ABS LEXUS ES350 2021 User Guide

2484-5. Using the driving support systems
■Automatic system cancelation of hill-
start assist control
The hill-start assist control will turn off in any
of the following situations:
●The shift lever is shifted to P or N.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●2 seconds at maximum elapsed after the
brake pedal is released.
■Sounds and vibrations caused by the
ABS, brake assist, VSC, TRAC 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 after 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 systems are oper-
ating. None of these indicates that a mal-
function has occurred.
•Vibrations may be fe lt through the vehi-
cle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly
after the ABS is activated.
■Active Cornering Assist operation
sounds and vibrations
When the Active Cornering Assist is oper-
ated, operation sounds and vibrations may
be generated from the brake system, but
this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■Automatic reactivation of TRAC and
VSC systems
After turning the TRAC and VSC systems
off, the systems will be automatically 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 when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases.
■Secondary Collision Brake operating
conditions
The system operates when the SRS airbag
sensor detects a collision while the vehicle
is in motion.
However, the system does not operate in
any of the following situations.
●The vehicle speed is below 6 mph (10
km/h)
●Components are damaged
■Secondary Collision Brake automatic
cancellation
The system is automatically canceled in any
of the following situations.
●The vehicle speed drops below approxi-
mately 6 mph (10 km/h)
●A certain amount of time elapses during
operation
●The accelerator pedal is depressed a
large amount
■Operating conditions of Active Corner-
ing 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
drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating when there is frequent steering
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, re frain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should

2494-5. Using the driving support systems
4
Driving
return to normal within 10 minutes.
■If a message about AWD is shown on the multi-information display
Perform the following actions.
MessageDetails/Actions
“AWD System Overheated
Switching to 2WD Mode”
AWD system is overheating.
 Perform the following actions.
 Reduce the vehicle speed until the message disappears.
 Stop the vehicle in a safe pl ace and let the engine idle.
Once the display message on the multi-information display
turns off, there is no problem continuing to drive.
If the message does not disappear, have your vehicle
checked by your Lexus dealer immediately.
“AWD System Overheated
2WD Mode Engaged”
The vehicle switched from all-wheel drive (AWD) to front
wheel drive due to overheating.
 Perform the following actions.
 Reduce the vehicle speed until the message disappears.
 Stop the vehicle in a safe pl ace and let the engine idle.
Once the display message on the multi-information display
turns off, the AWD system returns to normal.
If the message does not disappear, have your vehicle
checked by your Lexus dealer immediately.
“AWD System Malfunction
2WD Mode Engaged Visit
Your Dealer”A malfunction occurred in the AWD system.
 Have your vehicle checked by your Lexus dealer imme-
diately.
WARNING
■The ABS does not operate effectively
when
●The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●The vehicle hydroplanes while driving
at high speed on wet or slick roads.
■Stopping distance when the ABS is
operating may exceed that of normal
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, especially 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 pot-
holes or uneven surfaces

2504-5. Using the driving support systems
WARNING
■TRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating.
Drive the vehicle carefully in conditions
where stability and power may be lost.
■Active Cornering Assist does not
operate effectively when
●Do not overly rely on Active Corner-
ing Assist. Active Cornering Assist
may not operate effectively when
accelerating down slopes or driving on
slippery road surfaces.
●When Active Cornering Assist fre-
quently operates, Active Cornering
Assist may temporarily stop operating
to ensure proper operation of the
brakes, TRAC and VSC.
■Hill- start assist control does not
operate effectively when
●Do not overly rely on hill-start assist
control. Hill-start assist control may
not operate effectively on steep
inclines and roads covered with ice.
●Unlike the parking brake, hill-start
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 vehi-
cle 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. Re ckless 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 road condi-
tions. As these are the systems to help
ensure vehicle stability and driving force,
do not turn the TRAC/VSC systems off
unless necessary.
■Secondary Collision Brake
Do not rely solely upon the Secondary
Collision Brake. This system is designed
to help reduce the possibility of further
damage due to a secondary collision,
however, that effect changes according
to various conditions. Overly relying on
the system may result in death or serious
injury.
■Replacing tires
Make sure that all ti res are of the speci-
fied size, brand, tread pattern and total
load capacity. In addition, make sure that
the tires are inflated to the recom-
mended tire inflation pressure level.
The ABS, TRAC and VSC systems will
not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further
information when replacing tires or
wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or
modifying the suspensi on will affect the
driving assist systems, and may cause a
system to malfunction.

