2018 Lexus LC500h warning

3347-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
■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.
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.

3357-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
7
When trouble arises
■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.

3367-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
■PCS warning light
■LKA (Lane-Keeping Assist) indicator*
*: This light illuminates on the multi-information display.
Warning lightWarning light/Details/Actions
(yellow)
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision System)
 Have the vehicle inspected by your Lexus dealer immediately.
When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Collisi on System) is temporarily unavail-
able, possibly due to either of the following:
 An area around the radar sensor or camera sensor being dirty or cov-
ered with condensation , ice, stickers, etc.
 Clear the dirt, condensation, ice, stickers, etc. ( P.179)
 Radar sensor or camera sensor oper ational conditions (such as tem-
perature etc.) being not met.
 Driving is possible in this case. The PCS (Pre-Collision System) will
be enabled if the operational cond itions (such as temperature etc.)
are met again.
When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS (Pre-Collision
System) is disabled or both are disabled.
 To enable the PCS, enable bo th the VSC system and PCS.
(  P.186, 228)
Warning lightWarning light/Details/Actions
Indicates a malfunction in th e LKA (Lane-Keeping Assist)
 When “Lane Keeping Assist Unavaila ble” is displayed on the multi-
information display, turn the LK A (Lane-Keeping Assist) system
off, drive the vehicle for a short time, and then turn the LKA (Lane-
Keeping Assist) system back on. ( P.193)
When a message other than above is displayed, follow the instruc-
tions displayed in the message.

3377-2. Steps to take in an emergency
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7
When trouble arises
■Slip indicator
■Brake Override System warning light/Drive-Start Control warning light
(warning buzzer)*
*: This light illuminates on the multi-information display.
■Brake hold operated indicator
Warning lightWarning light/Details/Actions
Indicates a malfunction in:
 The VSC (Vehicle Stability Control) system;
 The TRAC (Traction Control) system; or
 The hill-start assist control system
The light will flash when the VSC, TRAC or ABS system is operating.
 Have the vehicle inspected by your Lexus dealer immediately.
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.

3387-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
■Parking brake indicator
■Brake pad wear warning light (warning buzzer)*
*: This light illuminates on the multi-information display.
■Brake system warning light
■Low fuel level warning light
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.
Warning lightWarning light/Details/Actions
(U.S.A.)
or
(Canada)Indicates that the brake pads are worn out
 Have the vehicle inspected by your Lexus dealer.
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.

3397-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
7
When trouble arises
■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 is turned to IGNITION ON mode mode>, the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20
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.
■Rear passengers’ seat belt r eminder lights (warning buzzer*1)*2
*1: Rear passenger’s seat belt buzzer:
The rear passenger’s seat belt buzzer sounds to alert the rear passenger that his or her seat
belt is not fastened. The buzzer sounds for 6 seconds if the vehicle reaches a speed of 12
mph (20 km/h). Then, if the seat belt is still un fastened, the buzzer will sound in a different
tone for 24 more seconds.
*2: This light illuminates on the center panel.
■Master warning light (warning buzzer)
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.
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 ligh t comes on and flashes to indicate
that the master warning system has detected a malfunction.
 P.344

3407-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
■Tire pressure warning light
■High coolant temperature warning light (warning buzzer)*
*: This light illuminates on the multi-information display.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (door), side impa ct sensors (front), side impact sensors (rear), driver’s seat
position sensor, driver’s seat belt buckle switch, front passeng er occupant classification sys-
tem (ECU and sensors), “AIR BAG ON” indicat or light, “AIR BAG OFF” indicator light,
front passenger’s seat be lt buckle switch, seat belt preten sioners, airbags, interconnecting
wiring and power sources. ( P.29)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the 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 the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off af ter several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon as pos-
sible.
Warning lightWarning light/Details/Actions
When the light comes on:
Low tire inflation pressure such as
 Natural causes ( P.341)
 Flat tire ( P.350)
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a few mi nutes. In case the light does not
turn off even if the tire inflation pressure is adjusted, have the sys-
tem checked by your Lexus dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
 Have the system checked by your Lexus dealer.
Warning lightWarning light/Details/Actions
Changes from a flashing to a solid light when the engine coolant tem-
perature increases
Stop and check. ( P.364, 366)

3417-2. Steps to take in an emergency
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7
When trouble arises
■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 syst em warning light may come on and the warning buzzer may
sound.
■Tire pressure warning light
When a malfunction occurs in the tire pressu re 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, making it difficult to determine whether the warning light is blinking,
turn the engine switch from off to IGNITION ON mode and
check if the warning light blinks.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire pres-
sure warning reset switch will not turn off the tire pressure warning light.
■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.303
■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 is turned to IGNITION ON mode , have it
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.