power steering lexus LC500 2018 Owner's Guide

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4-5. Using the driving support systems
Driving
■EPS, VGRS and DRS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be heard. This does not indicate a malfunction.
■Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically re-
enabled in the following situations:
●When the engine switch
is turned off
●If only the TRC system is turned off, the
TRC will turn on when vehicle speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will not occur when vehicle speed increases.
■Secondary Collision Brake operating
conditions
The vehicle speed is approximately 10 km/h
(6 mph) or more and the airbag sensor detects a collision. (The Secondary Colli-sion Brake will not operate when the vehicle
speed is below approximately 10 km/h [6 mph].)
■Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations:
●The vehicle speed drops below approxi-
mately 10 km/h (6 mph)
●A certain amount of time elapses during
operation
●The accelerator pedal is depressed a
large amount
■If “Check Secondary Collision Brake system” is displayed on the multi-infor-mation display
The system may be malfunctioning. Have the vehicle inspected at any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Reduced effectiveness of the EPS sys-tem
The effectiveness of the EPS system is
reduced to prevent the system from over- heating when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or stop the vehicle and turn
the engine off. The EPS sys- tem should return to normal within 10 min-utes.
■Operating conditions of emergency
brake signal
When the following three conditions are
met, the emergency brake signal will oper- ate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h
(35 mph).
●The brake pedal is depressed in a manner
that cause the system to judge from the vehicle deceleration that this is a sudden braking operation.
■Automatic system cancelation of emer-
gency brake signal
The emergency brake sign al will turn off in
any of the following situations:
●The emergency flashers are turned on.
●The brake pedal is released.
●The system judges from the vehicle deceleration that is not a sudden braking
operation.
WARNING
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as exces-
sively worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.

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4-6. Driving tips
Driving
Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
•Engine coolant
• Power control unit coolant (LC500h)
•Washer fluid
 Have a service technician inspect
the condition of the 12-volt battery.
 Have the vehicle fitted with four
snow tires.
Ensure that all tires are the specified size
and the same brand.
 Tire chains can only be installed on
the rear tires. However, tire chains
cannot be installed on 275/35RF21
or 275/40RF20 rear tires.
Before installing tire ch ains, change all four
tires and wheels to those of the specified
size for use with tire chains (front tires:
245/45RF20, rear tires: 245/45RF20,
wheels: 20 x 8 1/2 J 25 inset). Use the
specified type of tire chains and install
them on the rear tires only.
For details, contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri- ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the
speed limit or the speed limit specified for the snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 50 km/h (30 mph), which-
ever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LKA (Lane-Keeping Assist) system. (if equipped)

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7-1. Essential information
When trouble arises
seconds or more, or press it briefly
3 times or more in succession.
5 Stop the vehicle in a safe place by
the road.
WARNING
■If the engine has to
be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel heavier to turn. Decelerate as much as
possible before turning off the engine .

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7-2. Steps to take in an emergency
7-2.Steps to take in an emergency
If your vehicle needs to be
towed
If towing is necessary, we recom-
mend having your vehicle towed by
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer or commercial
towing service, using a wheel-lift
type truck or flatbed truck.
Use a safety chain system for all
towing, and abide by all state/pro-
vincial and local laws.
WARNING
Observe the following precautions. Failure to do so may result in death or
serious injury.
■When towing the vehicle
LC500: Be sure to transport the vehicle with all four wheels raised off the ground. If the vehicle is towed with the tires con-
tacting the ground, the drivetrain and related parts may be damaged or an accident may occur due to a change in
direction of the vehicle.
LC500h: Be sure to transport the vehi- cle with all four wheels raised off the
ground. If the vehicle is towed with the tires contacting the ground, the drive-train and related parts may be damaged,
an accident may occur due to a change in direction of the vehicle or electricity generated by the operation of the motor
may cause a fire to occur depending on the nature of the damage or malfunction.
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive stress on the towing eyelets,
cables or chains. The towing eyelets, cables or chains may become dam-aged, broken debris may hit people,
and cause serious damage.
●Do not turn the engine switch off.This may lead to an accident as the
rear wheels will be locked by the park- ing lock. Also, there is a possibility that the steering wheel is locked and can-
not be operated.
■Installing towing eyelets to the vehi- cle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.

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7-2. Steps to take in an emergency
When trouble arisesIn the following situations, it is not pos-
sible to be towed by another vehicle
using cables or chains, as the rear
wheels may be locked due to the park-
ing lock. Contact any authorized Lexus
retailer or Lexus authorized repairer,
or any reliable repairer or commercial
towing service.
 There is a malfunction in the shift
control system. ( P.166, 170, 381)
 There is a malfunction in the engine
immobilizer system system>. ( P.70)
 There is a malfunction in the smart
entry & start system. ( P.389)
 The 12-volt battery is discharged.
( P.392)
The following may indicate a problem
with your transmission. Contact any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer or commercial towing service
before towing.
 LC500: The engine is running but
the vehicle does not move.
 LC500h: The hybrid system warn-
ing message is shown on the multi-
information display and the vehicle
does not move.
 The vehicle makes an abnormal
sound.
Do not tow with a sling-type truck to
prevent body damage.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type truck
●Do not tow the vehicle from the rear
when the engine switch is off. The steering lock mecha-nism is not strong enough to hold the
front wheels straight.
●When raising the vehicle, ensure ade- quate ground clearance for towing at the opposite end of the raised vehicle.
Without adequate clearance, the vehi- cle could be damaged while being towed.
■To prevent damage to the vehicle
when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent damage to the vehicle during emergency towing
Do not secure cables or chains to the
suspension components.
Situations when it is not possible
to be towed by another vehicle
Situations when it is necessary to
contact dealers before towing
Towing with a sling-type truck

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7-2. Steps to take in an emergency
When trouble arises
To have your vehicle towed by another
vehicle, the towing eyelet must be
installed to your vehicle. Install the tow-
ing eyelet using the following proce-
dure.
1 Take out the towing eyelet.
( P.339)
2 Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a rag between the screwdriver and the vehicle body as shown in the illustration.
3 Insert the towing eyelet into the
hole and tighten partially by hand.
4 Tighten down the towing eyelet
securely using a wheel nut wrench
or hard metal bar.
5 Securely attach cables or chains to
the towing eyelet.
Take care not to damage the vehicle body.
6 Enter the vehicle being towed and
start the engine .
If the engine does not start, turn the engine switch switch> to IGNITION ON mode .
7 Shift the shift position to N and
release the parking brake.
■While towing
If the engine is not running , the power assist for the brakes and
steering will not function, making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in trunk. ( P.339)
Emergency towing procedure

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7-2. Steps to take in an emergency
■Electric power steering system warning light (warning buzzer)
■PCS warning light
Warning
lightWarning light/Details/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
 When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
 When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS is temporarily unavailable, possibly due to either of
the following:
 An area around the radar sensor or camera sensor being dirty or covered
with condensation, ice, stickers, etc.
 Clear the dirt, condensation, ice, stickers, etc. (P.208)
 Radar sensor or camera sensor operational conditions (such as tempera-
ture etc.) being not met
 Driving is possible in this case. The PCS will be enabled if the opera-
tional conditions (such as temperature etc.) are met again.
 When the warning light is illuminated:
Either the VSC system or PCS is disabled or both are disabled.
 To enable the PCS, enable both the VSC system and PCS. (P.212,
263)

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7-2. Steps to take in an emergency
When trouble arises
■High coolant temperature warning light (warning buzzer)*
*: This light illuminates on the multi-information display.
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on a front passenger seat, the front passenger detection sensor may cause the warning light to flash and the warning buzzer to sound even if a passenger is not
sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warning
light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp w ill come on if the fuel tank becomes completely empty. If
the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer as soon as possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily drops, the electric power steering system warning lig ht may come on and the warning buzzer may sound.
■Tire pressure warning light
When a malfunction occurs in the tire pressure warning system, the tire pressure warning light blinks to warn the driver. However, if the warning light blinks for 1 minute, and then
remains illuminated, maki ng it difficult to determine whether the warning light is blinking, turn the engine switch fr om off to IGNITION ON mode and check if the warning light blinks.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check that the tire inflation
pressure is at the specified level and carry out initialization. ( P.335)
The warning light may come on again if the above operations are conducted without first
allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on du e to natural causes such as natural air leaks
and tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
Warning
lightWarning light/Details/Actions
Indicates that the engine coolant temperature increases
 Stop and check. (P.400, 403)

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7-2. Steps to take in an emergency
■Conditions that the tire pressure warning system may not function properly
 P.330
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning lig ht frequently comes on after blinking for 1 minute when the engine switch is turned to IGNITION ON mode , have it
checked by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio sound.
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliabl e repairer. 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
When the light comes on yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power st eering is lost and handling operations of the steering wheel become extremely heavy. When steering wheel operations are heavier than usual, grip the steering wheel firmly and operate it 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 vehi-
cle control and result in death or serious injury.
●Decelerate to the lowest appropriate speed as soon as possible. Do not drive over 80 km/h (50 mph).
●Check and adjust the tire inflation pressure immediately.
●If the tire pressure warning light comes on ev en after tire inflation pressure adjustment, it is probable that you have a flat tire. Have the flat tire replaced by nearest authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●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.

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7-2. Steps to take in an emergency
When trouble arises
Power was turned off due to the automatic power off function. Next time when starting the hybrid system, operate the hybrid system for approximately 5 minutes to recharge the 12-volt battery.
■If a message that indicates the need for the shift lever operation is shown
To prevent the shift lever from being operated incorrectly or the vehicle from moving unex- pectedly, a message that requires shifting the shift lever may be shown on the multi-informa-
tion display. In that case, follow the instru ction of the message and shift the shift lever.
■If “Front Camera Unavailable” or “Front Camera Vision Blocked Clean and Demist Windshield” is shown
The following systems may be suspended un til the problem shown in the message is resolved.
●PCS
●LKA
●Dynamic radar cruise cont rol with full-speed range
●Automatic High Beam
■If “Engine Stopped Steering Power Low” (LC500) or “Hybrid System Stopped Steer- ing Power Low” (LC500h) is shown
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 “Warming Up Maximum Vehicle Speed: 110km/h” is shown (LC500h)
The transmission is being warmed up and the ve hicle is unable to be driven over 110 km/h (65 mph). Wait until the transmission warms up.
■If “Stop the vehicle in a safe place Shift to P position” is shown (LC500h)
There may be a malfunction in the hybrid system or the shift position may be shifted to N for a long time. Immediately stop the vehicle and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
■If “Oil Maintenance Required Soon” is shown (LC500h)
The engine oil is scheduled to be changed. Check the engine oil, and change if necessary.
After changing the engine oil, the message should be reset. ( P.321)
■If “Engine Oil Level Low Add or Replace” is shown
The engine oil level is low. Check the level of engine oil, and add if necessary. This message
may appear if the vehicle is stopped on a slope. Move the vehicle to a level surface and check to see if the message disappears.
■If a message that indicates the need for referring to Owner’s Manual is shown
●If any of the following messages is shown on the multi-information display, follow the instructions.• “Engine Coolant Temp High” ( P.403, 403)
•“Battery low” ( P.392) • “Transmission Fluid Temp High” ( P.174, 180)
●If any of the following messages is shown on the multi-information display, it may indicate a malfunction. Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
• “Entry & Start System Malfunction”