2019 LEXUS GS300H sensor

3565-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■nanoe *1 system (if equipped)
Your vehicle incorporates a nanoe  device, which is considered a biocidal product. The nanoe  device generates charged water particles from the ambient air and these purify
the air in the cabin by suppressing bacteria.
The nanoe  device is considered a biocidal product in the EU according to the interpre- tation of Regulation (EU) No 528/2012.
Active substances: Charged water particles (nano) containing hydroxyl radicals, gener- ated from ambient air
nanoe  helps to provide purified air by emitting electrically charged water particles
through the front center vent on the driver’s side*2.
●When the fan is turned on and “nanoe” on the option control screen is selected, the nanoe  system is activated.
●When the fan is operated in the following conditions, system performance will be maxi- mized. If the following conditions are not met, performance will be limited.
• The , or air outlets are being used.
• The front center vent on driver’s side is open.
●When nanoe  is generated, a small amount of ozone is emitted and may be faintly smelled in some situations. However, this is approximately the same as the amount that
already exists in nature, such as in forests, and it has no affect on the human body.
●A slight noise may be heard during operation. This is not a malfunction.
*1:nanoe  and the nanoe mark are trademarks of Panasonic Corporation.
*2: According to temperature and humidity conditions, fan speed and direction of the
air flow, the nanoe  system may not operate at full capacity.
■Air conditioning filter
 P. 433
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed. (Customizable features: P. 561)

3926-1. Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located istouched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor body or if something bumps into the raindropsensor
■Precautions regarding the exhaust pipes
Exhaust gases cause the exhaust pipes to become quite hot.
When washing the vehicle, be careful not to touch the pipes until they have cooled suf-
ficiently, as touching hot exhaust pipes can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult any authorized Lexus re tailer or Lexus authorized repairer, or any reliable repairer.
Turn off AUTO mode of the wiper to prevent
the wiper from operating. ( P. 251) If AUTO mode is selected, the wipers mayoperate unexpectedly in the following situa-
tions, and may result in hands being caught or other serious injuries and cause damage to thewiper blades.

4617-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
ABS warning light 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.
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steering) sys- tem Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.
(Flashes) (If equipped)
PCS (Pre-Crash Safety system) warning light
●When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Crash Safety system)  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immedi-
ately.
●When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Crash Safety system) 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. 264, 285)
• Radar sensor or camera sensor operational conditions (such as temperature etc.) being not met Driving is possible in this case. The PCS (Pre-Crash Safety
system) will be enabled if the operational conditions (such as temperature etc.) are met again.
●When the warning light is illuminated:Either the VSC (Vehicle Stability Control) system or PCS (Pre-Crash Safety system) is disabled or both are disabled.
 To enable the PCS (Pre-Crash Safety system), enable both the VSC system and PCS (Pre-Crash Safety system). ( P. 281, 327)
Slip indicator
Indicates a malfunction in: • The VSC system;• The TRC system; or
• The hill-start assist control system  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
The light will flash when the VSC, TRC or ABS system is operating.
Warning lightWarning light/Details/Actions

4637-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
*: Driver’s and front passenger’s seat belt buzzer:
The driver’s and front passenger’s seat belt buzzer sounds to alert the driver and front passenger that his or her seat belt is not fastened. The buzzer sounds intermittently 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 a different tone for 90 more seconds.
■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 passen-
ger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn- ing light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp
will go off after several trips.
If the malfunction indicator la mp does not go off, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer as soon as possible.
■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 system warning light may come on and the warning buzzer
may sound.
(If equipped)
Tire pressure warning light When the light comes on:Low tire inflation pressure such as
• Natural causes ( P. 464) • Flat tire ( P. 498, 509)  Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does not turn off even if the tire inflation pressure is adjusted, have thesystem checked by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. When the light comes on after blinking for 1 minute:Malfunction in the tire pressure warning system
 Have the system checked by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
(If equipped)
LKA warning lightThe warning light comes on and a warning message is displayed to
indicate that the LKA (Lane-Keepin g Assist) system is not available temporarily or has detected a malfunction. P. 478
Warning lightWarning light/Details/Actions

4697-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the Lexus parking assist All assist-sensors flash.
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates that Lexus parking a ssist-sensor is dirty or cov- ered with ice
A buzzer also sounds.  Clean the sensor.
Indicates an attempt was made to release the parking
brake with a door open or the front passenger’s seat belt unfastenedA buzzer also sounds.
 Close all doors and fasten the front passenger’s seat belt before releasing the parking brake.
Warning messageDetails/Actions
(Flashes)

4767-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates that the radar sensor is dirty or covered with iceA buzzer also sounds.
 Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system cannot be used temporarily due to bad weatherA buzzer also sounds.
 Use the radar cruise control system when it becomes available again.
(If equipped)
Indicates that the radar cruise control system brake con-trol function is temporarily unavailable Depress the brake.
(If equipped)
Indicates that the grille shutter system cannot operate or the grille shutter is dirty or covered with ice
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions

4777-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
(Vehicles with entry function)
Indicates a malfunction in the smart entry & start system A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliablerepairer.
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.  Clean the sensor and its surrounding area on the bumper.
Indicates a malfunction in the cruise control system ordynamic radar cruise control system (if equipped)Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate the system.A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates a malfunction in th e dynamic radar cruise con- trol with full-speed range
Depress the brake pedal. A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Warning messageDetails/Actions
(Flashes)

4787-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the LKA (Lane-Keeping Assist) system
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
The operation conditions of the camera sensor (tem- perature, etc.) are not met.
 When the operation conditions of the camera sen- sor (temperature, etc.) are met, the following sys-tems will become available.
• PCS (Pre-Crash Safety system) • LKA (Lane-Keeping Assist) system• RSA (Road Sign Assist)
• Dynamic radar cruise control with full-speed range • Dynamic radar cruise control• AHS (Adaptive High-beam System)
• Automatic High Beam
(If equipped)
Indicates that the system is temporarily unavailable due
to a malfunction in a sensor other than the camera sen- sorA buzzer also sounds.
 Turn the LKA (Lane-Keeping Assist) system off, wait for a little while, and then turn the LKA (Lane-Keep-ing Assist) system back on.
(If equipped)
Dirt, rain, condensation, ice, snow, etc., are present onthe windshield in front of the camera sensor.
The following systems will be temporarily unusable. • PCS (Pre-Crash Safety system)• LKA (Lane-Keeping Assist) system
• RSA (Road Sign Assist) • Dynamic radar cruise control with full-speed range• Dynamic radar cruise control
• AHS (Adaptive High-beam System) • Automatic High Beam Turn the system off, remove any dirt, rain, condensa-
tion, ice, snow, etc., from the windshield, and then turn the system back on.
Warning messageDetails/Actions
(Flashes)
(Flashes)