ECU lexus LC500 2018 Service Manual

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4-1. Before driving
Driving
WARNING
●LC500:Always apply the parking brake, shift the shift position to P, stop the engine and lock the vehicle.
Do not leave the vehicle unattended while the engine is running.If the vehicle is parked with the shift
position in P but the parking brake is not set, the vehicle may start to move, possibly leading to an accident.
LC500h:Always apply the parking brake, shift the shift position to P, stop the hybrid system and lock the vehicle.
Do not leave the vehicle unattended while the “READY” indicator is illumi-nated.
If the vehicle is parked with the shift position in P but the parking brake is not set, the vehicle may start to move,
possibly leading to an accident.
●LC500: Do not touch the exhaust pipes while the engine is running or immediately after turning the engine
off. Doing so may cause burns.LC500h: Do not touch the exhaust
pipes while the “READY” indicator is illuminated or immediately after turn-ing the hybrid system off.
Doing so may cause burns.
■When taking a nap in the vehicle
Always turn the engine <hybrid system>
off. Otherwise, if you accidentally move the shift lever or depress the accelerator pedal, this could cause an accident or fire
due to engine <hybrid system> overheat- ing. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust gases
may collect and enter the vehicle, lead- ing to death or a serious health hazard.
■When braking
●When the brakes are wet, drive more cautiously.Braking distance increases when the
brakes are wet, and this may cause one side of the vehicle to brake differently than the other side. Also, the parking
brake may not securely hold the vehi- cle.
●If the electronically controlled brake system does not operate, do not follow
other vehicles closely and avoid hills or sharp turns that require braking.In this case, braking is still possible, but
the brake pedal should be depressed more firmly than usual. Also, the brak-ing distance will increase. Have your
brakes fixed immediately.
●The brake system consists of 2 or more individual hydraulic systems; if one of the systems fails, the other(s) will still
operate. In this case, the brake pedal should be depressed more firmly than usual and the braking distance will
increase. Have your brakes fixed immediately.
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time while driving, as this may restrain the engine
<hybrid system> output.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at the same time to hold the
vehicle on a hill.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in
either direction and hold it there for an extended period of time. Doing so may damage the power
steering motor.

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4-1. Before driving
Driving
Cargo and luggage
Take notice of the following infor-
mation about storage precautions,
cargo capacity and load:
WARNING
■Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions. Failure to do so may prevent the pedals from being depressed properly, may
block the driver’s vision, or may result in items hitting the driver or passengers, possibly causing an accident.
●Stow cargo and luggage in the trunk
whenever possible.
●Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rear seats
(when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
• In front of Center Display
●Secure all items in the occupant com-
partment.
■Load and distribution
●Do not overload your vehicle.
●Do not apply loads unevenly. Improper loading may cause deterio-
ration of steering or braking control which may cause death or serious injury.

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4-2. Driving procedures
Driving
Shift lever
Operate the shift lever gently and securely
in the direction of the arrow on the shift
position indicator.
To shift to N, slide the shift lever in the
direction of the arrow and hold it.
Release the shift lever after each shifting
operation to allow it to return to its regular
position ( ).
Shifting to M is only possible when the shift
position is in D.
When shifting from P to N, D or R, from N,
D or R to P, from D to R, or from R to D,
ensure that the brake pedal is being
depressed and the vehicle is stationary.
Shift position indicator
Meter display:
The current shift position is highlighted.
When any shift position other than D or M
is selected, the arrow toward M and M
position indicator are displayed in gray.
Shift lever display:
The current shift position is illuminated.
When selecting the sh ift position, make
sure that the shift position has been
changed to the desired position by check-
ing the shift position indicator provided on
the instrument cluster.
P position switch
■When shifting the shift position to P
Fully stop the vehicle and set the park-
ing brake, and then press the P position
switch.
When the shift position is changed to P, the
switch illuminates.
Check that the shift position indicator
shows P.
Shifting the shift lever
A
B
WARNING
■For the shift lever
●Do not remove the shift lever knob or use anything but a genuine Lexus shift lever knob. Also, do not hang anything
on the shift lever. Doing so could prevent the shift lever from returning to position, causing
unexpected accidents to occur when the vehicle is in motion.
●In order to prevent the shift position from accidentally being changed, do
not touch the shift lever when not using them.
P position switch
C

