Page 935 of 1014
9087-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Take out the parking brake
release tool and the screw-
driver from the trunk. (P.
872, 886)
Fit the parking brake release tool
into the screwdriver handle.
Vehicles with a spare tire: Take out the spare tire. (P. 875)
Vehicles without a spare tire: Remove the center auxiliary box.
(P. 888)
Remove the plug.
Insert the tool and press it
down firmly while turning it
counterclockwise until it
stops.
Releasing the parking brake manually
1
2
3
4
Page 936 of 1014
9097-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Manual operation of the parking brake
The parking brake cannot be set manually.
CAUTION
When releasing the parking brake manually
Shift the shift lever to P, turn the power switch off and chock the tires.
Failure to do so may cause the vehicle to move, resulting in an accident.
Turn the power switch off and check that the parking brake indicator is
off. Failure to do so may cause the system to operate and turn the inserted
parking brake release tool, resulting in an injury.
Page 938 of 1014
911
7 7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Trunk
Turn the mechanical key
clockwise to open.
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side
of the electronic key to the
power switch.
The power switch will turn to ON
mode.
When the smart entry & start sys-
tem is deactivated in customization
setting, the power switch will turn
to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on
the multi-information display.
Press the power switch.
In the event that the hybrid system still cannot be started, contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Starting the hybrid system
1
2
3
4
Page 939 of 1014

9127-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when
stopping the hybrid system.
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 779)
Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered.
Changing power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the
switch is pressed.(P. 247)
When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: P. 942)
Check if battery-saving mode is set. If it is set, cancel the function. (P.
149)
3
Page 953 of 1014
9267-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(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 material under the rear wheels
to help provide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake.
Then, while exercising 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. 400)
1
2
3
4
5
Page 957 of 1014
9268-1. Specifications
GS450h_300h_OM_OM30D53E_(EE)
Maintenance data (fuel, oil level, etc.)
*1: Unladen vehicle
*2: Vehicles with 265/35R19 tires
*3: AWL10L-BEXEHW and AWL10R-BEXEHW models
*4: AWL10L-BEXQHW and AWL10R-BEXQHW models
*5: GWL10L-BEXEBW and GWL10R-BEXEBW models
*6: GWL10L-BEXQBW and GWL10R-BEXQBW models
*7: Vehicles with towing package
*8:GS300h
*9:GS450h
Dimensions and weights
Overall length 4850 mm (190.9 in.)
Overall width 1840 mm (72.4 in.)
Overall height*11455 mm (57.3 in.)
Wheelbase 2850 mm (112.2 in.)
Tread*1
Front 1575 mm (62.0 in.)
Rear1590 mm (62.6 in.)
1560 mm (61.4 in.)*2
Gross vehicle mass2235 kg (4927 lb.)
*3
2265 kg (4993 lb.)*4
2305 kg (5082 lb.)*5
2335 kg (5148 lb.)*6
Maximum
permissible axle
capacityFront 1120 kg (2469 lb.)
Rear 1270 kg (2800 lb.)
Drawbar load*780 kg (176 lb.)
To w i n g c a p a c -
ity
*7
With brake500 kg (1102 lb.)*8
1500 kg (3307 lb.)*9
Without brake0 kg (0 lb.)*8
750 kg (1653 lb.)*9
Page 966 of 1014

935
8 8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30D53E_(EE)Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at
the factory.
Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equiva-
lent of matching quality to satisfy the above specification. Please contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional 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.
830).
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 — 2.0 mm (0.04 — 0.08 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 985 of 1014

953
8 8-2. Customization
Vehicle specifications
GS450h_300h_OM_OM30D53E_(EE)
Vehicle customization
When the entry function is off, the selecting doors to unlock cannot be cus-
tomized.
When the doors remain closed after unlocking the doors and the automatic
door lock function (time elapsed before the automatic door lock function is
activated if a door is not opened after being unlocked) activates, the signals
will be generated in accordance with the operation signal (buzzers) and the
operation signal (emergency flashers) settings.
When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift
lever to P. Also, to prevent 12-volt battery discharge, leave the hybrid system
operating while customizing the features.
CAUTION
During customization
As the hybrid system needs to be operating during customization, ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
During customization
To prevent 12-volt battery discharge, ensure that the hybrid system is oper-
ating while customizing features.