engine coolant LEXUS LX570 2014 User Guide

7544-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) Radiator and condenser
Check the radiator and condenser, and clear any foreign objects.
If any of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer. CAUTION■
When the engine is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE■
When adding engine 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 cooling. Be sure to read the antifreeze or coolant label. ■
If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.
CAUTION■
When the engine is hot
Do not touch the radiator or condenser, as they may be hot and cause serious inju-
ries, such as burns.

5
When trouble arises
8195-1. Essential information
LX570_OM_OM60L21U_(U) If you think something is wrong If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■ Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature gauge needle continually points
higher than normal
● Engine oil pressure gauge continually points lower than normal.
● Voltmeter continually points higher or lower than normal.
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine missing, stumbling or running rough
● 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, sp ongy feeling, pedal almost touches
the floor

5
When trouble arises
8735-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) If your vehicle overheats
Correction procedures
Stop the vehicle in a safe place and turn 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
sufficiently, inspect the 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. 1 9 0 )
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. STEP 1
STEP 2
STEP 3

8745-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F”
“L”
Radiator cap
Add coolant if necessary.
(  P. 74 8 ) Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans op erate and to check for coolant
leaks from the radiator or hoses. The fans operate when the air conditio ning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is diff icult to check these, turn the air con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer. STEP 4
STEP 5
STEP 6
STEP 7

5
When trouble arises
8755-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) CAUTION■
To prevent an accident or injury when in specting under the hood of your vehicle●
If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injury such as burns. ●
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 serious injury. ●
Do not loosen the radiator cap or the c oolant reservoir cap while the engine and
radiator are hot.
Serious injury, such as burns, may resu lt from hot coolant and steam released
under pressure.
NOTICE■
When adding engine coolant
Wait until the engine has cooled do wn before adding engine coolant.
When adding coolant, do so slowly. 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 additives.

8856-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L21U_(U) Cooling system
Ignition system Capacity (Reference) 17.6 qt. (16.7 L, 14.7 Imp.qt.)
Coolant type Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
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.

9006-1. Specifications
LX570_OM_OM60L21U_(U) Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excess ive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
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 not been driven more than
1 mile or 1.5 km under that condition
Maximum inflation pres-
sure The maximum cold inflated pressure 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 excess of those standard
items which may be replaced) of automatic transmis-
sion, 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 equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and addi-
tional 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 speci-
fied 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

939Alphabetical index
LX570_OM_OM60L21U_(U) If the warning light turns on ............ 821
If the warning message is
displayed ............................................ 832
If you have a flat tire ........................ 849
If you lose your keys ........................866
If you think something is
wrong.....................................................819
If your vehicle becomes
stuck ..................................................... 876
If your vehicle has to be
stopped in an emergency ......... 878
If your vehicle needs to be
towed .....................................................813
If your vehicle overheats................ 873
Engine
Compartment ...................................... 747
Engine switch ........................................ 175
Hood ....................................................... 746
How to start the
engine .................................................... 175
Identification number........................ 881
If the engine will not start ............... 863
Ignition switch........................................ 175
Overheating......................................... 873
Engine coolant
Capacity................................................ 885
Checking ............................................... 753
Preparing and checking
before winter .....................................374
Engine coolant temperature
gauge .......................................................190
Engine immobilizer system ..................117 Engine oil
Capacity ................................................ 883
Checking ............................................... 749
Preparing and checking
before winter .................................... 374
Engine switch .......................................... 175
Event data recorder ............................... 25
First-aid kit holder...................................713
Floor mats ................................................. 710
Fluid
Brake .......................................................888
Power steering ...................................888
Washer .....................................................761
Fog lights
Replacing light bulbs ....................... 806
Switch........................................................ 218
Wattage ................................................. 890
Four-wheel drive system ...................330
Front passenger occupant
classification system .......................... 138
Front passenger’s seat belt
reminder light......................................823
Front seats
Adjustment ............................................... 67
Driving position memory ..................83
Front turn signal lights
Replacing light bulbs ....................... 803
Wattage ................................................. 890F

946
LX570_OM_OM60L21U_(U) What to do if...
What to do if... A tire punctures P. 8 4 9
If you have a flat tire
The engine does not start P. 8 6 3
If the engine will not start P. 1 1 7
Engine immobilizer system P. 8 7 0
If the battery is discharged
The shift lever cannot be
moved out P. 8 6 5
If the shift lever cannot be shifted from
“P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood P. 8 7 3
If your vehicle overheats
The key is lost P. 8 6 6
If you lose your keys
The battery runs out P. 8 7 0
If the battery is discharged
The doors cannot be locked P. 5 1
Side doors P. 5 6
Back door
The horn begins to sound P. 1 1 9
Alarm
The vehicle is stuck in mud or
sand P. 8 76
If the vehicle becomes stuck