engine LEXUS LS600H 2015 Repair Manual

5418-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
*: 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. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the fol-
lowing grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Lubrication system
Oil capacity
Drain and refill (Reference
*)
With filter
Without filter
9.5 qt. (9.0 L, 7.9 Imp. qt.)
8.9 qt. (8.4 L, 7.4 Imp. qt.)

5428-1. Specifications
LS600hL_U(OM50E41U)
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the ch aracteristic of the oil which allows
cold startability. Oils with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the visc osity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity (one
with a higher value) may be better su ited if the vehicle is operated at
high speeds, or under extreme load conditions.
How to read oil container label:
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark is
added to some oil containers to
help you select the oil you should
use.
Outside temperature

5438-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
Cooling system
Capacity
Gasoline
engine11.7 qt. (11.1 L, 9.8 Imp. qt.)
Pow e r
control unit2.7 qt. (2.6 L, 2.3 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 tech-
nology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK20HBR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68 F
(20 C): 12.5 V or higher Fully charged
11.0 
12.4 V Half charged
10.9 V or lower Discharged
(Voltage is checked 20 minutes after the hybrid sys-
tem and all lights are turned off.)
Charging rates5 A max.

5508-1. Specifications
LS600hL_U(OM50E41U)
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
■Gasoline quality
In very few cases, driveability problems ma y be caused by the brand of gasoline you
are using. If driveability problems persist, try changing the brand of gasoline. If this
does not correct the problem, consult your Lexus dealer.
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have developed a
specification for fuel quality called the World-Wide Fuel Charter (WWFC), which
is expected to be applied worldwide.
●The WWFC consists of four categories that are based on required emission levels.
In the U.S., category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and
improves customer satisfaction through better performance.
Fuel information
You must only use unleaded gasoline in your vehicle.
Select premium unleaded gasoline with an octane rating of 91
(Research Octane Number 96) or higher required for optimum engine
performance. If 91 octane cannot be obtained, you may use unleaded
gasoline with an octane rating as low as 87 (Research Octane Number
91). Use of unleaded gasoline with an octane rating lower than 91 may
result in engine knocking and signif icantly reduced performance. Per-
sistent knocking can lead to engine damage and should be corrected
by refueling with higher octane unleaded gasoline.
At minimum, the gasoline you us e should meet the specifications of
ASTM D4814 in the U.S.A.

5518-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
■Recommendation of the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/
or keep clean intake systems, per EPA’ s lowest additives concentration program.
●Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gasoline and a list of marketers, please go to the
official website www.toptiergas.com.
■Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformul ated gasoline that contains oxygenates
such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many areas.
Lexus recommends the use of cleaner burn ing gasoline and appropriately blended
reformulated gasoline. These types of ga soline provide excellent vehicle perfor-
mance, reduce vehicle emissions and improve air quality.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no lower than
87.
●Lexus does not recommend the use of gasoline containing methanol.
●Use only gasoline containing up to 15% eth-
anol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol,
including from any pump labeled E30, E50,
E85 (which are only some examples of fuel
containing more than 15% ethanol).DO NOT use gasoline con-
taining more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

5528-1. Specifications
LS600hL_U(OM50E41U)
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhanc ing additive called MMT (Methylcyclo-
pentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoli ne that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating or
driving uphill. This is normal and there is no need for concern.
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be dam-
aged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic convert-
ers causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than the level
previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability is encountered after us ing a different type of fuel (poor hot start-
ing, vaporization, engine knocking, etc.), discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5598-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire 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-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid 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 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 weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
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 production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

601Alphabetical index
LS600hL_U(OM50E41U)
Console box ........................................... 369
Consumption screen ............................. 115
Coolant..................................................... 445Capacity .................................................543
Checking................................................445
Preparing and checking before winter ....................................................325
Cooling system ..................................... 445 Engine overheating.......................... 530
Hybrid system overheating ......... 530
Cruise control Cruise control......................................253
Dynamic radar cruise control with full-speed range .................... 257
Cup holders ............................................ 368
Curtain shield airbags ........................... 43
Customizable features ....................... 564
Daytime running light system .......... 236
Defogger Front windshield .................................. 341
Outside rear view mirrors ............ 358
Rear window ....................................... 358
Differential Front differential ..................................544
Rear differential .................................. 545
Dimensions .............................................538
Dinghy towing..........................................215 Display
Dynamic radar cruise control with full-speed range ................... 257
LKA (Lane-Keeping Assist)..........277
Multi-information display................ 105
Remote Touch screen ....................330
Trip information ................................... 106
Warning message.............................503
Do-it-yourself maintenance............. 433
Door courtesy lights ........................... 360
Door lock Doors.........................................................145
Smart access system with push-button start .............................. 125
Wireless remote control....................141
Door pockets ..........................................367
Doors .......................................................... 145 Automatic door locking and unlocking system .................... 147
Door glasses ......................................... 189
Door lock.................................................145
Open door warning buzzer ......... 130
Open door warning light .............. 496
Outside rear view mirrors ............. 185
Rear door child-protector ..............146
D

