
5007-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
vehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
Vehicles with a spare tire
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
Vehicles with run-flat tires
●Decelerate to the lowest appropriate speed as soon as possible. Do not drive
over 50 mph (80 km/h).
●Check and adjust the tire inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Have the tire replaced by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

5057-2. Steps to take in an emergency
7
When trouble arises
LS600hL_U(OM50E41U)
■The LKA (Lane-Keeping Assist) lane departure 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. 4 9 3 )
●Malfunction of the regenerative brake syst em, electronically controlled brake sys-
tem or electric parking brake
The brake system warning light (yellow indicator) comes on. ( P. 495)
●Malfunction of the ABS
The ABS warning light comes on. ( P. 4 9 4 )
●Malfunction of the charging system
The charging system warning light comes on. ( P. 4 9 4 )
●Indicates that a door or the trunk is not fully closed
The open door warnin g light comes on. (P. 4 9 6 )
●High engine coolant temperature
The needle of the engine coolant temperature gauge enters the red zone.
( P. 5 3 0 )
■If “Maintenance required ” is shown (U.S.A. only)
Perform the necessary maintenance.
Please reset the message after the maintenance is performed. ( P. 4 2 6 )
■If “Hybrid System Overheat” is shown
Coping method: P. 5 3 0
This message may be displayed when driv ing under severe operating conditions.
(For example, when driving up a long steep hill.)
■Warning buzzer
In some cases, the buzzer may not be hear d due to ambient noise or sounds from the
audio system.

5187-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. ( P. 5 2 7 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to star t the hybrid system if the power switch is func-
tioning normally:
Turn the power switch to ON mode ( P. 217) and check that the park-
ing brake is set.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch fo r about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4

5458-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equiva-
lent of matching quality to satisfy th e above specification. Please contact your
Lexus dealer for further details.
*: Minimum pedal clearance when depressed with a force of 112 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 system warning light is not illumina ted when the hybrid system is operating
(If the brake system warning light is illuminated, refer to P. 493).
Rear differential
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LX
75W-85 GL-5 or equivalent
Brakes
Pe d a l c l e a r a n c e*5.8 in. (147 mm) Min.
Pedal free play0.04 - 0.08 in. (1.0 - 2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No.116 DOT 3
Steering
Free playLess than 1.2 in. (30 mm)

5728-2. Customization
LS600hL_U(OM50E41U)
*1:If equipped
*2: The default setting varies according to countries.
*3: U.S.A. only
*4: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-UAL”.
■Vehicle customization
●When the smart access system with push-button start is off, the entry unlock func-
tion cannot be customized.
●When the doors remain closed after un locking the doors and the timer activated
automatic door lock function activates, signals will be generated in accordance
with the operation buzzer volume and operational signal (Emergency flashers)
function settings.
■When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P.
Also, to prevent 12-volt battery discharge, leave the hybrid system operating while
customizing the features.
Illumination
( P. 3 6 0 )
Operation of the outer foot
lights when you approach
the vehicle with the elec-
tronic key on your person
OnOff——O
Operation of the outer foot
lights when the doors are
unlocked with the power
door lock switch
OnOff——O
Seat belt
reminder
(
P. 4 9 6 )
Vehicle speed linked seat
belt reminder buzzerOnOff——O
ItemFunctionDefault
settingCustom-
ized setting123

595What to do if... (Troubleshooting)
LS600hL_U(OM50E41U)●
Is the window lock switch pressed?
The power window except for the one at the driver’s seat can-
not be operated if the window
lock switch is pressed. (P. 1 8 9 )
●The auto power off function will be operated if the vehicle is left
in ACCESSORY mode for a period of time. ( P. 218)
●The seat belt remind er light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 4 9 6 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 2 8 )
Depending on the situation, ot her types of warning buzzer may
also sound. ( P. 493, 503)
The windows do not open or close by operating the power win-
dow switches
The power switch is turned off automatically
A warning buzzer sounds during driving

598
LS600hL_U(OM50E41U)
Alphabetical index
Alphabetical index
A/CAir conditioning filter....................... 469
Front automatic air conditioning system ......................336
Rear air conditioning system......... 351
ABS (Anti-lock Brake System)....... 289 Function ................................................. 289
Warning light .......................................494
Adaptive Front-lighting System (AFS) ...................................................... 235
AFS (Adaptive Front-lighting System) .................................................. 235
Air conditioning filter .......................... 469
Air conditioning system Air conditioning filter....................... 469
Front automatic air conditioning system ..................................................336
Rear air conditioning system......... 351 Airbags ......................................................... 42
Airbag operating conditions .......... 50
Airbag precautions for your child ....................................... 45
Airbag warning light ........................ 494
Correct driving posture .................... 34
Curtain shield airbag operating conditions ......................... 51
Curtain shield airbag precautions .......................................... 45
Front passenger occupant classification system......................... 55
General airbag precautions ........... 45
Locations of airbags.............................42
Modification and disposal of airbags............................................... 49
Side airbag operating conditions ............................................... 51
Side airbag precautions .................... 45
Side and curtain shield airbags operating conditions ......................... 51
Side and curtain shield airbags precautions .......................................... 45
SRS airbags ..............................................42
Alarm Alarm .......................................................... 90
Warning buzzer.................... 493, 503
Anchor brackets...............................66, 67
Antennas (smart access system with push-button start) ..................... 128
Anti-lock Brake System (ABS) ...... 289 Function .................................................. 289
Warning light ....................................... 494
A

599Alphabetical index
LS600hL_U(OM50E41U)
Approach warning............................... 264
Armrest .................................................... 392
Ashtrays.................................................... 379
Assist grips .............................................. 402
Audio/visual system
*
Automatic headlight leveling system .................................................... 236
Automatic High Beam ....................... 238
Automatic light control system....... 234
Auxiliary boxes ........................................ 371 Back-up lights
Replacing light bulbs .........................481
Battery (12-volt battery) .................... 450 If the 12-volt battery is discharged......................................... 527
Preparing and checking before winter.................................................... 325
Warning light ....................................... 494
Battery (traction battery) ....................... 81
Blind Spot Monitor (BSM) ............... 308
Brake Brake Hold ............................................. 231
Fluid .......................................................... 448
Parking brake ...................................... 228
Regenerative braking ......................... 78
Warning light ...........................493, 495
Brake assist ............................................. 289
Brake Hold................................................ 231
Break-in tips ............................................. 199
Brightness control Instrument panel light control ........ 101
BSM (Blind Spot Monitor) ............... 308
B
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.