
TABLE OF CONTENTS2
GS450h_300h_OM_OM30F92E_(EE)
For your information ...................................8 
Reading this manual .................................. 12
How to search ............................................. 13
Pictorial index .............................................. 14 
1-1. For safe use 
Before driving ................................. 34 
For safety drive............................... 36
Seat belts ..........................................38
SRS airbags ..................................... 43
Airbag manual on-off  
system ............................................. 54 
Safety information  
for children....................................56 
Child restraint systems ............... 57
Installing child restraints ............. 66
Exhaust gas precautions ............ 75 
1-2. Hybrid system 
Hybrid system features............... 76
Hybrid system precautions ...... 80 
1-3. Theft deterrent system 
Immobilizer system ..................... 85
Double locking system ...............90
Alarm .................................................. 91 
2. Instrument cluster 
Warning lights  
and indicators ..............................98 
Gauges and meters ................... 104
Multi-information display............ 111
Head-up display ............................119
Energy monitor/ 
consumption screen ............... 126 
3-1. Key information 
Keys .................................................. 134 
3-2. Opening, closing and locking  
the doors and trunk 
Doors ............................................... 139
Trunk ................................................ 146
Smart entry & start system ...... 153 
3-3. Adjusting the seats 
Front seats...................................... 175
Driving position memory ......... 178
Head restraints............................. 183 
3-4. Adjusting the steering  
wheel and mirrors 
Steering wheel ............................. 186
Inside rear view mirror..............188 
Outside rear view mirrors ....... 190
1For safety and security
2Instrument cluster
3Operation of  
each component 

33
1For safety and security
GS450h_300h_OM_OM30F92E_(EE)
1-1. For safe use 
Before driving................................. 34
For safety drive .............................. 36
Seat belts .......................................... 38
SRS airbags ..................................... 43
Airbag manual on-off  
system ............................................. 54 
Safety information  
for children ................................... 56 
Child restraint systems ............... 57
Installing child restraints............. 66
Exhaust gas precautions ............ 75 
1-2. Hybrid system 
Hybrid system features .............. 76
Hybrid system precautions.......80 
1-3. Theft deterrent system 
Immobilizer system ......................85
Double locking system ............... 90
Alarm ...................................................91 

441-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
The main SRS airbag system components are shown above. The SRS airbag sys- 
tem is controlled by the airbag sensor assembly. As the airbags deploy, a chemi- 
cal reaction in the inflators quickly fills the airbags with non-toxic gas to help 
restrain the motion of the occupants.
SRS airbag system components
Knee airbags 
Airbag manual on-off switch 
Front passenger airbag 
Curtain shield airbags 
“PASSENGER AIR BAG” indica- 
tor lights 
Seat belt pretensioners and force 
limiters 
Side impact sensors (front) 
Front side airbags 
SRS warning light 
Driver airbag 
Rear side airbags 
Side impact sensors (rear) 
Driver’s seat position sensor 
Driver’s seat belt buckle switch 
Airbag sensor assembly 
Front impact sensors
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 

481-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■SRS airbag precautions
●Do not strike or apply significant levels of force to the area of the SRS airbag compo- nents.  
Doing so can cause the SRS airbags to malfunction.
●Do not touch any of the component parts immediately after the SRS airbags have deployed (inflated) as they may be hot.
●If breathing becomes difficult after the SRS airbags have deployed, open a door orwindow to allow fresh air in, or leave the vehicle if it is safe to do so. Wash off any resi-due as soon as possible to prevent skin irritation. 
●If the areas where the SRS airbags are stored, such as the steering wheel pad, door ofthe glove box and front and rear pillar garnishes are damaged or cracked, have themreplaced by any authorized Lexus retailer or  Lexus authorized repairer, or any reli- 
able repairer.
■Modification and disposal of SRS airbag system components 
Do not dispose of your vehicle or perform  any of the following modifications without 
consulting any authorized Lexus retailer or  Lexus authorized repairer, or any reliable repairer. The SRS airbags may malfunction or deploy (inflate) accidentally, causingdeath or serious injury.
●Installation, removal, disassembly and repair of the SRS airbags
●Repairs, modifications, removal or repl acement of the steering wheel, instrument panel, dashboard, glove box, seats or seat  upholstery, front, side and rear pillars or 
roof side rails
●Repairs or modifications of the front fender, front bumper, or side of the occupant compartment
●Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows or winches
●Modifications to the vehicle’s suspension system
●Installation of electronic devices such as  mobile two-way radios (RF-transmitter) and 
CD players
●Modifications to your vehicle for a person with a physical disability 