603Alphabetical index
LS600hL_U(OM50E41U)
Energy monitor ........................................ 113
EngineACCESSORY mode........................ 217
Compartment......................................439
Engine switch ........................................ 216
Hood ........................................................436
How to start the hy brid system .... 216
Identification number ...................... 539
If the hybrid system will not start......................................... 517
Ignition switch (power switch).................................. 216
Overheating ........................................ 530
Power switch......................................... 216
Engine compartment cover ............. 440
Engine coolant....................................... 445 Capacity .................................................543
Checking................................................445
Preparing and checking before winter ....................................325
Engine coolant temperature gauge ........................................................ 99
Engine oil ................................................. 442 Capacity .................................................. 541
Checking................................................ 442
Preparing and checking before winter ....................................325
Engine switch ...........................................216
EPS (Electric Power Steering) .............. 290 Function ................................................. 290
Warning light .......................................494
EV drive mode......................................... 221
Event data recorder (EDR) .................... 11 First-aid kit storage belt......................375
Flat tire
Vehicles with a spare tire ............. 506
Vehicles with run-flat tires.............. 515
Floor mats....................................................32
Fluid Brake........................................................545
Hybrid transmission ......................... 544
Washer ................................................... 449
Fog lights...................................................243 Replacing light bulbs .........................481
Switch ...................................................... 243
Footwell light .......................................... 360
Front automatic air conditioning system .................................................... 336
Front fog lights........................................243 Replacing light bulbs .........................481
Switch ...................................................... 243
Front passenger occupant classification system ........................... 55
Front seats ................................................. 156 Adjustment..............................................156
Cleaning................................................. 422
Climate control seats ...................... 387
Correct driving posture .................... 34
Driving position memory................. 172
Head restraints ..................................... 179
Power easy access system .............159
Seat position memory ....................... 172
Front side marker lights......................234 Light switch........................................... 234
Replacing light bulbs .........................481
Welcome light illumination control.................................................... 126F

605Alphabetical index
LS600hL_U(OM50E41U)
HooksCargo hooks ........................................ 373
Coat hooks ............................................ 401
Retaining hooks (floor mat) ............. 32
Shopping bag hooks........................ 373
Horn ........................................................... 233
Hybrid battery (traction battery) ........81
Hybrid battery (traction battery) air vents .................................................... 82
Hybrid system ............................................76 Emergency shut off system.............. 82
Energy monitor/consumption screen ........................ 112
EV drive mode...................................... 221
High voltage components ................ 81
Hybrid System Indicator ................. 103
Hybrid system precautions............... 81
Hybrid vehicle driving tips............. 323
If the hybrid system will not start......................................... 517
Overheating ........................................ 530
Power (ignition) switch .................... 216
Starting the hybrid system .............. 216
Vehicle proximity notification system ..................................................... 77
Hybrid System Indicator..................... 103
Hybrid transmission ............................ 223 If the shift lever cannot be shifted from P ............. 519
S mode .................................................... 224 I/M test ......................................................432
Identification........................................... 539
Engine .....................................................539
Vehicle ....................................................539
Ignition switch (power switch) .......... 216
Illuminated entry system ................... 363
Immobilizer system ................................ 88
Indicators ..................................................... 97
Initialization Maintenance ........................................ 426
Moon roof ...............................................194
Power windows................................... 190
Tire pressure warning system ...............................455
Initiators (tire pressure warning system) .................................462
Inside door handle lights ................... 360
Inside rear view mirror.........................183
Instrument panel light control ............ 101
Instrument panel ornament lights ....................................................... 360
Interior lights ............................................ 361 Front interior light ................................361
Rear interior light .................................361
Interior lights list.................................... 360
Intuitive parking assist
*
I
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.