lexus LC500 2018 Owner's Manual

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7-2. Steps to take in an emergency
When trouble arises
■LKA indicator*
*: This light illuminates on the multi-information display.
■Slip indicator
Warning
lightWarning light/Details/Actions
(orange)
Indicates a malfunction in the LKA (Lane-Keeping Assist)
 When “Lane Keeping Assist Unavailable” is displayed on the multi-
information display, turn the LKA (Lane-Keeping Assist) system off,
drive the vehicle for a short time, and then turn the LKA (Lane-Keeping
Assist) system back on. ( P.221)
When a message other than above is displayed, follow the instructions
displayed in the message.
Warning
lightWarning light/Details/Actions
Indicates a malfunction in:
 The VSC (Vehicle Stability Control) system;
 The TRC (Traction Control) system; or
 The hill-start assist control system
The light will flash when the VSC, TRC or ABS system is operating.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.

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7-2. Steps to take in an emergency
■Brake Override System warning light/Drive-Start Control warning light
(warning buzzer)*
*: This light illuminates on the multi-information display.
■Brake hold operated indicator
■Parking brake indicator
Warning
lightWarning light/Details/Actions
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the Brake Ov erride System or Drive-Start Control
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Indicates that the shift position was changed while depressing the accelera-
tor pedal and Drive-Start Control was operated
 Momentarily release the accelerator pedal.
When the warning light flashes (and a buzzer does not sound):
Indicates that the accelerator and brake pedals are being depressed simulta-
neously
 Release the accelerator pedal and depress the brake pedal.
Warning
lightWarning light/Details/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
(flashes)
Indicates a malfunction in the parking brake system
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.

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7-2. Steps to take in an emergency
When trouble arises
■Brake pad wear warning light (warning buzzer)*
*: This light illuminates on the multi-information display.
■Brake system warning light
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warning buzzer)*
*: Driver’s and front passenger’s seat belt warning buzzer:
The seat belt warning buzzer sounds to alert the driver and front passenger that his or her
seat belt is not fastened. The buzzer sounds for 30 seconds after the vehicle reaches a
speed of 20 km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer will sound in
Warning
lightWarning light/Details/Actions
Indicates that the brake pads are worn out
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
(yellow)
Indicates a malfunction in:
 The electronically controlled brake system
 The regenerated braking system (LC500h)
 The parking brake system
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
Indicates that remaining fuel is approximately 12.1L [3.2 gal., 2.7 Imp.gal.] or
less
 Refuel the vehicle.
Warning
lightWarning light/Details/Actions
Warns the driver and/or front passe nger to fasten their seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat belt
also needs to be fastened to make the warning light (warning buzzer)
turn off.

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7-2. Steps to take in an emergency
a different tone for 90 more seconds.
■Rear passengers’ seat belt reminder lights (warning buzzer*1)*2
*1: Rear passenger’s seat belt warning buzzer:
The seat belt warning buzzer sounds to alert th e rear passengers that his or her seat belt is
not fastened. The buzzer sounds for 30 second s after the vehicle reaches a speed of 20
km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 90 more seconds.
*2: This light illuminates on the center panel.
■Master warning light (warning buzzer)
■Tire pressure warning light
Warning
lightWarning light/Details/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning
lightWarning light/Details/Actions
A buzzer sounds and the warning light comes on and flashes to indicate that
the master warning system has detected a malfunction.
 P.378
Warning
lightWarning light/Details/Actions
When the light comes on:
Low tire inflation pressure such as
 Natural causes (P.375)
 Flat tire (P.384)
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minu tes. In case the light does not turn
off even if the tire inflation pressure is adjusted, have the system
checked by any authorized Lexus reta iler or Lexus authorized repairer,
or any reliable repairer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
 Have the system checked by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

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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
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning system may not operate properly.