541-1. For safe use
GS450h_300h_OM_OM30F92E_(EE)
Airbag manual on-off system
“PASSENGER AIR BAG” indicator
This indicator light turns on when the 
airbag system is on (only when the power switch is in ON mode).
Airbag manual on-off switch
This system deactivates the front passenger airbag, front passenger knee air- 
bag and front passenger side airbag. 
Only deactivate the airbags when using  a child restraint system on the front 
passenger seat.
1
2 

551-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F92E_(EE)
Insert the mechanical key into the cylin- 
der and rotate to the “OFF” position.
The “OFF” indicator light turns on (only 
when the power switch is in ON mode).
■“PASSENGER AIR BAG” indicator information 
If any of the following problems occur, it is  possible that there is a malfunction in the sys- tem. Have the vehicle inspected by any au thorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●Neither “ON” nor “OFF” comes on.
●The indicator light does not change when the airbag manual on-off switch is switchedto “ON” or “OFF”.
Deactivating the front seat passenge r airbag, front passenger knee air- 
bag and front passenger side airbag
WARNING
■When installing a child restraint system 
For safety reasons, always install a child rest raint system in a rear seat. In the event that 
the rear seat cannot be used, the front seat can be used as long as the airbag manual on-off system is set to off.If the airbag manual on-off system is left on, the strong impact of the airbag deployment 
(inflation) may cause serious injury or even death.
■When a child restraint system is not  installed on the front passenger seat 
Ensure that the airbag manual  on-off system is set to on. 
If it is left off, the airbag may not deploy in the event of an accident, which may result in serious injury or even death. 

591-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F92E_(EE)
Information provided in the table shows your child restraint system suitability for 
various seating positions.
Child restraint system suitabilit y for various seating positions
Front passenger seat
Rear seatAirbag manual  
on-off switch
ONOFFOutboardCenter 
0 Up to 10 kg (22 lb.)(0 - 9 months) XU*1U, L X 
0+ 
Up to 13 kg (28 lb.) (0 - 2 years) XU*1U, L X 
I 
9 to 18 kg  (20 to 39 lb.)(9 months - 4 years) 
Rear- facing — X U*1U*2XForward- 
facing — UF*1
II, III 15 to 36 kg (34 to 79 lb.) 
(4 - 12 years) 
UF*1U*1U*2X
Mass groups 
Seating position 

651-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■Child restraint precautions
●For effective protection in automobile accidents and sudden stops, a child must be properly restrained, using a seat belt or  child restraint system depending on the age 
and size of the child. Holding a child in your  arms is not a substitute for a child restraint system. In an accident, the child can be crushed against the windshield, or betweenyou and the vehicle’s interior.
●Lexus strongly urges the use of a proper child restraint system that conforms to thesize of the child, installed on  the rear seat. According to accident statistics, the child is safer when properly restrained in the rear seat than in the front seat.
●Never use a rear-facing child restraint syst em on the front passenger seat when the airbag manual on-off switch is on. ( P. 54) In the event of an accident, the force of the rapid inflation of the front passenger air- 
bag can cause death or serious injury to the child.
●A forward-facing child restraint system ma y be installed on the front passenger seat only when it is unavoidable. A child restra int system that requires a top strap should 
not be used in the front passenger seat sinc e there is no top strap anchor for the front passenger seat. Adjust the seatback as up right as possible and always move the seat as far back as possible because the front passenger airbag could inflate with consid- 
erable speed and force. Otherwise, the ch ild may be killed or seriously injured.
●Do not allow the child to lean his/her head or any part of his/her body against the door or the area of the seat,  front and rear pillars or roof side rails from which the SRS 
side airbags or SRS curtain shield airbags depl oy even if the child is seated in the child restraint system. It is dangerous if the SR S side airbags and curtain shield airbags inflate, and the impact could cause death or serious injury to the child.
●Make sure you have complied with all instal lation instructions provided by the child restraint manufacturer and that the system is properly secured. If it is not securedproperly, it may cause death or serious inju ry to the child in the event of a sudden 
stop, sudden swerve or accident.
■When children are in the vehicle 
Do not allow children to play with the seat  belt. If the seat belt becomes twisted around 
a child’s neck, it may lead to choking or othe r serious injuries that could result in death. If this occurs and the buckle cannot be unfa stened, scissors should be used to cut the belt.
■When the child restraint system is not in use
●Keep the child restraint system properly secure d on the seat even if it is not in use. Do not store the child restraint system un secured in the passenger compartment.
●If it is necessary to detach the child restraint system, remove it from the vehicle or store it securely in the trunk. If a head  restraint was removed when installing a child restraint system, always install the head restraint before driving. This will prevent it 
from injuring passengers in the event of  a sudden stop, sudden swerve or accident.