3236-3. Do-it-yourself maintenance
6
Maintenance and care
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■Adding fluid
Make sure to check the fluid type and
prepare the necessary items.
 Fluid type
FMVSS No.116 DOT 3 or SAE J1703
brake fluid
FMVSS No.116 DOT 4 or SAE J1704
brake fluid
Item
Clean funnel
■Brake fluid can absorb moisture from
the air
Excess moisture in the brake fluid can
cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals
are not corroded and that there are no
loose connections, cracks, or loose
clamps.
Terminals
Hold-down clamp
WARNING
■When the engine is hot
Do not touch the radiator or condenser
as they may be hot and cause serious
injuries, such as burns.
Checking and adding the brake
fluid
WARNING
■When filling the reservoir
Take care as brake fluid can harm your
hands and eyes and damage painted sur-
faces.
If fluid gets on your hands or in your eyes,
flush the affected area with clean water
immediately.
If you still experience discomfort, see a
doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go
down slightly as the brake pads wear out
or when the fluid leve l in the accumulator
is high.
If the reservoir needs frequent refilling,
there may be a serious problem.
Checking the battery
A
B

3637-2. Steps to take in an emergency
7
When trouble arises
■ABS warning light (warning buzzer)
■Brake Override System warning light/Drive-Start Control warning light*
(warning buzzer)
*: This light illuminates on the multi-information display.
■Electric power steering system warning light (warning buzzer)
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
 The ABS; or
 The brake assist system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Brake Override System is malfunctioning;
 Drive-Start Control is operating; or
 Drive-Start Control is malfunctioning
 Follow the instructions displayed on the multi-information display.
When a buzzer does not sound:
Brake Override System is operating
 Release the accelerator pedal and depress the brake pedal.
Warning lightDetails/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system
Have the vehicle inspected by your Lexus dealer immediately.

3697-2. Steps to take in an emergency
7
When trouble arises
leaks and tire inflation pressure changes
caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with
a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though the flat
tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The
tire pressure warning lig ht will go off after a
few minutes.
■Conditions that the tire pressure warn-
ing system may not function properly
 P.329
WARNING
■If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer.
The vehicle will become extremely
unstable during braking, and the ABS
system may fail, which could cause an
accident resulting in death or serious
injury.
■When the electric power steering
system warning light comes on
When the light comes on yellow, the
assist to the power steering is restricted.
When the light comes on red, the assist
to the power steering is lost and handling
operations of the steering wheel become
extremely heavy.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using more
force than usual.
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
Failure to do so could cause a loss of
vehicle control and result in death or
serious injury.
●Stop your vehicle in a safe place as
soon as possible. Check and adjust the
tire inflation pre ssure immediately.
●If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is prob able that you have
a flat tire. Check the tire s. If a tire is flat,
change it with the spare tire and have
the flat tire repaired by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and brak-
ing.
If the vehicle tires deteriorate, you
could lose control of the steering
wheel or the brakes.
■If a blowout or sudden air leakage
should occur
The tire pressure warning system may
not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if pro-
vided), should be checked monthly when
cold and inflated to the inflation pressure
recommended by the vehicle manufac-
turer on the vehicle pl acard or tire infla-
tion pressure label (tire and load
information label). (If your vehicle has
tires of a different size than the size indi-
cated on the vehicle placard or tire infla-
tion pressure label [tire and load
information label], you should determine
the proper tire inflation pressure for
those tires.)

3837-2. Steps to take in an emergency
7
When trouble arises
1Replace a rear tire with the compact
spare tire.
2 Replace the flat front tire with the tire
removed from the rear of the vehicle.
3 Fit tire chains to the front tires.
WARNING
■When using the compact spare tire
●Remember that the compact spare tire
provided is specifically designed for
use with your vehicle. Do not use your
compact spare tire on another vehicle.
●Do not use more than one compact
spare tire simultaneously.
●Replace the compact spare tire with a
standard tire as soon as possible.
●Avoid sudden acceleration, abrupt
steering, sudden braking and shifting
operations that cause sudden engine
braking.
■When the compact spare tire is
attached
The vehicle speed may not be correctly
detected, and the following systems may
not operate correctly:
• ABS & Brake assist
•VSC
•TRAC
• Dynamic radar cruise control with full- speed range
• PCS (Pre-Collision System)
•EPS
• LTA (Lane Tracing Assist)
• Panoramic view monitor (if equipped)
• Lexus parking assist monitor (if equipped)
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
• BSM (Blind spot monitor) (if equipped)
• Automatic high Beam
Also, not only can the following system
not be utilized fully, bu t it may even nega-
tively affect the drive-train components:
• AWD system (if equipped)
■Speed limit when using the compact
spare tire
Do not drive at speeds in excess of 50
mph (80 km/h) when a compact spare
tire is installed on the vehicle.
The compact spare tire is not designed
for driving at high speeds. Failure to
observe this precaution may lead to an
accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
■Be careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spar e tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
■Driving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle
body and adversely affect driving perfor-
mance.

449Alphabetical index
Alphabetical index
A
A/C ................................................................... 263Air conditioning filter ............................... 339
Automatic air conditioning system ... 263
ABS (Anti-lock Brake System).............. 246 Function .......................................................... 246
Warning light ............................................... 363
ACA (Active Cornering Assist) ........... 246
Active Cornering Assist (ACA) ........... 246
Adaptive Front-lighting System (AFS) 160
Adaptive Variable Suspension System247
AFS (Adaptive Front-lighting System) 160
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ...................................... 362
Air conditioning filter ................................. 339
Air conditioning system ............................ 263 Air conditioning filter ............................... 339
Automatic air conditioning system ... 263
Alarm ................................................................... 63 Alarm .................................................................. 63
Warning buzzer ...........................................361
Anchor brackets ..................................... 44, 53
Antennas (smart access system with push- button start) ................................................. 106
Anti-lock Brake System (ABS).............. 246 Function .......................................................... 246
Warning light ...............................................363
Approach warning........................................201
Armrest............................................................ 290
Assist grips ..................................................... 290
Audio system-linked display ...................... 82
Automatic headlight leveling system ....159
Automatic High Beam ................................. 161
Automatic light control system............... 158
Automatic transmission ..............................149 Paddle shift switches .........................151, 152
S mode ............................................................. 152
Auxiliary box.................................................. 279
Average fuel economy..................................79
Average vehicle speed .................................79
B
Back-up lights Replacing light bulbs ................................346
Battery Checking ....................................................... 323
If the battery is discharged ................... 389
Preparing and checking before winter........................................................................... 251
Warning light ...............................................362
Blind Spot Monitor (BSM)....................... 205
Boost gauge........................................................81
Brake Brake hold ...................................................... 156
Fluid.................................................................. 404
Parking brake ............................................... 154
Warning light ................................................ 361
Brake assist .................................................... 246
Break-in tips.....................................................135
Brightness control Instrument panel light control......... 72, 76
BSM (Blind Spot Monitor)....................... 205

