LEXUS GS300H 2019 Owners Manual

4717-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates that the hybrid battery (traction battery) power has dropped because a long period of time has elapsedafter shifting the shift lever to N
A buzzer also sounds.  Restart the hybrid system when starting the vehicle.
Indicates a malfunction in the hybrid system Depending on the malfunctio n, troubleshooting meth-
ods may also be displayed. A buzzer also sounds. Immediately stop the vehicle in a safe place and
contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Indicates that the traction battery is low
A buzzer also sounds.  When stopping the vehicle for a long period of time, shift the shift lever to P. The battery cannot be
charged with the shift lever in N.
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Warning messageDetails/Actions
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4727-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
Indicates that the vehicle is being driven at 5 km/h
(3 mph) or more with the parking brake still engaged. A buzzer also sounds. Release the parking brake.
Indicates that the parking brake is engaged with the shift position not in PA buzzer also sounds.
 Change the shift position to P.
Indicates a malfunction in the brake hold system A buzzer also sounds. Depress the brake pedal to turn off the brake hold
system. Have the vehicle inspected by any authorized Lexusretailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that the brake hold system is turned on while on
a steep slope A buzzer also sounds. Do not use only the brake hold system on steep
slopes. Be sure to also depress the brake pedal.
Indicates a malfunction in the parking brake system
A buzzer also sounds.  Press the parking brake switch. If the warning mes- sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Warning messageDetails/Actions
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4737-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates an attempt was made to release the parking brake without depressing the brake pedalA buzzer also sounds.
 Release the parking brake while depressing the brake pedal.
Indicates that the shift position was changed and Drive-Start Control was operated while depressing the accel-erator pedal
A buzzer also sounds.  Momentarily release the accelerator pedal.
Indicates an attempt was made to shift to 1st gear with the shift position in S while on a slippery surface The vehicle will not shift down from 2nd gear.
A buzzer also sounds.  Drive the vehicle in 2nd gear or higher.
(If equipped)
Indicates that the LKA (Lane-Keeping Assist) system has determined that the driver does not have their hands onthe steering wheel while the steering control function is
on  Firmly hold the steering wheel.
Warning messageDetails/Actions
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4747-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates that steering control function is temporarily canceled due to the LKA (L ane-Keeping Assist) system determining that the driver does not have their hands on
the steering wheel while the steering control function is onA buzzer also sounds.
 Firmly hold the steering wheel.
Indicates that the parking brake system is overheating A buzzer also sounds.
 Do not use the parking brake until the message dis- appears.
Indicates an engine malfunction
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates an engine malfunction A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Warning messageDetails/Actions

4757-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates a malfunction in:
• The SRS airbag system; or • The seat belt pretensioner systemA buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliablerepairer.
Indicates a malfunction in:•The ABS; or• The brake assist system
A buzzer also sounds.  Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
Indicates that the engine coolant temperature is too high
A buzzer also sounds.  P. 535
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 messageDetails/Actions

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
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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
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4797-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the PCS (Pre-Crash Safety 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 the BSM (Blind Spot Monitor) systemA buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliablerepairer.
Indicates abnormal engine oil pressure
A buzzer also sounds.  Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
(If equipped)
Indicates a malfunction in the VGRS (Variable Gear Ratio Steering)
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
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4807-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates a malfunction in the DRS (Dynamic Rear
Steering) A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Indicates a malfunction in the electronically controlledbrake system
A buzzer also sounds.  Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. Con- tinuing to drive in this condition is dangerous.
Indicates an attempt was made to engage the parkingbrake while driving
A buzzer also sounds.  Press the parking brake switch. If the warning mes- sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Indicates a malfunction in the parking brake system
A buzzer also sounds.  Press the parking brake switch. If the warning mes- sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
(If equipped)
Indicates that LKA (Lane-Keeping Assist) system cannotbe used due to the vehicle speed being too high Slow down.
Warning messageDetails/Actions