3357-2. Steps to take in an emergency
7
When trouble arises
■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)*
*: This light illuminates on the multi-information display.
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, 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 lightWarning light/Details/Actions
(U.S.A.)
(red)
(Canada)
Indicates that:
The brake fluid level is low; or
The brake system is malfunctioning
This light also comes on when the pa rking brake is not released. If the
light turns off after the parking brake is fully released the system is oper-
ating normally.
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 lightWarning light/Details/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightWarning light/Details/Actions
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
3367-2. Steps to take in an emergency
■Malfunction indicator lamp (warning buzzer)
■SRS warning light
■ABS warning light (warning buzzer)
■Electric power steering system warning light (warning buzzer)
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
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 your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
Indicates a malfunction in:
The SRS airbag system;
The front passenger occupant classification system; or
The seat belt pretensioner system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Indicates a malfunction in:
The ABS; or
The brake assist system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
(red)
or
(yellow)Indicates a malfunction in the EPS (Electric Power Steering) system
Have the vehicle inspected by your Lexus dealer immediately.
3387-2. 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 Override System or Drive-Start
Control
Have the vehicle inspected by your Lexus dealer immediately.
Indicates that the shift position wa s changed while depressing the accel-
erator pedal and Drive-Start Control was operated
Momentarily release th e accelerator pedal.
When the warning light flashes (and a buzzer does not sound):
Indicates that the accelerator and brake pedals are being depressed
simultaneously
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 your Lexus dealer.
Warning lightWarning light/Details/Actions
(flashes)
(U.S.A.) or
(flashes)
(Canada)
Indicates a malfunction in the parking brake system
Have the vehicle inspected by your Lexus dealer immediately.
3397-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warning buzzer)*
*: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert th e driver that his or her seat belt is not fas-
tened. Once the engine switch
km/h), the buzzer sounds once. If the seat belt is still unfastened afte r 24 seconds, the
buzzer will sound interm ittently for 6 seconds. Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or her
seat belt is not fasten ed. The buzzer sounds once if the vehicle reaches a speed of 12 mph
(20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound inter-
mittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a dif-
ferent tone for 90 more seconds.
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 your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
Indicates that remaining fuel is approximately 3.3 gal. [12.6 L, 2.8
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.
3427-2. Steps to take in an emergency
■The tire pressure warning light may come on due to natural causes
The tire pressure warnin g light may come on due to natural causes such as natural air leaks
and tire inflation pressure chan ges caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■Conditions that the tire pressure wa rning system may not function properly
P.304
■If the tire pressure warning light freque ntly 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
checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features: P.391)
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehicle
will become extremely unstable during brakin g, 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 in yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power steering 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 appr opriate speed as soon as possible. Do not drive over 50
mph (80 km/h).
●Check and adjust the tire in flation pressure immediately.
●If the tire pressure warning lig ht comes on even after tire inflation pressure adjustment,
it is probable that you have a flat tire. Have the flat tire replaced by the nearest Lexus
dealer.
●Avoid abrupt maneuvering and braking. If th e 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.
3457-2. Steps to take in an emergency
7
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 your Lexus dealer 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
The ABS warning light comes on. ( P.336)
●Malfunction in the charging system
The charging system warning light comes on. ( P.335)
●Malfunction in the brake system
The brake system warning light comes on. ( P.335)
Messages and warnings
System warn-
ing lightWarning
buzzer
*Warning
Comes onComes onSoundsIndicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
Comes onSounds
Comes on or flashesSounds
Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning
FlashesSoundsIndicates a situation, such as when damage
to the vehicle or danger may result
Comes onDoes not soundIndicates a condition, such as malfunction of
electrical components, their condition, or
indicates the need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an oper-
ation has been performed incorrectly, or
indicates how to perform an operation cor-
rectly
3467-2. Steps to take in an emergency
●Malfunction in the EPS (Electric Power Steering) system
The electric power steering sy stem warning light comes on. ( P.336)
●Malfunction in the tire pressure warning system
The tire pressure warn ing light comes on. ( P.340)
●Remaining fuel level is low
The low fuel level warning light comes on. ( P.339)
■If “Hybrid System Overheated Reduce d Output Power” is shown (LC500h)
This message may be displayed when driving under severe operating conditions. (For exam-
ple, when driving up a long steep hill.) Stop and check. ( P.366)
■If “Traction Battery Needs to be Protected Re frain from the Use of N Position” is shown
(LC500h)
This message may be displayed wh en the shift position is in N.
As the hybrid battery (traction battery) cannot be charged when the shift position is in N,
shift the shift position to P when the vehicle is stopped.
■If “Traction Battery needs to be Protected Shift into P to Restart” is shown (LC500h)
This message is displayed when the hybrid ba ttery (traction battery) charge has become
extremely low because the vehicle has been left with the N shift position selected for a cer-
tain amount of time.
When operating the vehicle, shift 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
shift lever in any position other than P. Shift the shift position to P.
■If “Shift Is in N Release Accelerator Before Shifting” is shown
The accelerator pedal has been depressed when th e 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 de press 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 your Lexus
dealer 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 battery.
LC500h:
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.
3537-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The 12-volt battery may be dis-
charged. ( P.357)
The 12-volt battery terminal con-
nections may be loose or corroded.
( P.301)
One of the following may be the cause
of the problem:
The 12-volt battery may be dis-
charged. ( P.357)
One or both of the 12-volt battery
terminals may be disconnected.
( P.301)
Contact your Lexus dealer 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 procedure
except in cases of emergency. 1
Press the parking brake switch to
check that the parking brake is set.
(P.168)
Parking brake indicator will come on.
2 Turn 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 your Lexus dealer.
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