engine coolant LEXUS LS460L 2016 User Guide

5406-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
AWD models
Battery (P. 549)
Engine oil level dipstick
( P. 544)
Air cleaners ( P. 554)
Engine oil filler cap ( P. 545)
Washer fluid tank ( P. 553)
Electric cooling fans
Condenser ( P. 549)
Radiator ( P. 549)
Engine coolant reservoir
( P. 547)
Fuse boxes ( P. 579)
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5476-3. Do-it-yourself maintenance
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Maintenance and care
LS460/LS460L_GE (OM50G06E)
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW”
line, add coolant up to the “FULL” line.
( P. 641)
Engine coolant
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5486-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life
hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized
water. (Minimum temperature: -35 C [-31F])
For more details about engine coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and
water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in
the cooling system.
CAUTION
■When the engine is hot
Do not remove the engine coolant reservoir cap. ( P. 644)
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 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 it from damaging parts or paint.

6037-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher
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 feeling, pedal almost touches the
floor
If you think something is wrong
If you notice any of the followin g symptoms, your vehicle probably
needs adjustment or repair. Contact your Lexus dealer as soon as pos-
sible.
Visible symptoms
Audible symptoms
Operational symptoms

6167-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LKA (Lane-Keeping Assist) lane de parture warning function (if equipped)
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a
separate system warning light will come on or flash along with the message shown
on the multi-information display.
●Malfunction of the brake system
The brake system warning light (red indicator) comes on. ( P. 605)
●Malfunction of the electronically controlled brake system or electric parking brake
The brake system warning light (yellow indicator) comes on. ( P. 607)
●Malfunction of the ABS
The ABS warning light comes on. ( P. 606)
●Malfunction of the charging system
The charging system warning light comes on. ( P. 606)
●Indicates that a door or the trunk is not fully closed
The open door warning light comes on. ( P. 608)
●High engine coolant temperature
The needle of the engine coolant temperature gauge enters the red zone.
( P. 641)

6417-2. Steps to take in an emergency
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When trouble arises
LS460/LS460L_GE (OM50G06E)
●The needle of the engine coolant temperature gauge ( P. 125) enters
the red zone or a loss of engine po wer is experienced. (For example,
the vehicle speed does not increase.)
●Steam comes out from under the hood.
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 (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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6437-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
Start the engine and turn the air conditioning system on to check that
the radiator cooling fan operates 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 conditioning system on and off
repeatedly.
(The fan may not operate in freezing temperatures.)
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.
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6447-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
CAUTION
■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 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 serious injury.
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.
●Do not loosen the coolant reservoir cap
while the engine and radiator are hot.
High temperature steam or coolant could
spray out.

691Alphabetical index
LS460/LS460L_GE (OM50G06E)
Climate control seat ............................ 478
Climate control seat filter................... 481
Clock ......................................................... 469
Clock light ............................................... 447
Coat hooks .............................................. 496
Coin holder ............................................. 454
Condenser .............................................. 549
Console box ........................................... 457
Cool box................................................... 459
Coolant ..................................................... 547
Capacity ................................................ 656
Checking ............................................... 547
Preparing and checking
before winter ....................................399
Cooling system ...................................... 547
Engine overheating ............................641
Cruise control
Cruise control .................................... 309
Dynamic radar cruise control .......313
Dynamic radar cruise control
with full-speed range.................... 328
Cup holders ............................................455
Curtain shield airbags............................ 52
Customizable features ....................... 667
Daytime running light system .......... 288
Defogger
Front windshield.................................. 427
Outside rear view mirrors ............ 445
Rear window........................................ 445
Differential
Front differential .................................658
Rear differential ..................................658
Dimensions ............................................. 648
Display
Dynamic radar cruise control ....... 313
Dynamic radar cruise control
with full-speed range ................... 328
LKA (Lane-Keeping Assist) ........ 348
Multi-information display................. 129
Remote Touch screen .................... 406
Trip information...................................... 131
Warning message ............................. 614
Do-it-yourself maintenance ............. 533
Door courtesy lights.............................447
Door lock
Doors.........................................................186
Smart entry & start system ............. 153
Wireless remote control ..................177
Door pockets ......................................... 454
D

693Alphabetical index
LS460/LS460L_GE (OM50G06E)
Emergency, in case of
If the electronic key does not
operate properly ..............................631
If the engine will not start ............... 627
If the parking brake cannot be
released............................................... 629
If the vehicle battery is
discharged.........................................636
If the warning buzzer sounds ..... 605
If the warning light turns on ......... 605
If the warning message is
displayed ..............................................614
If you have a flat tire ........................... 618
If you think something is
wrong .................................................. 603
If your vehicle becomes stuck.....645
If your vehicle has to be stopped
in an emergency ............................ 595
If your vehicle needs to be
towed .................................................. 596
If your vehicle overheats ..................641
Engine
ACCESSORY mode ..................... 260
Air cleaner ............................................ 554
Compartment ..................................... 539
Engine switch ...................................... 259
Hood ....................................................... 536
How to start the engine ................. 259
Identification number.........................651
If the engine will not start ................627
Ignition switch (engine switch) ... 259
Overheating .......................................... 641
Engine compartment cover ...............541
Engine coolant....................................... 547
Capacity................................................. 656
Checking ............................................... 547
Preparing and checking before
winter ................................................... 399
Engine coolant temperature
gauge .......................................................125
Engine immobilizer system ............... 104
Engine oil ................................................. 544
Capacity................................................. 653
Checking ............................................... 544
Preparing and checking before
winter ................................................... 399
Engine switch ......................................... 259
EPS (Electric Power Steering) .........361
Function.................................................... 361
Warning light.......................................606