2018 LEXUS LS500H ignition

3TABLE OF CONTENTS
LS500h_OM_OM50F42U_(U) 1
2
3
4
5
6
7
8
9Dinghy towing ................................ 167
4-2. Driving procedures
Power (ignition) switch ............... 168
EV drive mode ............................... 172
Hybrid transmission ..................... 174
Turn signal lever............................. 180
Parking brake .................................. 181
Brake Hold....................................... 183
4-3. Operating the lights and wipers
Headlight switch ............................ 185
AHB (Automatic High Beam)
............................................................ 188
Windshield wipers and washer
............................................................ 190
4-4. Refueling
Opening the fuel tank cap......... 194
4-5. Using the driving support systems
Lexus Safety System+A.............. 196
Lexus Safety System+ ................ 203
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System+A)
........................................................... 209
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System+)
........................................................... 220
FCTA (Front Cross Traffic Alert)
........................................................... 227
LTA (Lane Tracing Assist)........ 230
LKA (Lane-Keeping Assist) .... 240
RSA (Road Sign Assist) ............. 247
Dynamic radar crui se control with
full-speed range......................... 250
BSM (Blind Spot Monitor) ....... 260
PKSA (Parking Support Alert)
........................................................... 265
Intuitive parking assist ................ 266 RCTA (Rear Cross Traffic Alert)
function.......................................... 273
RCD (Rear Camera Detection)
function........................................... 277
PKSB (Parking Support Brake)
.......................................................... 280
Parking Support Brake function
(static objects) ............................ 286
Parking Support Brake function
(rear-crossing vehicles) ........... 291
Parking Support Brake function
(rear pedestrians) ..................... 295
Driving mode select switch ..... 298
Electronically modulated air sus-
pension .......................................... 299
Driving assist systems ................ 302
4-6. Driving tips
Hybrid vehicle driving tips ....... 307
Winter driving tips ....................... 309
5-1. Remote Touch/Display
Remote Touch................................. 314
Center Display............................... 316
Rear Multi Operation Panel .... 318
5-2. Lexus Climate Concierge
Lexus Climate Concierge.......... 321
5-3. Using the air conditioning system
and defogger
Front automa
ti
c air conditioning
system ............................................ 323
Rear air conditioning system... 333
Heated steering wheel/seat heat-
ers/seat ventilators................... 336
5-4. Using the interior lights
Interior lights list ........................... 3405
Interior features

157
LS500h_OM_OM50F42U_(U) 4 4
Driving Driving .
4-1. Before driving
Driving the vehicle ..................... 158
Cargo and luggage ................... 164
Vehicle load limits ...................... 166
Trailer towing ............................... 166
Dinghy towing ............................. 167
4-2. Driving procedures
Power (ignition) switch ............ 168
EV drive mode ............................ 172
Hybrid transmission .................. 174
Turn signal lever.......................... 180
Parking brake ............................... 181
Brake Hold.................................... 183
4-3. Operating the lights and wipers
Headlight switch ......................... 185
AHB (Automatic High Beam)
......................................................... 188
Windshield wipers and washer
......................................................... 190
4-4. Refueling
Opening the fuel tank cap...... 194
4-5. Using the driving support sys-
tems
Lexus Safety System+A........... 196
Lexus Safety System+ ............. 203
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety Sys-
tem+A) ....................................... 209
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System+)
........................................................ 220 FCTA (Front Cross Traffic Alert)
........................................................ 227
LTA (Lane Tracing Assist) .... 230
LKA (Lane-Keeping Assist)
....................................................... 240
RSA (Road Sign Assist).......... 247
Dynamic radar cruise control with
full-speed range...................... 250
BSM (Blind Spot Monitor) .... 260
PKSA (Parking Support Alert)
....................................................... 265
Intuitive parking assist ............. 266
RCTA (Rear Cross Traffic Alert)
function....................................... 273
RCD (Rear Camera Detection)
function....................................... 277
PKSB (Parking Support Brake)
....................................................... 280
Parking Support Brake function
(static objects) ......................... 286
Parking Support Brake function
(rear-crossing vehicles) ....... 291
Parking Support Brake function
(rear pedestrians) .................. 295
Driving mode select switch .. 298
Electronically modulated air sus-
pension ....................................... 299
Driving assist systems.............. 302
4-6. Driving tips
Hybrid vehicle driving tips .... 307
Winter driving tips .................... 309

