2022 LEXUS ES350 coolant temperature

3497-2. Steps to take in an emergency
7
When trouble arises
Fluid leaks under the vehicle.
(Water dripping from the air condi-
tioning after use is normal.)
 Flat-looking tires or uneven tire
wear
 Engine coolant temperature gauge
continually points higher than nor-
mal.
 Changes in exhaust sound
 Excessive tire squeal when corner-
ing
 Strange noises related to the sus-
pension system
 Pinging or other noises related to
the engine
 Engine missing, stumbling or run-
ning roughly
 Appreciable loss of power
 Vehicle pulls heavily to one side
when braking
NOTICE
■Recreational towing (behind motor
home, etc.) (AWD models)
Never dinghy tow your vehicle to pre-
vent causing serious damage to the
Dynamic Torque Control AWD system
and transmission. ( P.143)
If you think something is
wrong
If you notice any of the following
symptoms, your vehicle probably
needs adjustment or repair. Con-
tact your Lexus dealer as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

3517-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in:
The electronically controlled brake system (if equipped); or
 The parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.382)

3827-2. Steps to take in an emergency
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the engine has cooled down
sufficiently, inspect the hoses and
WARNING
●When working with the battery, always
wear safety glasses and take care not
to allow any battery fluids (acid) to
come into contact with skin, clothing
or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●Always wash your hands after han-
dling the battery support, terminals,
and other battery-related parts.
●Do not allow children near the battery.
■When replacing the battery
When the vent plug and indicator are
close to the hold down clamp, the battery
fluid (sulfuric acid) may leak.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fan or engine drive
belt.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.68, 71) is in the red
zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display.
 Steam comes out from under the
hood.
Correction procedures

3847-2. Steps to take in an emergency
6Start the engine and turn the air
conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing tem-
peratures.)
7 If the fan is not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
●Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fan and belts. Failure to do so may
cause the hands or clothing to be
caught, resulting in serious injury.
●While the engine and radiator are hot,
do not loosen or remove the coolant
inlet cap or coolant reservoir cap.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has
cooled down sufficiently. Adding cool
coolant to a hot engine too quickly can
cause damage to the engine.
■To prevent damage to the cooling
system
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.

4038-1. Specifications
8
Vehicle specifications
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, underinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for three hours or
more, or has not been driven more
than 1 mile or 1.5 km under that
condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a tire may be inflated,
shown on the sidewall of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a manufacturer
Accessory weight
The combined weight (in excess of those standard items which may
be replaced) of automatic transmission, power steering, power
brakes, power windows, power seats, radio and heater, to the extent
that these items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equipment, including the
maximum capacity of fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional engine

440Alphabetical index
Compartment ............................................... 312
Engine switch.................................................144
Fuel pump shut off system ................... 350
Hood................................................................. 310
How to start the engine............................144
Identification number ...............................389
If the engine will not start ....................... 374
If your vehicle has to be stopped in an emergency ................................................ 344
Ignition switch (engine switch) .............144
Overheating .................................................382
Tachometer .............................................. 68, 71
Engine coolant ................................................316 Capacity ......................................................... 392
Checking .........................................................316
Preparing and checking before winter...........................................................................251
Engine coolant temperature gauge .68, 71
Engine immobilizer system ........................ 59
Engine oil ..........................................................313 Capacity .........................................................390
Checking .........................................................313
Preparing and checking before winter...........................................................................251
Warning light ............................................... 352
Engine oil maintenance data ....................315
Engine switch .................................................. 144 Auto power off function ........................... 147
Changing the engine switch modes.. 147
If your vehicle has to be stopped in an emergency ................................................ 344
Starting the engine ...................................... 144
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 246
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 246
EPS (Electric Power Steering) .............. 246 Function .......................................................... 246
Warning light ...............................................353
Event data recorder (EDR) ........................... 8F
Flat tire ............................................................. 365 Tire pressure warning system ............. 322
Floor mats ...........................................................22
Fluid Automatic transmission ..........................393
Brake ................................................................394
Washer ............................................................ 319
Footwell light ................................................. 273
Front passenger occupant classification system ...............................................................37
Front seats ......................................................... 112 Adjustment ....................................................... 112
Cleaning .......................................................... 301
Correct driving posture ............................ 23
Driving position memory .......................... 113
Head restraints............................................... 116
Memory recall function.............................. 115
Power easy access system ...................... 113
Seat heaters ..................................................269
Seat position memory ................................ 113
Seat ventilators ............................................269
Front side marker light ............................... 158 Light switch .................................................... 158
Front side marker lights Replacing light bulbs................... 338, 339
Wattage ......................................................... 396
Front turn signal lights .................................153 Replacing light bulbs................... 338, 339
Turn signal lever .......................................... 153
Wattage ......................................................... 396
Fuel ......................................................................169 Capacity ........................................................ 390
Fuel gauge.................................................68, 71
Fuel pump shut off system.................... 350
Information ....................................................397
Refueling.......................................................... 169
Type ................................................................. 390
Warning light ...............................................354
Fuel consumption Average fuel economy .............................. 78

448Alphabetical index
W
Warning buzzersABS ..................................................................353
Airbags ........................................................... 352
Approach warning.................................... 204
Brake hold.................................................... 358
Brake Override System .........................353
Brake system .................................................351
Charging system ....................................... 352
Downshifting ..................................................152
Drive-Start Control ..................................353
Electric power steering ..........................353
Engine ............................................................. 352
High coolant temperature ......................351
Intuitive parking assist.................. 222, 355
Low engine oil pressure......................... 352
LTA (Lane Tracing Assist).........186, 355
Open door....................................................... 99
Open hood...................................................... 99
Open trunk ...................................................... 99
Open window ............................................... 124
PKSA (Parking Support Alert) .............215
PKSB (Parking Support Brake) .........356
Pre-collision braking.................................. 176
RCD (Rear Camera Detection) ........356
RCTA (Rear Cross Traffic Alert) ......356
Seat belt ..........................................................354
Warning lights.................................................351 ABS ..................................................................353
Brake hold operated indicator .......... 358
Brake system .................................................351
Charging system ....................................... 352
Electric power steering ..........................353
High coolant temperature ......................351
Inappropriate pedal operation ...........353
Intuitive parking assist OFF indicator.........................................................................355
Low engine oil pressure......................... 352
Low fuel level ...............................................354
LTA indicator...............................................355
Malfunction indicator lamp................... 352 Master warning light................................ 358
Parking brake indicator .......................... 357
PCS...................................................................357
PKSB OFF indicator ............................... 356
RCD OFF indicator................................. 356
RCTA OFF indicator .............................. 356
Seat belt reminder light...........................354
Slip indicator................................................. 357
SRS ....................................................................352
Tire pressure ............................................... 355
Warning messages .......................................361
Washer ..............................................................164 Checking ........................................................ 319
Preparing and checking before winter........................................................................... 251
Switch................................................................ 164
Washing and waxing.................................. 298
Weight Cargo capacity .............................................142
Load limits .......................................................142
Weight............................................................ 388
Wheel lock key............................................. 366
Wheels ............................................................. 330 Size................................................................... 395
Window lock switch .....................................124
Windows ...........................................................123 Power windows............................................123
Rear window defogger...........................263
Washer ............................................................ 164
Windshield wiper de-icer .........................267
Windshield wipers ........................................164 Position..............................................................167
Rain-sensing windshield wipers .......... 164
Winter driving tips.........................................251
Wireless charger ......................................... 282
Wireless remote control ............................. 94 Battery-Saving Function.......................... 109
Locking/Unlocking ..................................... 94
Replacing the battery...............................333