ways.
●When your vehicle is towing a
trailer or during emergency towing
■Preventing LDA system malfunc-
tions and operations performed
by mistake
●Do not modify the headlights or
place stickers, etc. on the surface of
the lights.
●Do not modify the suspension etc. If
the suspension etc. needs to be replaced, contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
●Do not install or place anything on
the hood or grille. Also, do not install a grille guard (bull bars, kan-
garoo bar, etc.).
●If your windshield needs repairs,
contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
■Conditions in which functions may not operate properly
In the following situations, the func-
tions may not operate properly and the vehicle may depart from its lane.
Drive safely by always paying careful
attention to your surroundings and operate the steering wheel to correct
the path of the vehicle without relying
solely on the functions.
●Vehicle is being driven around a
sharp curve.
●Objects or patterns that could be mistaken for white (yellow) lines are
present on the side of the road
(guardrails, reflective poles, etc.).
●Vehicle is driven where the road
diverges, merges, etc.
●Repair marks of asphalt, white (yel- low) lines, etc. are present due to
road repair.
●There are shadows on the road that
run parallel with, or cover, the white
(yellow) lines.