168 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4-2.Driving procedures
1 Press the parking brake switch to
check that the parking brake is set.
( → P.181)The parking brake indicator will come on.
2 Firmly depress the brake pedal. and a message will be displayed on
the multi-information display.
If it is not displayed, the hybrid system can-
not be started.
When the shift position is N, the hybrid sys-
tem cannot start. Shift the shift position to P
when starting the hybrid system. ( → P.176)
3 Press the power switch shortly and
firmly.When operating the power switch, one
short, firm press is enough. It is not neces-
sary to press and hold the switch.
If the “READY” indicator turns on, the
hybrid system will operate normally.
Continue depressing the brake pedal until
the “READY” indicator is illuminated.
The hybrid system can be started from any
power switch mode. 4 Check that the “READY” indicator
is illuminated. The vehicle cannot be driven if the
“READY” indicator is off. ■
Power switch illumination
According to the situation, the power
switch illumination operates as follows. ●
When a door is opened, or the power
switch mode is changed from ACCES-
SORY or ON mode to off, the power
switch illumination slowly blinks. ●
When depressing the brake pedal with
carrying the electronic key on your per-
son, the power switch illumination rapidly
blinks. ●
When the power switch is in ACCES-
SORY or ON mode, the power switch
illumination illuminates. ■
If the hybrid system does not start ●
The immobilizer system may not have
been deactivated. ( → P.66)
Contact your Lexus dealer. ●
If a message related to start-up is shown
on the multi-information display, read the
message and follow the instructions. ■
When the ambient temperature is low,
such as during winter driving conditions ●
When starting the hybrid system, the
flashing time of the “READY” indicator
may be long. Leave the ve hicle as it is until
the “READY” indicator is steady on, as
steady means the vehicle is able to move. ●
When the hybrid battery (traction bat-
tery) is extremely cold (below approxi-
mately -22°F [-30°C]) under the
influence of the outside temperature, it
may not be possible to start the hybrid
system. In this case, try to start the hybrid
system again after the temperature of the
hybrid battery increases due to the out-
side temperature increase etc.
■
Sounds and vibrations specific to a
hybrid vehicle
→ P.59Power (ignition) switch Performing the following opera-
tions when carryin g the electronic
key on your person starts the hybrid
system or changes power switch
modes.
Starting the hybrid system

1714-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving
1 OffThe emergency flashers can be used.
2 ACCESSORY modeSome electrical components such as the
audio system can be used.
“ACCESSORY” will be displayed on the
meter.
3 ON modeAll electrical components can be used.
“IGNITION ON” will be displayed on the
meter.
■
Auto power off function
If the vehicle is left in ACCESSORY mode
for more than 20 minutes or ON mode
(with hybrid system not operating) for more
than an hour with the shift position in P, the
power switch will automatically turn off.
However, this function cannot entirely pre-
vent the 12-volt battery discharge. Do not
leave the vehicle with the power switch in
ACCESSORY or ON mode for long peri-
ods of time when the hybrid system is not
operating. ■
When the shift control system malfunc-
tions
When attempting to turn the power switch
off while there is a ma lfunction in the shift
control system, the power switch mode may
change to ACCESSORY mode. In this
case, ACCESSORY mode may be turned
off by applying the parking brake and press-
ing the power switch again. If there is a mal-
function in the system, have the vehicle
inspected by your Lexus dealer immedi-
ately.
NOTICE■
To prevent 12-volt battery discharge ●
Do not leave the power switch in
ACCESSORY or ON mode for long
periods of time without the hybrid sys-
tem on. ●
If “ACCESSORY” or “IGNITION
ON” is displayed on the meter, the
power switch is not off. Exit the vehicle
after turning the power switch off.

194 4-4. Refueling
LS500h_OM_OM50F42U_(U) 4-4.Refueling
 Close all the doors and windows,
and turn the power switch off.
 Confirm the type of fuel. ■
Fuel types
→ P.470■
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi-
cle has a fuel tank opening that only accom-
modates the special nozzle on unleaded
fuel pumps.Opening the fuel tank cap The fuel tank of your vehicle has a
special structure, which requires a
reduction in fuel tank pressure
before refueling. After the opener
switch has been pressed, it will take
several seconds until the vehicle is
ready for refueling.
Before refueling the vehicle
WARNING■
When refueling the vehicle
Observe the following precautions while
refueling the vehicle. Failure to do so may
result in death or serious injury.
●
After exiting the ve hicle and before
opening the fuel door, touch an
unpainted metal surface to discharge
any static electricity. It is important to
discharge static electricity before refu-
eling because sparks resulting from
static electricity can cause fuel vapors
to ignite while refueling. ●
Always hold the grips on the fuel tank
cap and turn it slowly to remove it.
A whooshing sound may be heard
when the fuel tank cap is loosened.
Wait until the sound cannot be heard
before fully removing the cap. In hot
weather, pressurized fuel may spray
out the filler neck and cause injury. ●
Do not allow anyone that has not dis-
charged static electricity from their
body to come close to an open fuel
tank. ●
Do not inhale vaporized fuel.
Fuel contains substances that are
harmful if inhaled. ●
Do not smoke while refueling the vehi-
cle.
Doing so may cause the fuel to ignite
and cause a fire. ●
Do not return to the vehicle or touch
any person or object that is statically
charged.
This may cause static electricity to
build up, resulting in a possible ignition
hazard. ■
When refueling
Observe the following precautions to
prevent fuel overflowing from the fuel
tank:
●
Securely insert the fuel nozzle into the
fuel filler neck.
●
Stop filling the tank after the fuel noz-
zle automatically clicks off.
●
Do not top off the fuel tank.

384 6-3. Do-it-yourself maintenance
LS500h_OM_OM50F42U_(U) Tire inflation pres-
sure ( → P.408) • Tire pressure gauge
•Compressed air
source
Washer fluid
( → P.392) • Water or washer
fluid containing anti-
freeze (for winter
use)
• Funnel (used only for
adding water or
washer fluid)
WARNING
The engine compartment contains many
mechanisms and fluids that may move
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following
precautions. ■
When working on the engine com-
partment●
Make sure that the “ACCESSORY” or
“IGNITION ON” on the multi-infor-
mation display and the “READY” indi-
cator are both off.●
Keep hands, clothi ng and tools away
from the moving fan and engine drive
belt.
●
Be careful not to touch the engine,
power control unit, radiator, exhaust
manifold, etc. right after driving as they
may be hot. Oil and other fluids may
also be hot.
●
Do not leave anything that may burn
easily, such as paper and rags, in the
engine compartment.
●
Do not smoke, cause sparks or expose
an open flame to fuel. Fuel fumes are
flammable. Items Parts and tools ■
When working near the electric cool-
ing fan or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the
electric cooling fan may automatically
start to run if the air conditioning is on
and/or the coolant temperature is high.
( → P.391) ■
Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE■
If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine
wear due to dirt in the air.

4638-1. Specifications
LS500h_OM_OM50F42U_(U) 8
Vehicle specifications Outside temperature
Oil viscosity (0W-20 is explained here
as an example):
• The 0W in 0W-20 indicates the
characteristic 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 vis-
cosity 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 suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.
How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you
should use.A
Cooling system Capacity Gasoline
engine 11.6 qt. (11.0 L, 9.7 Imp. qt.)
Power con-
trol unit 2.6 qt. (2.5 L, 2.2 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 orga nic acid technology
Do not use plain water alone.
Ignition system (spark plug) Make DENSO FK20HBR8
Gap 0.031 in. (0.8 mm)

514 Alphabetical Index
LS500h_OM_OM50F42U_(U) emergency ................................................ 420
If your vehicle needs to be towed ..... 422
If your vehicle overheats ........................ 453
Energy monitor ....................................... 96, 97
Engine
ACCESSORY mode ...............................170
Compartment ............................................. 387
Engine compartment cover ................ 388
Engine switch................................................ 168
Hood............................................................... 385
How to start the hybrid system ........... 168
Identification number .................................461
If the hybrid system will not start ........ 443
If your vehicle has to be stopped in an
emergency ................................................ 420
Ignition switch (power switch) ............. 168
Overheating................................................. 453
Power switch ................................................ 168
Tachometer .............................................. 77, 81
Engine compartment cover ....................388
Engine coolant
Capacity ......................................................... 463
Checking .......................................................390
Preparing and checking before winter
.........................................................................309
Engine coolant temperature gauge .77, 81
Engine oil
Capacity ......................................................... 462
Checking ...................................................... 388
Preparing and checking before winter
.........................................................................309
Warning light ............................................... 428
Engine oil maintenance data .................. 390
Engine switch (power switch) ................. 168
If your vehicle has to be stopped in an
emergency ................................................ 420
EPS (Electric Power Steering) .............. 303
Warning light ...............................................430
EV drive mode................................................ 172
EV indicator ...................................................... 59
Event data recorder (EDR) ............................7 F
FCTA (Front Cross Traffic Alert) ..........227
First-aid kit storage belt ............................ 349
Flat tire
Tire pressure warning system ............. 397
Floor mats ...........................................................22
Fluid
Brake ............................................................... 465
Hybrid transmission..................................464
Washer ............................................................ 391
Footwell light ................................................. 340
Front air conditioning system ................. 323
Front Cross Traffic Alert (FCTA) ..........227
Front passenger occupant classification
system .............................................................. 40
Front seats
Adjustment ..................................................... 128
Cleaning ......................................................... 373
Correct driving posture ............................ 23
Driving position memory ........................ 139
Head restraints..............................................144
Memory recall function.............................142
Power easy access system .................... 139
Refresh system ............................................. 133
Seat heaters ..................................................336
Seat position memory .............................. 139
Seat ventilators ............................................336
Front side marker light
Light switch .................................................... 185
Replacing light bulbs ..................................417
Front turn signal lights
Replacing light bulbs ..................................417
Turn signal lever .......................................... 180
Fuel
Capacity .......................................................... 461
Fuel gauge ................................................. 77, 81
Information ....................................................470
Refueling.......................................................... 194
Type ................................................................... 461
Warning light .............................................. 430