warning lights LEXUS LS600H 2017 User Guide

1122. Instrument cluster
LS600h/LS600hL_EE(OM50G20E)
Warning lights inform the driver of malfunctions in the indicated vehicle’s
systems.
*1: These lights come on when the power switch is turned to ON mode to indicate
that a system check is being performed. They will go off after the hybrid system is
on, or after a few seconds. There may be a malfunction in a system if the lights do
not come on, or go off. Have the vehi cle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
*2: The light flashes to indicate a malfunction.
Warning lights
*1
Brake system warning light
( P. 555)
*1, 2
(if equipped)
Brake hold operated indi-
cator ( P. 557)
*1Charging system warning
light ( P. 556)
*1, 2Parking brake indicator
( P. 557)
*1Malfunction indicator
lamp ( P. 556)
*1Brake system warning light
( P. 557)
*1SRS warning light
( P. 556)
Open door warning light
( P. 558)
*1ABS warning light
( P. 556)
Low fuel level warning light
( P. 558)
*1Electric power steering
system warning light
( P. 557)
Seat belt reminder light
( P. 558)
*1, 2
(if equipped)
Pre-crash safety system
warning light ( P. 557)
*1
Master warning light
( P. 558)
*1
Slip indicator (P. 557)*1Tire pressure warning light
( P. 559)

1142. Instrument cluster
LS600h/LS600hL_EE(OM50G20E)
*1: These lights come on when the power switch is turned to ON mode to indicate
that a system check is being performed. They will go off after the hybrid system is
on, or after a few seconds. There may be a malfunction in a system if the lights do
not come on, or go off. Have the vehi cle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off. The light flashes faster than
usual to indicate that the system is operating.
*4: In order to confirm operation, the BSM outside rear view mirror indicators illumi-
nate in the following situations:
• When the power switch is turned to ON mode while the BSM main switch is
set to ON.
• When the BSM main switch is set to ON while the power switch is in ON
mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators
will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not turn off,
there may be a malfunction with the system.
If this occurs, have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
*1Parking brake
indicator ( P. 263)
*1“PASSENGER
AIR BAG” indica-
tor ( P. 61)
*4
(if equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators ( P. 366)
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not come on
when you start the hybrid system, this could mean that these systems are not avail-
able to help protect you in an accident, which could result in death or serious injury.
Have the vehicle inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately if this occurs.

2654-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■Parking brake indicator light
●Depending on the power switch mode, the parking brake indicator light will come
on and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
●When the power switch is turned off with the parking brake set, the parking brake
indicator light will stay on for about 15 seconds. This does not indicate a malfunc-
tion.
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven at a speed of approximately 5 km/h (3
mph) or more with the parking brake engaged.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. ( P. 555, 563)
Depending on the condition, the parking brake indicator light may flash.
■Usage in winter time
 P. 384
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, shift the shift lever to P and
make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake.
( P. 599)
Driving the vehicle with the parking brake set will lead to brake components over-
heating, which may affect braking performance and increase brake wear.

2674-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■When the parking brake is set automatically while the system is holding the brakes
The parking brake will not be released automatically. Release the parking brake by
operating the parking brake switch, making sure that the parking brake indicator
light goes off. ( P. 263)
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( P. 557, 563)
CAUTION
■When the vehicle is on a steep incline
When using the brake hold system on a steep incline exercise caution. The brake
hold function may not hold the vehicle in such a situation.
■When stopped on a slippery road
The system cannot stop the vehicle when the gripping ability of the tires has been
exceeded. Do not use the system when stopped on a slippery road.
NOTICE
■When parking the vehicle
The brake hold system is not designed for use when parking the vehicle for a long
period of time. Turning the power switch off while the system is holding the brake
may release the brake, which would cause the vehicle to move. When operating
the power switch, depress the brake pedal, set the parking brake and shift the shift
lever to P.

