Page 381 of 652
GS450h_OM_OM30E26U_(U)
3815-5. Other interior features
5
Interior features
CAUTION
■Burns
Care should be taken to prevent injury if anyone in the following categories comes
in contact with the steering wheel when the heated steering wheel is on:
●Babies, small children, the elderly, the sick and the physically challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
NOTICE
■To prevent the 12-volt battery from being discharged
Turn the switch off when the hybrid system is off. 
         
        
        
     
        
        Page 385 of 652
GS450h_OM_OM30E26U_(U)
3855-5. Other interior features
5
Interior features
NOTICE
■To prevent damage to the seat heaters/seat ventilators
Do not put heavy objects that have an uneven surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
■To prevent 12-volt battery discharge
Turn the seat heaters/seat ventilator s off when the hybrid system is off. 
         
        
        
     
        
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GS450h_OM_OM30E26U_(U)
3895-5. Other interior features
5
Interior features
■Button lock function (vehicles with rear control panel)
To prevent inadvertent operation, some buttons on the rear armrest can be locked. 
(  P.  3 5 9 )
■Rear control panel illumination off function (vehicles with rear control panel)
Control panel illumination on the rear armrest can be turned off. ( P.  3 5 9 )
■Customization
Time elapsed before the reverse operation feature activates can be changed.
(Customizable features:  P.  5 9 9 )
CAUTION
■When the rear sunshade is being operated
Do not place fingers or other objects in the fastener section or in the opening.
They may get caught, causing injury.
NOTICE
■To prevent 12-volt battery discharge
Do not operate the rear sunshade when the hybrid system is off.
■To ensure normal operation of the rear sunshade and rear door sunshades
Observe the following precautions.
●Do not place excessive load on the moto r or other components of the rear sun-
shade.
●Do not place objects where they may hinder opening and closing operations.
●Do not attach items to the rear sunshade and rear door sunshades.
●Keep the opening clean and clear of obstructions.
●Do not operate the rear sunshade cont inuously for long periods of time. 
         
        
        
     
        
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398
GS450h_OM_OM30E26U_(U)
5-5. Other interior features
■Before programming
●Install a new battery in the remote control transmitter.
●The battery side of the remote control transmitter must be pointed away from the
HomeLink
® button.
■Certification for the garage door opener
For vehicles sold in the U.S.A.
FCC ID: NZLOBIHL4
NOTE:
This device complies with Part 15 of the  FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference  received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly ap proved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: 
(1) this device may not  cause interference, and 
(2) this device must accept any interference, including interference that may cause
undesired operation.
■When support is necessary
Visit on the web at www.homelink.com
 or call 1-800-355-3515. 
         
        
        
     
        
        Page 407 of 652

407
GS450h_OM_OM30E26U_(U)
6Maintenance and care
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 408
Cleaning and protecting  the vehicle interior ................... 412
6-2. Maintenance Maintenance requirements .... 415
General maintenance ............... 418
Emission inspection and maintenance (I/M) 
programs .................................... 422 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ................................ 423
Hood ............................................... 426
Positioning a floor jack ..............427
Engine compartment ............... 429
12-volt battery.............................. 439
Tires .................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery ..............460
Checking and replacing  fuses .............................................. 462
Headlight aim ...............................477
Light bulbs..................................... 479 
         
        
        
     
        
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GS450h_OM_OM30E26U_(U)
4096-1. Maintenance and care
6
Maintenance and care
■High-pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the win-
dows. 
●Before using the car wash, check that the fuel filler door on your vehicle is closed
properly.
■Notes for a smart access system with push-button start
If the door handle becomes wet while the electronic key is within the effective range,
the door may lock and unlock repeatedly. In that case, follow the following correc-
tion procedures to wash the vehicle:
●Place the key in a position 6 ft. (2 m) or more separate from the vehicle while the
vehicle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart access system
with push-button start. ( P.  1 2 9 )
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard
brushes or abrasive cleaners. Do not use strong or harsh chemical cleaners. 
Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for
long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers 
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating (if equipped)
●The following precautions can extend the effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
• Do not use wax or glass cleaners that  contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance ha s become insufficient, the coating can
be repaired. Contact your Lexus dealer. 
         
        
        
     
        
        Page 411 of 652

GS450h_OM_OM30E26U_(U)
4116-1. Maintenance and care
6
Maintenance and care
NOTICE
■To prevent paint deterioration and corrosion on the body and components (alu-
minum wheels etc.)
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paintsurface
• After driving in an area contaminated  with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with
low humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush. 
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash 
Turn off AUTO mode of the wiper to  prevent the wiper from operating. (P.  2 2 3 )
If AUTO mode is selected, the wipers  may operate and the wiper blades may be
damaged.
■When using a high-pressure car wash
●When washing the vehicle, do not let water from the high-pressure washer
directly hit the camera or the area around the camera. Due to the shock from
high-pressure water, it is possible that the device may not operate normally.
●Do not bring the nozzle tip close to boots (rubber or resin manufactured cover),
connectors or the following parts. The parts may be damaged if they come into
contact with high-pressure water.
• Traction battery related parts
• Steering parts
• Suspension parts
•Brake parts 
         
        
        
     
        
        Page 413 of 652

GS450h_OM_OM30E26U_(U)
4136-1. Maintenance and care
6
Maintenance and care
■Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year to main-
tain the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge or
brush to apply the foam. Rub in overlapping circles. Do not use water. Wipe dirty sur-
faces and let them dry. Excellent results are obtained by keeping the carpet as dry as
possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also check the
belts periodically for excessive wear, fraying or cuts.
■When cleaning the carpeted portions of the glove box, console box, etc.
If a strong adhesive tape is used, there is a possibility that the surface of the carpet
could be damaged.
CAUTION
■Water in the vehicle
●Do not splash or spill liquid in the vehicl e, such as on the floor, in the hybrid bat-
tery (traction battery) air vents, and in the trunk.
Doing so may cause the hybrid battery, electrical components, etc. to malfunc-
tion or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet. 
(  P.  4 0 )
An electrical malfunction may cause the ai rbags to deploy or not function prop-
erly, resulting in death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect off the
windshield, obstructing the driver’s view  and leading to an accident, resulting in
death or serious injury.