brake fluid LEXUS LS500H 2018 User Guide

426 7-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U)  Fluid leaks under the vehicle.
(Water dripping from the air condi-
tioning 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 corner-
ing
 Strange noises related to the sus-
pension system
 Pinging or other noises related to
the hybrid system
 Engine missing, stumbling or run-
ning 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 following
symptoms, your vehicle probably
needs adjustment or repair. Con-
tact your Lexus dealer as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

4277-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U) 7
When trouble arises ■
Brake system warning light (warning buzzer)
■
Brake system warning light (warning buzzer)
■
High coolant temperature warning light *
(warning buzzer)
*
: This light illuminates on the multi-information display.If a warning light turns on or a warning buzzer soundsCalmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, bu t then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers Warning light Details/Actions(U.S.A.)
or (red)
(Canada) Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
→ Immediately stop the vehicle in a safe place and contact your Lexus
dealer. Continuing to drive the vehicle may be dangerous.
Indicates that the brake pads are worn out (only the right-side pads can
be detected)
→ Have the vehicle inspected by your Lexus dealer.
Warning light Details/Actions
(yellow) Indicates a malfunction in:
 The regenerative braking system;
 The electronically controlled brake system; or
 The parking brake system
→ Have the vehicle inspected by your Lexus dealer immediately.
Warning light Details/Actions
Indicates that the engine coolant temperature is too high
→ Immediately stop the vehicle in a safe place.
Handling method ( → P.453)

466 8-1. Specifications
LS500h_OM_OM50F42U_(U) *1
: Minimum pedal clearance when depressed with a force of 11 2 lbf (500 N, 51 kgf) while
the hybrid system is operating.
When performing the brake pedal inspection, also be sure to check that the brake sys-
tem warning light is not illuminated when the hybrid system is operating. (If the brake
system warning light is illuminated, refer to P.427.) *2
: Make sure to confirm that the brake warning light (yellow) does not illuminate. (If the
brake warning light illuminates, refer to P.427.)

19-inch tires (type A) Parking brake indicator *2
When pushing the parking brake switch for 1 to 2
seconds: comes on
When pulling the parking brake switch for 1 to 2
seconds: turns off
Fluid type FMVSS No.116 DOT 3 or SAE J1703
FMVSS No.116 DOT 4 or SAE J1704
Steering Free play Less than 1.2 in. (30 mm)
Tires and wheels Tire size 245/50RF19 101W
Tire inflation pressure
(Recommended cold tire
inflation pressure) Driving under normal conditions
Front: 36 psi (250 kPa, 2.5 kgf/cm 2
or bar)
Rear: 36 psi (250 kPa, 2.5 kgf/cm 2
or bar)
Driving at high speeds above 118 mph (190 km/h) (in coun-
tries where such speeds are permitted by law)
Add 9 psi (60 kPa, 0.6 kgf/cm 2
or bar) to the front tires and
rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size 19 × 8J
Wheel nut torque 103 ft•lbf (140 N•m, 14.3 kgf•m)

5111-1. What to do if... (Troubleshooting)
LS500h_OM_OM50F42U_(U) 511Alphabetical Index
Alphabetical Index A
A/C
Air conditioning filter ...................................411
Front automatic air conditioning system
......................................................................... 323
Micro dust and pollen filter................... 329
Rear air conditioning system ............... 333
ABS (Anti-lock Brake System).............. 302
Warning light ............................................... 429
Adaptive Front-lighting System (AFS) .187
Adaptive Variable Suspension System303
AFS (Adaptive Front-lighting System) .187
Air conditioning filter .................................... 411
Air conditioning system
Air conditioning filter ...................................411
Front automatic air conditioning system
......................................................................... 323
Micro dust and pollen filter................... 329
Rear air conditioning system ............... 333
Airbags
Airbag operating conditions..................... 31
Airbag precautions for your child ........ 34
Correct driving posture .............................23
Curtain shield airbag operating condi-
tions .................................................................... 31
Curtain shield airbag precautions ....... 34
Front passenger occupa nt classification
system ............................................................. 40
General airbag precautions ................... 34
Locations of airbags.................................... 29
Modification and disposal of airbags ..37
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 34
Side and curtain shield airbags operating
conditions........................................................ 31
Side and curtain shield airbags precau-
tions .................................................................. 34
SRS airbags ..................................................... 29
SRS warning light ...................................... 428
Alarm
Alarm .................................................................. 68 Warning buzzer ......................................... 427
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start)........................................ 119
Anti-lock Brake System (ABS).............. 302
Warning light ............................................... 429
Approach warning...................................... 256
Armrest............................................................ 352
Assist grips ..................................................... 352
Audio system-linked display ...................... 90
Automatic headlight leveling system ... 186
Automatic High Beam ............................... 188
Automatic light control system............... 185
Auxiliary boxes .................................. 347, 349
Average fuel economy................................. 88
Average vehicle speed ................................ 88
B
Back-up lights
Replacing light bulbs ..................................417
Battery (12-volt battery)
Battery checking ........................................393
If the 12-volt battery is discharged .... 447
Preparing and checking before winter
......................................................................... 309
Warning light ...............................................428
Battery (traction battery) .............................. 61
Blind Spot Monitor (BSM)....................... 260
Brake
Brake hold ...................................................... 183
Fluid.................................................................. 465
Parking brake ................................................. 181
Regenerative braking .................................59
Warning light ............................................... 427
Brake assist .................................................... 302
Break-in tips.....................................................159
Brightness control
Instrument panel light control........ 79, 85
BSM (Blind Spot Monitor)....................... 260

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