2017 LEXUS LS600H check engine

5006-3. Do-it-yourself maintenance
LS600h/LS600hL_EE(OM50G20E)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle inspec ted by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
CAUTION
■When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps. ( P. 615)
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.
Radiator and condenser
CAUTION
■When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause serious inju-
ries, such as burns.

5356-3. Do-it-yourself maintenance
6
Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
Turn the power switch off.
Open the fuse box cover.
Engine compartment (type A fuse box)
Remove the engine compart-
ment cover ( P. 493) and push
the tab in and lift the lid off.
Engine compartment: type B fuse box (left-hand drive vehicles)
Remove the engine compart-
ment cover ( P. 493) and push
the tab in and lift the lid off.
Engine compartment: type B fuse box (right-hand drive vehicles)
Remove the engine compart-
ment cover ( P. 493) and push
the tab in and lift the lid off.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
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2

6157-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
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.
●After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically
start, or the cooling fan may suddenly operate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught, resulting in
serious injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too quickly can cause damage to the hybrid
system.
■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 caps
while the hybrid system and radiator are
hot.
High temperature steam or coolant could
spray out.

6248-1. Specifications
LS600h/LS600hL_EE(OM50G20E)
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more than 5
minutes, and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Lexus rec-
ommends the use of approved “Toyota Genuine Motor Oil”. Another
motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Lubrication system
Oil capacity
(Drain and refill—reference*)
With filter
Without filter
9.0 L (9.5 qt., 7.9 Imp. qt.)
8.4 L (8.9 qt., 7.4 Imp. qt.)

657Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Climate control seat ............................456
Climate control seat filter..................459
Clock ......................................................... 447
Clock light ............................................... 427
Coat hooks .............................................. 472
Coin holder ............................................. 434
Condenser ............................................ 500
Console box ........................................... 437
Coolant .....................................................498
Capacity ................................................. 627
Checking .............................................. 498
Preparing and checking
before winter ....................................384
Cooling system ......................................498
Engine overheating ............................. 611
Hybrid system overheating ............. 611
Cruise control
Cruise control .....................................289
Dynamic radar cruise control ..... 293
Dynamic radar cruise control
with full-speed range.................... 307
Cup holders ............................................435
Curtain shield airbags ...........................50
Customizable features ....................... 634
Daytime running light system ........... 271
Defogger
Outside rear view mirrors ............ 425
Rear window........................................ 425
Windshield ........................................... 407
Differential
Front differential ................................. 629
Rear differential .................................. 629
Dimensions ............................................. 620
Display
Dynamic radar cruise control ..... 293
Dynamic radar cruise control
with full-speed range ................... 307
LKA (Lane-Keeping Assist) ........ 328
Multi-information display................... 121
Remote Touch screen .................... 390
Trip information.................................... 123
Warning message ............................ 563
Do-it-yourself maintenance ............. 486
D

660Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Engine compartment cover .............493
Engine coolant .......................................498
Capacity ................................................. 627
Checking .............................................. 498
Preparing and checking
before winter ....................................384
Engine coolant temperature
gauge.........................................................115
Engine oil.................................................. 495
Capacity ................................................. 624
Checking ...............................................495
Preparing and checking
before winter ....................................384
Engine switch ......................................... 247
EPS (Electric Power Steering)........339
Function ..................................................339
Warning light ....................................... 557
EV drive mode ....................................... 252
First-aid kit storage belt ..................... 444
Flat tire
Vehicles with a spare tire .............. 567
Vehicles without a spare tire ....... 578
Floor mats ................................................... 40
Fluid
Brake ....................................................... 630
Hybrid transmission ......................... 628
Washer.....................................................501
Fog lights .................................................. 280
Replacing light bulbs ........... 542, 543
Switch ...................................................... 280
Wattage ................................................... 631
Follow me home system .................... 270
Footwell light ...........................................427
Front automatic air
conditioning system ......................... 399
Front fog lights ....................................... 280
Replacing light bulbs ....................... 543
Switch ...................................................... 280
Front position lights ............................. 269
Light switch........................................... 269
Replacing light bulbs ....................... 543
Welcome light illumination
control ...................................................150
F