coolant LEXUS LX570 2018 User Guide

LX570_OM_OM60Q78U_(U) 4796-3. Do-it-yourself maintenance
6
Maintenance and care Check the radiator and condenser and clear any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle checked by your Lexus dealer.
■
Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank. NOTICE ■
When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cool-
ing. Be sure to read the antifreeze or coolant label.■
If you spill coolant
Be sure to wash it off with water to pr event it from damage to parts or paint.
Radiator and condenser 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.
Brake fluid

518
LX570_OM_OM60Q78U_(U) 7-2. Steps to take in an emergency
If you think something is wrong ●
Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal)●
Flat-looking tires or uneven tire wear ●
Engine coolant temperature gauge needle continually points higher than nor-
mal ●
Engine oil pressure gauge contin ually points lower than normal●
Voltmeter continually points higher or lower than normal●
Changes in exhaust sound ●
Excessive tire squeal when cornering ●
Strange noises related to the suspension system ●
Pinging or other noises related to the engine ●
Engine missing, stumbling or running roughly ●
Appreciable loss of power ●
Vehicle pulls heavily to one side when braking ●
Vehicle pulls heavily to one side when driving on a level road ●
Loss of brake effectiveness, spongy f eeling, pedal almost touches the floorIf you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

552
LX570_OM_OM60Q78U_(U) 7-2. Steps to take in an emergency
If your vehicle overheats Stop the vehicle in a safe place and tu rn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down suff iciently, inspect th e hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans If a large amount of coolant leaks,
immediately contact your Lexus
dealer.The following may indicate that your vehicle is overheating. ●
The needle of the engine coolant temperature gauge ( → P. 88) enters the
red zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.) ●
Steam is coming from under the hood.
Correction procedures 1
2
3
1
2

5537-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises The coolant level is satisfactory if it is between the “F” and “L” lines on the res-
ervoir.
Reservoir
“F” line
“L” line
Radiator cap
Add coolant if necessary. Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the air
conditioning condenser cooling fans op erate and to check for coolant leaks
from the radiator or hoses. The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer. 4
1
2
3
4
5
6
7

554 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 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 h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot. ●
Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury. ●
Do not loosen the radiator cap or the cool ant reservoir cap while the engine and radi-
ator are hot. High temperature steam or coolant could spray out.
NOTICE ■
When adding engine coolant
Add coolant slowly after the engine has cool ed 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 foreig n matter (such as sand or dust etc.).●
Do not use any coolant additive.

562
LX570_OM_OM60Q78U_(U) 8-1. Specifications
Cooling system Capacity (Reference) 17.1 qt. (16.2 L, 14.3 Imp.qt.)
Coolant type Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Ignition system Spark plug
Make
Gap DENSO SK20HR11
0.043 in. (1.1 mm)
NOTICE ■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.
Electrical system Battery
Open voltage at 68 ° F
(20 ° C): 12.6 ⎯ 12.8 V Fully charged
12.2 ⎯ 12.4 V Half charged
11.8 ⎯ 12.0 V Discharged
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates 5 A max.

LX570_OM_OM60Q78U_(U) 5758-1. Specifications
8
Vehicle specifications Glossary of tire terminology Tire related term Meaning
Cold tire inflation pressure Tire pressure when the vehicle has been parked for
three hours or more, or has no t been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sure The maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressure Cold tire inflation pressure recommended by a manu-
facturer
Accessory weight The combined weight (in exce ss 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 co nditioning 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 numb er of occupants specified
in the second column of Table 1
* that follows
Occupant distribution Distribution of occupants in a vehicle as specified in the
third column of Table 1
* below
Production options weight The combined weight of in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they re place, not previously con-
sidered in curb weight or accessory weight, including
heavy duty brakes, ride leve lers, roof rack, heavy duty
battery, and special trim
Rim A metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

615Alphabetical index
LX570_OM_OM60Q78U_(U) Coolant..................................................... 562
Capacity .................................................562
Checking................................................478
Preparing and checking
before winter ................................... 382
Cooling system
Engine overheating.......................... 552
Crawl Control ....................................... 307
Cruise control
Cruise control....................................... 281
Dynamic radar cruise control
with full-speed range ....................269
Cup holders ............................................ 423
Curtain shield airbags ........................... 38
Customizable features .......................580
Daytime running light system .......... 222
Defogger
Outside rear view mirrors ............ 405
Rear window ....................................... 405
Windshield ........................................... 405
Differential ............................................... 563
Dimension ...............................................558
Dinghy towing........................................ 204 Display
Crawl Control..................................... 307
Drive information.................................. 94
Dynamic radar cruise control
with full-speed range ................... 269
Fuel consumption information ..... 106
Head-up display ................................. 100
Intuitive parking assist......................288
LDA (Lane Departure Alert)....... 264
Multi-information display.................... 91
Multi-terrain Monitor .........................316
Multi-terrain Select ............................. 312
Warning messages ..........................528
Do-it-yourself maintenance..............470
Door courtesy lights
Location ................................................... 417
Doors
Automatic door locking and
unlocking system............................... 119
Back door................................................ 122
Door glasses ..........................................165
Door lock.................................................. 115
Open door warning buzzer ........ 522
Open door warning light .............. 522
Outside rear view mirrors .............. 162
Rear door child-protectors ............. 118
Side doors ................................................ 115D
* : Refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.

617Alphabetical index
LX570_OM_OM60Q78U_(U) Engine
Accessory mode............................... 206
Air cleaner ...............................................471
Compartment...................................... 473
Engine switch ...................................... 205
Exhaust gas precautions ................... 74
Hood ........................................................ 472
How to start the engine ................. 205
Identification number ...................... 559
If the engine will not start................544
If your vehicle has to be
stopped in an emergency ............. 511
Ignition switch (engine
switch) ................................................. 205
Overheating ........................................ 552
Engine compartment cover ............. 474
Engine coolant....................................... 478
Capacity .................................................562
Checking................................................478
Preparing and checking
before winter ................................... 382
Engine coolant temperature
gauge ........................................................ 88
Engine immobilizer system ................. 75
Engine oil ................................................. 475
Capacity ................................................ 560
Checking................................................475
Preparing and checking
before winter ................................... 382 Engine switch (ignition switch) ....... 205
Engine switch light
(ignition switch light)......................... 417
Event data recorder (EDR)................... 10
Exhaust gas precautions ....................... 74
First-aid kit holder ................................ 428
Flat tire ...................................................... 532
Floor mats....................................................26
Fluid
Automatic transmission ..................563
Brake........................................................ 564
Steering .................................................. 564
Washer ...................................................485
Fog lights...................................................229
Replacing light bulbs ...................... 508
Switch ...................................................... 229
Footwell lights .......................................... 417
Four-wheel AHC (Active Height
Control Suspension) ....................... 295
Easy access mode ............................ 297
Disabling the height control ......... 298
Selecting vehicle height.................. 295
Four-wheel drive system
Center differential
lock/unlock .......................................304
Four-wheel drive control
switch ...................................................303
Warning light ....................................... 522
Front automatic air conditioning
system .................................................... 399
Front doors ................................................ 115 F
* : Refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.