Page 765 of 862
764
GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
If the shift lever cannot be shifted from P
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent tool.
To prevent damage to the cover, cover
the tip of the screwdriver with a rag.
Press the shift lock override but-
ton.
The shift lever can be shifted while the
button is pressed.
If the shift lever cannot be shifted with your foot on the brake pedal,
there may be a problem with the shift lock system (a system to prevent
accidental operation of the shift lever). Have the vehicle inspected by
your Lexus dealer immediately.
The following steps may be used as an emergency measure to ensure
that the shift lever can be shifted:
1
2
3
4
5
GS450h_U.book Page 764 Monday, January 23, 2012 10:20 AM
Page 766 of 862

765
GS450h_U (OM30D01U)
7
When trouble arises
7-2. Steps to take in an emergency
If the parking brake cannot be released
●Shift the shift lever to P.
●Turn the power switch off.
●Check that the parking brake indicator is off.
●Chock the tires.
Take out the parking brake
release tool and the screwdriver
from the trunk. (→ P. 7 5 0 )
Fit the parking brake release tool into
the screwdriver handle.
Take out the spare tire. ( →P. 74 9 )
In the event that the 12-volt battery is discharged or switch operation
does not release the parking brake, the parking brake can be released
manually using the procedure below. This procedure should be per-
formed only if necessary, su ch as in an emergency.
If the switch cannot be operated even when the 12-volt battery is nor-
mal, the parking brake system may be malfunctioning. Have the vehicle
inspected by your Lexu s dealer immediately.
Before releasing the parking brake manually
Releasing the parking brake manually
1
2
GS450h_U.book Page 765 Monday, January 23, 2012 10:20 AM
Page 767 of 862
7667-2. Steps to take in an emergency
GS450h_U (OM30D01U)Remove the plug.
Insert the tool and press it down
firmly while turning it counter-
clockwise until it stops.
■Manual operation of the parking brake
The parking brake cannot be set manually.
3
4
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.
GS450h_U.book Page 766 Monday, January 23, 2012 10:20 AM
Page 769 of 862
7687-2. Steps to take in an emergency
GS450h_U (OM30D01U)
■Tr u n k
Turn the mechanical key clock-
wise 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 access system with
push-button start 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 your
Lexus dealer.
Starting the hybrid system
1
2
3
4
GS450h_U.book Page 768 Monday, January 23, 2012 10:20 AM
Page 770 of 862

7697-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stop-
ping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. (→P. 668)
■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. 1 9 0 )
■When the electronic key does not work properly
●Make sure that the smart access system with push-button start has not been deac-
tivated in the customization setting. If it is off, turn the function on.
(Customizable features →P. 807)
●Check if battery-saving mode is set. If it is set, cancel the function. ( →P. 1 2 7 )
3
GS450h_U.book Page 769 Monday, January 23, 2012 10:20 AM
Page 779 of 862
778
GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
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 TRAC.
1
2
3
4
5
GS450h_U.book Page 778 Monday, January 23, 2012 10:20 AM
Page 790 of 862

GS450h_U (OM30D01U)
7898-1. Specifications
8
Vehicle specifications
Your Lexus vehicle is filled with “Toyota Genuine Differential Oil” at the factory.
Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*: Minimum pedal clearance when depressed with a force of 112.4 lbf (500 N,51.0 kgf) 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. 711).
Differential
Oil capacity1.43 qt. (1.35 L, 1.19 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pe d a l c l e a r a n c e*4.5 in. (115 mm) Min.
Pe d a l f r e e p l a y0.04 — 0.08 in. (1.0 — 2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
Steering
Free playLess than 1.2 in. (30 mm)
GS450h_U.book Page 789 Monday, January 23, 2012 10:20 AM
Page 803 of 862

802
GS450h_U (OM30D01U)
8-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid transmission,
power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
GS450h_U.book Page 802 Monday, January 23, 2012 10:20 AM