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4-2. Driving procedures
Driving
sages on the multi-information display.
■After recharging/reconnecting the 12- volt battery
 P.325
■Customization
Settings (e.g. Reverse warning buzzer) can
be changed. (Customizable features: P.423)
Shift lever
Operate the shift lever gently and securely
in the direction of the arrow on the shift
position indicator.
To shift to N, slide the shift lever in the
direction of the arrow and hold it.
Release the shift lever after each shifting
operation to allow it to return to its regular
position ( ).
Shifting to M is only possible when the shift
position is in D.
When shifting from P to N, D or R, from N,
D or R to P, from D to R, or from R to D,
ensure that the brake pedal is being
depressed and the vehicle is stationary.
Shift position indicator
Meter display:
The current shift position is highlighted.
When any shift position other than D or M
is selected, the arrow toward M and M
WARNING
■When driving on slippery road sur- faces
Do not accelerate or shift the shift posi- tion suddenly. Sudden changes in engine braking may
cause the vehicle to spin or skid, resulting in an accident.
NOTICE
■Hybrid battery (traction battery) charge
If the shift position is in N, the hybrid bat- tery (traction battery) will not be
charged. To help prevent the battery from discharging, avoid leaving the N position selected for an extended period
of time.
■Situations where shift control system malfunctions are possible
If any of the following situations occur, shift control system malfunctions are possible. Immediately stop the vehicle in
a safe place on level ground, apply the parking brake, and then contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
●When the warning message indicating the shift control system appears on the
multi-information display.
●The display indicates that no shift posi- tion is selected for more than a few seconds.
Shifting the shift lever
A
B

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4-4. Refueling
Driving
4-4.Refueling
Turn the engine switch <power
switch> off and ensure that both side
doors and windows are closed.
 Confirm the type of fuel.
■Fuel types
 P.421
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi- cle has a fuel tank opening that only accom-
modates the special nozzle on unleaded fuel pumps.
Opening the fuel tank cap
Before refueling the vehicle
WARNING
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal surface to discharge
any static electricity. It is important to discharge static electricity before refu-eling because sparks resulting from
static electricity can cause fuel vapors to ignite while refueling.
●Always hold the grips on the fuel tank
cap and turn it slowly to remove it. A whooshing sound may be heard when the fuel tank cap is loosened.
Wait until the sound cannot be heard before fully removing the cap. In hot weather, pressurize d fuel may spray
out the filler neck and cause injury.
●Do not allow anyone that has not dis- charged static electricity from their body to come close to an open fuel
tank.
●Do not inhale vaporized fuel. Fuel contains substances that are
harmful if inhaled.
●Do not smoke while refueling the vehi- cle.Doing so may cause the fuel to ignite
and cause a fire.
●Do not return to the vehicle or touch any person or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel
tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel noz-zle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling. Doing so may damage the vehicle, such
as causing the emission control system to operate abnormally or damaging fuel system components or the vehicle’s
painted surface.

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4-4. Refueling
1Press the opener.
2 Open the fuel filler door until it is
securely locked.
3 Turn the fuel tank cap slowly and
remove it, then put it into the holder
on the fuel filler door.
■If the fuel filler door cannot be opened
 P.388
After refueling, turn the fuel tank cap
until you hear a click. Once the cap is
released, it will turn slightly in the oppo-
site direction.
Opening the fuel tank capClosing the fuel tank cap
WARNING
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing so may cause a fire or other inci-
dent which may result in death or serious injury.

