2018 Lexus LC500 brake

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7-2. Steps to take in an emergency
■Brake system warning light (warning buzzer)
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light (warning buzzer)*
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but 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 any auth orized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Actions to the warning li ghts or warning buzzers
Warning
lightWarning light/Details/Actions
(red)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
This light also comes on when the park ing brake is not released. If the light
turns off after the parking brake is fully released the system is operating nor-
mally.
 Immediately stop the vehicle in a safe place and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Continuing to drive the vehicle may be dangerous.
Warning
lightWarning light/Details/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Warning
lightWarning light/Details/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact 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
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
■SRS warning light
■ABS warning light (warning buzzer)
Warning
lightWarning light/Details/Actions
Indicates a malfunction in:
 The electronic engine control system;
 The hybrid system (LC500h);
 The electronic throttle control system;
 The electronic automatic transmission control system (LC500); or
 The electronic hybrid transmission control system (LC500h)
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
Indicates a malfunction in:
 The SRS airbag system; or
 The seat belt pretensioner 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 a malfunction in:
 The ABS; or
 The brake assist 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
■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
■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
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:

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7-2. Steps to take in an emergency
steering lock system.
Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer if the problem cannot be repaired,
or if repair procedures are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally. Do not use this starting proce-
dure except in cases of emergency.
1 Press the parking brake switch to
check that the parking brake is set.
( P.187)
Parking brake indicator will come on.
2Turn the engine switch to ACCES-
SORY mode.
3 Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by any authorized Lexus
retailer or Lexus authorized repairer,
or any reliable repairer.
One of the following may be the cause
of the problem:
 The electronic key may not be func-
tioning properly. ( P.390)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.201)
 There may be a malfunction in the
immobilizer system. ( P.70)
 There may be a malfunction in the
shift control system.* ( P.170)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
*: It may not be possible to shift the shift
position from P.
Starting the engine in an emer-
gency
If the hybrid system will not
start (LC500h)
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
( P.167)

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7-2. Steps to take in an emergency
When trouble arises
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( P.392)
 The 12-volt battery terminal con-
nections may be loose or corroded.
( P.326)
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( P.392)
 One or both of the 12-volt battery
terminals may be disconnected.
( P.326)
Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer if the problem cannot be repaired,
or if repair procedures are unknown.
When the hybrid system does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally. Do not use this starting pro-
cedure except in cases of emergency.
1 Press the parking brake switch to
check that the parking brake is set.
( P.187)
Parking brake indicator will come on.
2Turn the power switch to ACCES-
SORY mode.
3 Press and hold the power switch for
about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be
started using the above steps, the sys-
tem may be malfunctioning. Have the
vehicle inspected by any authorized
Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.
The interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the hybrid system in an
emergency