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7-2. Steps to take in an emergency
If a warning message is dis-
played
The multi-information display
shows warnings of system malfunc-
tions, incorrectly performed opera-
tions, and messages that indicate a
need for maintenance. When a
message is shown, perform the cor-
rection procedure appropriate to
the message.
When the main meter is in the center
position:
Master warning light
The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.
Multi-information display
Follow the instructions of the message
on the multi-information display.
If any of the warnin g message is shown
again after the following actions have
been performed, contact any autho-
rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
A
B
When the main meter is in the side
position:
Master warning light
The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.
Multi-information display
Follow the instructio ns of the message
on the multi-information display.
If any of the warning message is shown
again after the following actions have
been performed, contact any autho-
rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
A
B

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7-2. Steps to take in an emergency
When trouble arises
The warning lights and warning buzzers operate as follows depending on the con-
tent of the message. If a message indicates the need for inspection by a dealer, have
the vehicle inspected by any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer immediately.
*: A buzzer sounds the first time a message is shown on the multi-information display.
■Warning messages
The warning messages explained below may differ from the actual messages according to operation conditions and vehicle specifications.
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sepa- rate system warning light will come on along with a message or image shown on the multi-
information display.
●Malfunction in the ABS
Messages and warnings
System warning
light
Warning
buzzer*Warning
Comes onComes onSoundsIndicates an important situation, such
as when a system related to driving is
malfunctioning or that danger may
result if the correction procedure is not
performed
Comes onSounds
Comes on or
flashesSounds
Indicates an important situation, such
as when the systems shown on the
multi-information display may be mal-
functioning
FlashesSounds
Indicates a situation, such as when
damage to the vehicle or danger may
result
Comes onDoes not sound
Indicates a condition, such as malfunc-
tion of electrical components, their
condition, or indicates the need for
maintenance
FlashesDoes not sound
Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

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7-2. Steps to take in an emergency
The ABS warning light comes on. ( P.369)
●Malfunction in the charging system
The charging system warning light comes on. ( P.368)
●Malfunction in the brake system
The brake system warning light comes on. ( P.368)
●Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( P.374)
●Remaining fuel level is low
The low fuel level warn ing light comes on. (P.373)
■If “Hybrid System Overheated Reduced Output Power” is shown (LC500h)
This message may be displayed when driving un der severe operating conditions. (For exam- ple, when driving up a long steep hill.) Stop and check. (P.403)
■If “Traction Battery Needs to be Protected Refrain from the Use of N Position” is shown
(LC500h)
The remaining charge for the hybrid battery (tr action battery) is low. As the hybrid battery
(traction battery) cannot be charged when the sh ift position is in N, when stopping the vehi- cle for a long period of time, shift the shift position to P.
■If “Traction Battery needs to be Protected Shift into P to Restart” is shown (LC500h)
The remaining charge for the hybrid battery (tr action battery) is low, because the shift posi- tion has been shifted to N for a long period of time. When moving the vehicle, shift the shift position to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
The driver’s door is opened without turning the engine switch to off with the
shift position in any position other than P. Shift the shift position to P.
■If “Shift Is in N Release Accele rator Before Shifting” is shown
The accelerator pedal has been depressed when the shift position is in N. Release the accel-
erator pedal and shift the shift position to D or R.
■If “Depress Brake when Vehicle Is Stoppe d Hybrid System May Overheat” is shown (LC500h)
The message may be displayed when the accelerator pedal is depressed to hold the vehicle while the vehicle is stopped on an uphill etc. The hybrid system may overheat. Release the accelerator pedal and depress the brake pedal.
■If “Shift system malfunction Driving unavailable” is shown
There is a malfunction in the shift control system. Have the vehicle inspected by any autho- rized Lexus retailer or Lexus authorized repa irer, or any reliable repairer immediately.
■If “Auto Power Off to Conserve Battery” is shown
LC500: Power was turned off due to the automatic power off function. Next time when starting the
engine, increase the engine speed slightly an d maintain that level for approximately 5 min- utes to recharge the 12-volt battery.
LC500h: