
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 

1553-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F92E_(EE)
■Electronic Key Battery-Saving Function 
When battery-saving mode is set, battery de pletion is minimized by stopping the elec- tronic key from receiving radio waves.
■Conditions affecting operation 
The smart entry & start system uses weak ra dio waves. In the following situations, the communication between the electronic key and the vehicle may be affected, preventingthe smart entry & start system, wireless re mote control and immobilizer system from 
operating properly. (Ways of coping:  P. 527)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, airport or 
other facility that gene rates strong radio waves or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic objects 
• Cards to which aluminum foil is attached • Cigarette boxes that have aluminum foil inside• Metallic wallets or bags 
•Coins • Hand warmers made of metal• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio 
waves 
• When carrying a portable radio, cellular  phone, cordless phone or other wireless communication device 
• Another vehicle’s electronic key or a wireless key that emits radio waves • Personal computers or personal digital assistants (PDAs)• Digital audio players 
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win- 
dow
●When the electronic key is placed near a battery charger or electronic devices 
Press   twice while pressing and holding 
. Confirm that the electronic key indica- 
tor flashes 4 times.  While the battery-saving mode is set, the smart 
entry & start system cannot be used. To cancel the function, press any of the electronic key but-tons. 

584Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Cargo hooks........................................... 374 
CD player*
Chains ....................................................... 336
Child restraint system ............................ 57 
Baby seats, definition ..........................58 
Baby seats, installation ....................... 67 
Child seats, definition..........................58 
Child seats, installation....................... 67 
Installing CRS with ISOFIX  
rigid anchors........................................ 70 
Installing CRS with seat belts.......... 67 
Installing CRS with top strap ............ 71 
Junior seats, definition ........................58 
Junior seats, installation ..................... 69 
Child safety................................................. 56 
12-volt battery  
precautions............................. 414, 534 
Airbag precautions .............................. 45 
Child restraint system......................... 57 
How your child should  
wear the seat belt ..................... 39, 40 
Installing child restraints .................... 66 
Moon roof precautions ................... 198 
Power window lock switch.............193 
Power window precautions .......... 195 
Rear door child-protectors ............143 
Removed electronic key  
battery precautions ....................... 436 
Seat belt comfort guide ..................... 39 
Seat belt precautions .......................... 42 
Seat heater precautions ...................361 
Trunk precautions  ..............................149 
Child-protectors ................................... 143 
Cleaning....................................... 390, 394 
Aluminum wheels................................ 391 
Exterior ................................................... 390 
Interior..................................................... 394 
Seat belts ............................................... 395 
Clock ............................................... 105, 378 
Coat hooks.............................................. 382 
Condenser ................................................ 411 
Console box ........................................... 370 
Console box light ................................... 371 
Coolant..................................................... 409 
Capacity................................................. 552 
Checking ............................................... 409 
Preparing and checking  
before winter.................................... 334 
Cooling system ..................................... 409 
Engine overheating .......................... 535 
Hybrid system overheating.......... 535 
Consumption screen  ........................... 126 
Cruise control 
Cruise control .....................................308 
Dynamic radar cruise control  
with full-speed range ................... 296 
Cup holders .............................................. 371 
Curtain shield airbags  .......................... 43 
Customizable features.........................561 

586Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Dynamic radar cruise control  
with full-speed range ....................... 296 
Function .................................................. 296 
Warning message.............................466 
Dynamic Rear Steering (DRS)........ 325 
Function .................................................. 325 
Warning message.............................466 
DVD player*
Eco drive mode ........................................ 311
Electric motor (traction motor) ......... 76 
Electric Power Steering (EPS)........ 325 
Function .................................................. 325 
Warning light .........................................461 
Warning message.............................466 
Electronic key.......................................... 134 
Battery-saving function.................... 155 
If the electronic key does not  
operate properly ............................ 527 
Replacing the battery.......................435 
Emergency, in case of 
If a warning buzzer sounds ......... 460 
If a warning light turns on.............. 460 
If a warning message is  
displayed ............................................466 
If the 12-volt battery is  
discharged........................................ 530 
If the electronic key does not  
operate properly ............................ 527 
If the hybrid system will not  
start ........................................................ 523 
If the parking brake cannot  
be released........................................525 
If you have a flat tire .............498, 509 
If you think something  
is wrong .............................................. 459 
If your vehicle becomes  
stuck ..................................................... 542 
If your vehicle has to be  
stopped in an emergency ......... 453 
If your vehicle needs to  
be towed ............................................ 454 
If your vehicle overheats................ 535 
Emergency brake signal.................... 325 
Emergency flashers............................. 452 
Emergency tire puncture  
repair kit ................................................ 509 
Energy monitor ....................................... 126 
Engine ....................................................... 548 
Accessory mode ................................. 218 
Compartment ..................................... 403 
Engine switch ........................................ 217 
Hood ......................................................... 401 
How to start the hybrid  
system.................................................... 217 
Identification number....................... 548 
Ignition switch  
(power switch) .................................. 217 
Overheating ........................................ 535 
Power switch ......................................... 217 
Engine compartment cover ............. 405 
Engine coolant....................................... 409 
Capacity................................................. 552 
Checking ............................................... 409 
Preparing and checking  
before winter.................................... 334
E