2020 LEXUS LS500H coolant level

4197-2. 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, bu t 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.
Indicates that the brake pads are worn out (only the right-side pads can
be detected)
 Have the vehicle inspected by your Lexus dealer.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in:
The electronically controlled brake sy stem (vehicles with Lexus Safety
System + A); 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.444)

4447-2. 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 radiator core (radiator) for any
leaks.
Radiators
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4
The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Engine
Reservoir
“F” line
“L” line
Coolant inlet cap
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.73, 76) 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
A
B
A
B
C
D

4658-1. Specifications
8
Vehicle specifications
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil
and coolant, and if so equipped, air conditioning
and additional weight optional engine
Maximum loaded vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight
150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that fol-
lows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular produc-
tion options weighing over 5 lb. (2.3 kg) in excess of
the standard items which they replace, not previ-
ously considered in curb weight or accessory
weight, including heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assem-
bly upon which the tire beads are seated
Rim diameter (Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a rim
by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight (Total load
capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle’s designated seating capacity
Vehicle maximum load on the tire
The load on an individual ti re that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Tire related termMeaning

511Alphabetical Index
Hands off steering wheel warning (LTA)......................................................................... 237
High coolant temperature ......................419
Intuitive parking assist.................. 265, 423
Low engine oil pressure......................... 420
LTA (Lane Tracing Assist)226, 229, 423
Open door............................................ 101, 103
Open window ............................................... 144
PKSA (Parking Support Alert) ...........258
PKSB (Parking Support Brake) ......... 424
Pop Up Hood ............................................... 421
Pre-collision braking......................205, 217
RCD (Rear Camera Detection) ........ 424
RCTA (Rear Cross Traffic Alert) ...... 424
Seat belt .......................................................... 422
Warning lights.................................................419 ABS .................................................................... 421
Brake hold operated indicator ........... 426
Brake Override System ........................... 421
Brake system .................................................419
Charging system ....................................... 420
Drive-Start Control .................................... 421
Electric power steering .......................... 422
High coolant temperature ......................419
Intuitive parking assist OFF indicator423
Low engine oil pressure......................... 420
Low fuel level ............................................... 422
LTA indicator ............................................... 423
Malfunction indicator lamp................... 420
Master warning light ................................ 426
Parking brake indicator .......................... 425
PKSB OFF indicator ................................ 424
Pop Up Hood ............................................... 421
Pre-collision system ................................. 425
RCD OFF indicator ................................. 424
RCTA OFF indicator............................... 424
Seat belt reminder light .......................... 422
Slip indicator ................................................ 425
SRS.................................................................... 420
Tire pressure ................................................ 423
Warning messages ..................................... 429
Warning reflector storag e belt.............. 344Washer
Adding............................................................ 384
Preparing and checking before winter......................................................................... 303
Switch................................................................ 185
Washing and waxing.................................. 362
Weight Cargo capacity ............................................ 163
Load limits ...................................................... 163
Weight............................................................ 450
Wheels Replacing wheels ...................................... 395
Size ................................................................... 456
Window lock switch .....................................145
Windows Power windows ............................................143
Rear window defogger............................ 318
Washer ............................................................ 185
Windshield wiper de-icer ........................ 323
Windshield wipers Position............................................................. 188
Rain-sensing windshield wipers .......... 185
Winter driving tips....................................... 303
Wireless remote control Battery-Saving Function............................ 112
Locking/Unlocking .....................................98
Replacing the battery .............................. 403
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
· Navigation system
· Audio/visual system
· Rear seat entertainment system
· Lexus parking assist monitor