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4-5. Using the driving support systems
Driving
cannot be detected.
*2: The greater the difference in speed between your vehicle and the detected vehicle is,
the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.
■The BSM function is operational when
The BSM function is operational when all of
the following conditions are met:
●The BSM function is on.
●The shift position is in a position other than R.
●The vehicle speed is greater than approx-imately 16 km/h (10 mph).
■The BSM function will detect a vehicle
when
The BSM function will detect a vehicle pres-
ent in the detection area in the following sit- uations:
●A vehicle in an adjacent lane overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under wh ich the BSM func- tion will not detect a vehicle
The BSM function is not designed to detect the following types of vehicles and/or
objects:
●Small motorcycles, bicycles, pedestrians,
etc.*
●Vehicles traveling in the opposite direc- tion
●Guardrails, walls, signs, parked vehicles
and similar stationary objects*
●Following vehicles that are in the same
lane*
●Vehicles traveling 2 lanes away from your
vehicle*
*: Depending on the conditions, detection
of a vehicle and/or object may occur.
■Conditions under wh ich the BSM func- tion may not function correctly
●The BSM function may not detect vehi-
cles correctly in the following situations: • When the sensor is misaligned due to a strong impact to the sensor or its sur-
rounding area • When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding area
on the rear bumper • When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog • When multiple vehicles are approaching with only a small gap between each vehi-
cle • When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and the vehi-cle that enters the detection area
• When the difference in speed between your vehicle and another vehicle is changing
• When a vehicle enters a detection area traveling at about the same speed as your
vehicle • As your vehicle starts from a stop, a vehi-cle remains in the detection area
• When driving up and down consecutive steep inclines, such as hills, dips in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces• When vehicle lanes are wide, or when
driving on the edge of a lane, and the vehicle in an adjacent lane is far away from your vehicle
• When an accessory (such as a bicycle carrier) or towing eyelet is installed to the rear of the vehicle
• When there is a significant difference in height between your vehicle and the vehicle that enters the detection area
• Immediately after the BSM function is turned on
●Instances of the BSM function unneces-sarily detecting a vehicle and/or object may increase in the following situations:

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4-5. Using the driving support systems
• When the sensor is misaligned due to a strong impact to the sensor or its sur-rounding area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the detection area is short
• When driving up and down consecutive steep inclines, such as hills, dips in the road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehi-cle traveling in a lane other than the adja-
cent lanes enters the detection area • When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When the tires are slipping or spinning • When the distance between your vehicle and a following vehicle is short
• When an accessory (such as a bicycle carrier) or towing eyelet is installed to the rear of the vehicle
■Operation of the RCTA function
The RCTA function uses radar sensors to detect vehicles approaching from the
right or left at the rear of the vehicle and alerts the driver of the presence of such
vehicles by flashing the outside rear view mirror indicators and sounding a buzzer.
Approaching vehicles
Detection areas of approaching vehicles
■RCTA icon display
When a vehicle approaching from the
right or left at the rear of the vehicle is
detected, the following will be dis-
played on the monitor screen
WARNING
■Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking care to observe your surroundings.
The BSM function is a supplementary function which alerts the driver that a
vehicle is in a blind spot of the outside rear view mirrors or is approaching rap-idly from behind into a blind spot. Do not
overly rely on the BSM function. As the function cannot judge if it is safe to change lanes, over reliance could lead to
an accident resulting in death or serious injury.
As the system may not function correctly under certain conditions, the driver’s own visual confirmation of safety is necessary.
RCTA function
A
B

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5-5. Using the storage features
Interior features
Raise the hooks when needed.
The cargo hooks are provided for securing
loose items.
1 Loosen the belt
2 Tighten the belt
■Loosening/tightening the belt
1 Loosen the belt
2 Tighten the belt
■Stowing the belt
1 Fold the belt
Trunk features
Cargo hooks
WARNING
■When the cargo hooks are not in use
To avoid injury, always return the cargo hooks to their stowed positions when not in use.
Grocery bag hooks
NOTICE
■To prevent damage to the grocery
bag hooks
Do not hang any object heavier than 2 kg
(4 lb.) on the grocery bag hooks.
First-aid kit storage belt
Warning reflector storage belt

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5-5. Using the storage features
2Secure the belt with the clip
To prevent damage to the warning reflec-
tor storage belt when it is not in use, stow
the belt.