Page 542 of 600

5427-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
If the vehicle becomes stuck
Stop the hybrid system. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other materi al under the rear wheels to help pro-
vide traction.
Restart the hybrid system.
Shift the shift lever to D or R and rele ase the parking brake. Then, while exer-
cising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt or snow:
Press to turn off TRC. ( P. 326)
WARNING
■When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the surrounding
area is clear to avoid striking other vehi cles, objects or people. The vehicle may also
lunge forward or lunge back suddenly as it becomes free. Use extreme caution.
■When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an acci-
dent resulting in death or serious injury.
1
2
3
4
5
Page 554 of 600

5548-1. Specifications
GS450h_300h_OM_OM30F92E_(EE) Your Lexus vehicle is filled with “Toyota Ge
nuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differentia l Gear Oil” or an equivalent of match-
ing quality to satisfy the above specification. Please contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer for further details.
* : Minimum pedal clearance when depressed with a force of 500 N (51.0 kgf, 112.4 lbf)
while the hybrid system is operating.
When performing the brake pedal inspection , also be sure to check that the brake
system warning light is not illuminated when the hybrid system is operating (If the
brake system warning light is illuminated, refer to P. 460).
Differential
Oil capacity1.35 L (1.43 qt., 1.19 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pedal clearance *115 mm (4.5 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3,
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)
Page 562 of 600

5628-2. Customization
GS450h_300h_OM_OM30F92E_(EE) Some function settings are changed simu
ltaneously with other functions being
customized. Contact any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer.
Settings that can be changed using the Remote Touch
Settings that can be changed using the meter control switches
Settings that can be changed by any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer
Definition of symbols: O = Available, — = Not available
■Meters and multi-information display ( P. 111)
Customizable features
1
2
3
FunctionDefault
settingCustomized setting
Speed warning Off On — O —
Speed warning setting 30 km/h
(20 mph) 30 to 260 km/h
(20 to 160 mph) —O—
Language
*1English
French
—O—
German
Spanish
Italian
Russian
Units
*1km (L/100 km)km (km/L)OO—miles (MPG)
EV indicator On Off — O —
switch settingsDrive
information 1Desired status screen *2—O—
Drive information screen dis-
played on the first screen of
(Drive information 1)
Current fuel
consumption
* 3—O—Average fuel
economy
(after reset)
Drive information screen dis-
played on the second screen of
(Drive information 2)Distance (range)
*3—O—Average speed
(after reset)
123
Page 564 of 600
5648-2. Customization
GS450h_300h_OM_OM30F92E_(EE)
■LKA (Lane-Keeping Assist) * ( P. 282)
* : If equipped
■PCS (Pre-Crash Safety system) * ( P. 270)
* : If equipped
FunctionDefault settingCustomized
setting
Lane centering functionOffOn—O—
Steering assistOnOff—O—
Adjust alert type(Steering
vibration)(Buzzer)
—O—
Alert sensitivityStandardHigh—O—
Vehicle sway warningOnOff—O—
Vehicle sway warning sensitivityStandardLow—O—High
123
FunctionDefault settingCustomized setting
PCS (Pre-Crash Safety system)OnOff—O—
Adjust alert timing
(Middle)
(Far)—O—
(Near)
123
Page 565 of 600
565
8
8-2. Customization
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
■BSM (Blind Spot Monitor)* ( P. 314)
* : If equipped
■AFS (Adaptive Front-lighting System) * ( P. 239)
* : If equipped
■RSA (Road Sign Assist) *1
( P. 291)
* 1
: If equipped
* 2
: If a speed limit with supplemental mark is exceeded, the warning buzzer does not
operate.
* 3
: No-overtaking notification only
FunctionDefault settingCustomized
setting
BSM (Blind Spot Monitor)OnOff—O—
123
FunctionDefault settingCustomized setting
AFS (Adaptive Front-lighting
System)OnOff—O—
123
FunctionDefault settingCustomized
setting
RSA (Road Sign Assist)OnOff—O—
Excess speed notification
methodOnly visual
No Notification
—O—Visual and
audible *2
Excess speed notification level3 km/h (1 mph)5 km/h (3 mph)—O—10 km/h (5 mph)
Other notifications method
*3Only visual
No Notification
—O—Visual and
audible *2
123
Page 580 of 600

580What to do if... (Troubleshooting)
GS450h_300h_OM_OM30F92E_(EE) ●
Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 193)
● The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
( P. 219)
● The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 462)
● The parking brake indicator is on
Is the parking brake released? ( P. 232)
Depending on the situation, other type s of warning buzzer may also sound.
( P. 460, 466)
● Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. ( P. 91)
To stop the alarm, turn the power switch to ON mode or start the hybrid system. ● Is the electronic key left inside the vehicle or the moon roof opened (if
equipped)?
Check the message on the multi-information display. ( P. 466)
The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th
e horn sounds (if equipped)
A warning buzzer sounds when leaving the vehicle
(vehicles with entry function)
Page 581 of 600
581
What to do if... (Troubleshooting)
GS450h_300h_OM_OM30F92E_(EE) ●
When a warning light turns on or a warning message is displayed, refer to
P. 460, 466.
● Vehicles with spare tire
Stop the vehicle in a safe place and replace the flat tire with the spare tire. ( P. 498)
● Vehicles without spare tire
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. ( P. 509)
● Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow. ( P. 542)
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 582 of 600

582Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Alphabetical index
A/C ............................................................ 346
Air conditioning filter........................ 433
Changing the rear seat settings.................................................353
Front automatic air
conditioning system ...................... 346
nanoe™ system ..................................356
Pollen removal mode ...................... 352
Rear air conditioning system ...... 358
S-FLOW mode.................................. 347
ABS (Anti-lock Brake System) ....... 324
Function .................................................. 324
Warning light .........................................461
Warning message.............................466
Adaptive Front-lighting System
(AFS) ..................................................... 239
Adaptive Variable Suspension
system (AVS) ...................................... 325
AFS (Adaptive Front-lighting
System) .................................................. 239
AHS (Adaptive High-beam
System) ................................................... 241
Air conditioning filter .......................... 433
Air conditioning system ..................... 346 Air conditioning filter........................ 433
Changing the rear seat settings.................................................353
Front automatic air conditioning system ...................... 346
nanoe™ system ..................................356
Pollen removal mode ...................... 352
Rear air conditioning system ...... 358
S-FLOW mode.................................. 347 Airbags ........................................................ 43
Airbag manual on-off system......... 54
Airbag operating conditions ...........49
Airbag precautions for
your child .............................................. 45
Airbag warning light ........................ 460
Correct driving posture.................... 36
Curtain shield airbag operating
conditions ..............................................49
Curtain shield airbag
precautions ........................................... 47
General airbag precautions ........... 45
Locations of airbags ............................43
Modification and disposal of
airbags.................................................... 48
Side airbag operating
conditions ..............................................49
Side airbag precautions .................... 45
Side and curtain shield airbags operating conditions ........................49
Side and curtain shield airbags precautions .......................................... 45
SRS airbags ..............................................43
Airbag manual on-off system ............. 54
Alarm .............................................................. 91 Alarm ............................................................ 91
Warning buzzer.....................460, 466
Anchor brackets ...................................... 66
Antennas (smart entry & start system) .........................................153
Anti-lock Brake System (ABS)....... 324 Function...................................................324
Warning light......................................... 461
Warning message ............................ 466
A