Alphabetical index459
Tire information ............................................. 410Glossary........................................................... 414
Size...................................................................... 412
Tire identification number ....................... 412
Uniform Tire Quality Grading..............413
Tire pressure warning system ................ 328 Function .......................................................... 328
Initializing ....................................................... 332
Installing tire pressure warning valves and transmitters ........................................331
Registering ID codes ............................... 334
Warning light ...............................................365
Tires................................................................... 326 Chains ............................................................. 252
Checking ....................................................... 326
If you have a flat tire .................................. 375
Inflation pressure........................................ 336
Information ..................................................... 410
Replacing ....................................................... 375
Rotating tires ................................................ 328
Size....................................................................405
Snow tires ........................................................251
Spare tire........................................................ 375
Tire inflation pressu re display function
......................................................................... 328
Tire pressure warning system ............. 328
Warning light ...............................................365
Tools.................................................................. 376
Top tether strap............................................... 53
Total load capacity ...................................... 398
Towing Dinghy towing ............................................... 142
Emergency towing ...................................355
Towing eyelet ............................................. 358
Trailer towing ................................................. 142
TRAC (Traction Control) ........................ 246
Traction Control (TRAC) ........................ 246
Trailer towing .................................................. 142
Transmission Automatic transmission ............................149
Driving Mode Select switch...................210
Paddle shift switches ......................... 151, 152 S mode ............................................................. 152
Trip meters .................................................. 71, 76
Trunk .................................................................... 99 Hands Free Power Trunk Lid............... 102
Internal trunk release lever..................... 103
Power trunk lid ...............................................99
Smart access system with push-button start ................................................................... 101
Trunk closer switch .................................... 102
Trunk easy closer........................................ 103
Trunk features ............................................. 280
Trunk grip ....................................................... 103
Trunk light ....................................................... 103
Trunk opener main switch...................... 105
Trunk opener switch ................................... 101
Trunk storage extension...........................291
Wireless remote control ........................... 101
Trunk light ........................................................ 103
Turn signal lights ............................................153 Replacing light bulbs ................................346
Turn signal lever .......................................... 153
U
USB charging ports.................................... 282
V
Vanity lights......................................................281
Vanity mirrors .................................................281
Vehicle data recordings ..................................6
Vehicle identification number ................ 398
Vehicle Stability Control (VSC) ........... 246
Ventilators (seat ventilators)................... 270
VSC (Vehicle Stability Control) ........... 246
W
Warning buzzersABS ...................................................................363
Airbags............................................................362
Approach warning..................................... 201
Brake hold .................................................... 368

460Alphabetical index
Brake Override System ......................... 363
Brake system .................................................361
Charging system ....................................... 362
Downshifting ....................................... 152, 152
Drive-Start Control .................................. 363
Electric power steering .......................... 363
Engine ............................................................. 362
High coolant temperature ......................361
Intuitive parking assist................... 219, 365
Low engine oil pressure......................... 362
LTA (Lane Tracing Assist)......... 184, 365
Open door..............................................96, 98
Open hood...................................................... 98
Open trunk ...................................................... 98
Open window ...............................................125
PKSA (Parking Support Alert) ............. 213
PKSB (Parking Support Brake) .........366
Pre-collision braking.................................. 177
RCD (Rear Camera Detection) ........366
RCTA (Rear Cross Traffic Alert) ......366
Seat belt .......................................................... 364
Warning lights.................................................361 ABS .................................................................. 363
Brake hold operated indicator ...........368
Brake Override System ......................... 363
Brake system .................................................361
Charging system ....................................... 362
Drive-Start Control .................................. 363
Electric power steering .......................... 363
High coolant temperature ......................361
Intuitive parking assist OFF indicator.........................................................................365
Low engine oil pressure......................... 362
Low fuel level ............................................... 364
LTA indicator ...............................................365
Malfunction indicator lamp................... 362
Master warning light ................................368
Parking brake indicator .......................... 367
PKSB OFF indicator ................................366
Pre-collision system ................................. 367
RCD OFF indicator .................................366
RCTA OFF indicator...............................366 Seat belt reminder light...........................364
Slip indicator ................................................. 367
SRS ....................................................................362
Tire pressure ............................................... 365
Warning messages ....................................... 371
Washer ..............................................................164 Checking .......................................................325
Preparing and checking before winter........................................................................... 251
Switch................................................................ 164
Washing and waxing.................................. 304
Weight Cargo capacity .............................................. 141
Load limits ........................................................ 141
Weight............................................................ 398
Wheel lock key............................................. 376
Wheels ............................................................. 338 Size ................................................................... 405
Window lock switch .....................................125
Windows ........................................................... 124 Power windows ............................................124
Rear window defogger........................... 264
Washer ............................................................ 164
Windshield wiper de-icer ........................ 268
Windshield wipers ........................................164 Position..............................................................167
Rain-sensing windshield wipers .......... 164
Winter driving tips.........................................251
Wireless charger ......................................... 283
Wireless remote control ............................. 93 Battery-Saving Function.......................... 107
Locking/Unlocking ..................................... 93
Replacing the battery .................................341
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MUL-
TIMEDIA SYSTEM OWNER’S
MANUAL”.