3304-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
■After the vehicle has been parked in the sun
The LKA system functions may not be available and a warning message ( P. 563)
will be displayed for a while after driving has started. In such cases, turn the LKA sys-
tem off and turn it on again after normal temperature returns. When the temperature
in the cabin decreases and the temperature around the camera sensor ( P. 324)
becomes suitable for its operation, the functions will begin to operate.
■If there are lane markers on only one side of the vehicle
The lane keeping assist function will not operate. Also, the lane departure warning
will not operate for the side on which lane markers could not be recognized.
■Conditions in which the function may not operate correctly
In the following conditions, the LKA system functions may not operate, or it may not
be possible to ensure adequate performance. Also, the camera sensor may be
unable to recognize lane lines causing the lane departure warning function to oper-
ate incorrectly, or the lane keeping assist function may not operate properly. How-
ever, this does not indicate a malfunction.
●When driving through an area with no lane markers, such as a tollbooth, a crossing
or before a ticket checkpoint
●When driving on a sharp curve
●When lanes are extremely narrow or extremely wide
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure
●When the following distance between your vehicle and the vehicle ahead is
extremely short
●When the lane markers are yellow (These may be more difficult for the system to
recognize compared to white markers.)
●When the lane markers are broken, “Raised pavement marker” or stones
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When there are shadows on the road running parallel with lane markers, or if a
shadow covers the lane markers
●When driving on a particularly bright road surface, such as concrete
●When driving on a road surface that is bright due to reflected light
●When driving in a location where the li ght level changes rapidly, such as the
entrance to or exit from a tunnel
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens
●When driving on roads that are branching or merging

3314-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
●When driving on a road surface that is wet due to rain, previous rainfall, standing
water, etc.
●When the vehicle experiences strong up-and-down motion such as when driving
on an extremely rough road or on a seam in the pavement
●When headlight brightness at nighttime is reduced due to dirt on the lenses, or
when the headlights are misaligned
●When driving with a strong crosswind
●When driving on winding roads or roads that are uneven
●When driving on rough or unpaved roads
■When changing the tires
Depending on the tires used, such as snow tires, etc., sufficient performance may not
be maintainable.
■Warning messages for LKA
Warning messages are used to indicate a system malfunction or to inform the driver
of the need for caution while driving. ( P. 563)
CAUTION
■Before using the LKA system
Do not rely solely on the LKA system. The LKA system does not drive the vehicle
automatically, nor does it reduce the amount of care you need to take. As such, the
driver must always assume full responsibility for understanding his/her
surroundings, for operating the steering wheel to correct the driving line, and for
driving safely.
Inappropriate or negligent driving could lead to an accident.
■To avoid operating the LKA by mistake
Switch the LKA off using the LKA switch when not in use.

3614-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
The rear radar sensor detects
objects approaching from behind
and determines whether a rear-end
collision is imminent based on the
position, speed and heading of the
object before it happens.
■System operating conditions
When the power switch is in ON mode and there is a possibility of a rear-end colli-
sion due to a vehicle in the same lane approaching from the rear, the system oper-
ates if all of the following conditions are met:
●Warning for the approaching vehicle (emergency flashers):
• The relative speed difference between your vehicle and the vehicle approach-
ing from behind is greater than about 30 km/h (18 mph).
• When the vehicle is stationary or moving forward while the brake pedal is
depressed.
• When the turn signal lights and emergency flashers are off.
●Whiplash mitigation (pre-crash intelligent head restraints):
• The relative speed difference between your vehicle and the vehicle approach-
ing from behind is greater than about 15 km/h (9 mph).
• Your vehicle is stopped or moving forward.
■Whiplash mitigation
The pre-crash intelligent head restraint may not stop in the proper position if a hat is
worn or the occupant’s hair is bound at the back.
Rear radar sensor

3624-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
■Conditions in which it is hard for the sensor to detect objects
The rear pre-crash safety system is not a system that can detect all possible rear-end
collisions. The system may not operate in th e following situations. Always be aware of
the surrounding conditions.
●The vehicle posture is abnormal.
●The sensor may not detect objects such as bicycles and motorcycles.
●Raindrops, ice or snow are attached to the rear bumper.
●The road has curves or is bumpy.
●A rear-end collision occurs from an angle or with a large offset.
■Conditions that may trigger the system even if there is no danger of a rear-end col-
lision
●Another vehicle drives past just behind your vehicle when your vehicle is stopped
to turn right or left.
●Another vehicle drives past just beside your vehicle when your vehicle is stopped
on the side of the road.
●The vehicle behind you passes your vehicle from a short distance while your vehicle
is moving.
●The vehicle behind you approaches your vehicle rapidly to a close distance while
your vehicle is moving or stopped.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( P. 557, 563)

5557-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
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 necessarily indicate a malfunction in the system. However, if this
continues to occur, have the vehicl e inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Stop the vehicle immediately. Cont inuing to drive the vehicle may
be dangerous.
Warning lightWarning light/Details
Brake system warning light (warning buzzer) • Low brake fluid
• Malfunction in the electronically controlled brake system

5627-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■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
dealer or repairer, or another duly qualified and equipped professional. 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
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 the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●As the tire inflation pressure may be low when this warning light is illuminated,
stop your vehicle in a safe place as soon as possible and adjust the tire inflation
pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●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.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warn-
ing system may not operate properly.