warning light lexus LC500 2018 Manual PDF

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6-3. Do-it-yourself maintenance
Blown fuse
Type D
Normal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure that the tab is installed securely.
●If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement. ( P.355)
●If the replaced fuse blows again, have the
vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to cir- cuits designed to prevent overload, non-genuine parts or parts not designed for this
vehicle may be unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions. Failure to do so may cause damage to
the vehicle, and possibly a fire or injury.
B
A
B
●Never use a fuse of a higher amperage rating than that indicated, or use any
other object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.Never replace a fuse with a wire, even
as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload
determined and repaired by any autho- rized Lexus retailer or Lexus authorized repairer, or any reliable repairer as soon
as possible.

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6-3. Do-it-yourself maintenance
■Rear fog light
1 Disconnect the connector.
2 Turn the bulb base counterclock-
wise.
3 Remove the light bulb.
4 Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
5 Reconnect the connector.
After reconnecting the connector, turn on the rear fog light to visually check that
there is no light leaking from the bulb base.
Replacing light bulb
WARNING
■Replacing light bulb
●Turn off the light. Do not attempt to replace the bulb immediately after turning off the light.
The bulb become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth to avoid getting moisture and oils on the
bulb. Also, if the bulb is scratched or dropped, it may blow out or crack.

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6-3. Do-it-yourself maintenance
Maintenance and care
WARNING
●Fully install light bulb and any parts used to secure it. Failure to do so may result in heat damage, fire, or water
entering the light unit. This may dam- age the light or cause condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulb is fully seated and locked.
●Check the wattage of the bulb before
installing to prev ent heat damage.

7
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7
When trouble arises
When trouble arises
7-1. Essential information
Emergency flashers ................. 360
If your vehicle has to be stopped in
an emergency.......................... 360
7-2. Steps to take in an emergency
If your vehicle needs to be towed
........................................................ 362
If you think something is wrong
........................................................ 366
Fuel pump shut off system
(LC500) ................................... 367
If a warning light turns on or a
warning buzzer sounds ....... 368
If a warning message is displayed
........................................................ 378
If you have a flat tire.................. 384
If the engine will not start
(LC500) ................................... 385
If the hybrid system will not start
(LC500h) ................................. 386
If you lose your keys ................. 388
If the fuel filler door cannot be
opened ....................................... 388
If the electronic key does not
operate properly .................... 389
If the 12-volt battery is discharged
........................................................ 392
If your vehicle overheats
(LC500) ................................... 400
If your vehicle overheats
(LC500h) ................................. 403
If the vehicle becomes stuck 407

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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
■Electric power steering system warning light (warning buzzer)
■PCS warning light
Warning
lightWarning light/Details/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
Warning
lightWarning light/Details/Actions
 When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS
 Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.
 When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS is temporarily unavailable, possibly due to either of
the following:
 An area around the radar sensor or camera sensor being dirty or covered
with condensation, ice, stickers, etc.
 Clear the dirt, condensation, ice, stickers, etc. (P.208)
 Radar sensor or camera sensor operational conditions (such as tempera-
ture etc.) being not met
 Driving is possible in this case. The PCS will be enabled if the opera-
tional conditions (such as temperature etc.) are met again.
 When the warning light is illuminated:
Either the VSC system or PCS is disabled or both are disabled.
 To enable the PCS, enable both the VSC system and PCS. (P.212,
263)

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7-2. Steps to take in an emergency
When trouble arises
■LKA indicator*
*: This light illuminates on the multi-information display.
■Slip indicator
Warning
lightWarning light/Details/Actions
(orange)
Indicates a malfunction in the LKA (Lane-Keeping Assist)
 When “Lane Keeping Assist Unavailable” is displayed on the multi-
information display, turn the LKA (Lane-Keeping Assist) system off,
drive the vehicle for a short time, and then turn the LKA (Lane-Keeping
Assist) system back on. ( P.221)
When a message other than above is displayed, follow the instructions
displayed in the message.
Warning
lightWarning light/Details/Actions
Indicates a malfunction in:
 The VSC (Vehicle Stability Control) system;
 The TRC (Traction Control) system; or
 The hill-start assist control system
The light will flash when the VSC, TRC or ABS system is operating.
 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.