2020 Lexus ES350 coolant level

3847-2. Steps to take in an emergency
radiator core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F” line
“L” line
Coolant inlet cap
5
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
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 oper ate in freezing tem-
peratures.)
7If 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.
A
B
A
B
C
D
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.

4018-1. 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 sudd
en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral 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, unde rinflation, 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 tran smission, 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

446Alphabetical index
Airbags ...........................................................355
Approach warning......................................199
Brake hold.......................................................361
Brake Override System .........................356
Brake system ............................................... 354
Charging system .......................................355
Downshifting ........................................ 150, 151
Drive-Start Control ..................................356
Electric power steering ..........................356
Engine .............................................................355
High coolant temperature .................... 354
Intuitive parking assist................... 218, 358
Low engine oil pressure.........................355
LTA (Lane Tracing Assist)......... 182, 358
Open door.............................................. 96, 98
Open hood...................................................... 98
Open trunk ...................................................... 98
Open window ...............................................125
PKSA (Parking Support Alert) ............. 212
PKSB (Parking Support Brake) .........359
Pre-collision braking.................................. 175
RCD (Rear Camera Detection) ........359
RCTA (Rear Cross Traffic Alert) ......359
Seat belt .......................................................... 357
Warning lights............................................... 354 ABS ..................................................................356
Brake hold operated indicator .............361
Brake Override System .........................356
Brake system ............................................... 354
Charging system .......................................355
Drive-Start Control ..................................356
Electric power steering ..........................356
High coolant temperature .................... 354
Intuitive parking assist OFF indicator........................................................................ 358
Low engine oil pressure.........................355
Low fuel level ............................................... 357
LTA indicator .............................................. 358
Malfunction indicator lamp...................355
Master warning light ..................................361
Parking brake indicator ..........................360
PKSB OFF indicator ................................359 Pre-collision system................................. 360
RCD OFF indicator................................. 359
RCTA OFF indicator .............................. 359
Seat belt reminder light...........................357
Slip indicator ................................................ 360
SRS ................................................................... 355
Tire pressure ............................................... 358
Warning messages ..................................... 364
Washer ............................................................... 161 Checking .........................................................321
Preparing and checking before winter.......................................................................... 249
Switch.................................................................. 161
Washing and waxing.................................. 302
Weight Cargo capacity .............................................. 141
Load limits ........................................................ 141
Weight............................................................ 388
Wheel lock key............................................. 369
Wheels ............................................................. 333 Size ....................................................................393
Window lock switch .....................................125
Windows ........................................................... 124
Power windows ............................................124
Rear window defogger........................... 262
Washer .............................................................. 161
Windshield wiper de-icer ........................ 265
Windshield wipers ......................................... 161 Position............................................................. 165
Rain-sensing windshield wipers ............ 161
Winter driving tips....................................... 249
Wireless charger ...........................................281
Wireless remote control ............................. 93 Battery-Saving Function.......................... 107
Locking/Unlocking ..................................... 93
Replacing the battery ...............................336
For information regarding the equipment listed below, refer to