
17Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
Multi-information display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 111
Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .P. 111 
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 126 When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 466
Parking brake switches  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 232
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 23 2 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 335Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462, 472
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  231
Headlight switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 237 
Headlights/front position lights/tail lights/ daytime running lights  . . . . . . .P. 237 Front fog lights/rear fog light  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 250
Windshield wiper and washer switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 251
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . P. 251 Adding washer fluid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  411 Headlight cleaners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252, 254 
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 486
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452 
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  146 
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 401 
Tilt and telescopic steering control switch. . . . . . . . . . . . . . . . . . . . . . . . . .  P. 186
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . P. 186 
Driving position memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 346
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .  P. 346 
Rear window defogger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 352
Audio system*
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 148
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
4
5
6
7
8
9
10
11
12
13
14 

25Pictorial index 
GS450h_300h_OM_OM30F92E_(EE)
Multi-information display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 111
Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .P. 111 
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 126 When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 466
Parking brake switches  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 232
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 23 2 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 335Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462, 472
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  231
Headlight switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 237 
Headlights/front position lights/tail lights/ daytime running lights  . . . . . . .P. 237 Front fog lights/rear fog light  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 250
Windshield wiper and washer switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 251
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . P. 251 Adding washer fluid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P.  411 Headlight cleaners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252, 254 
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 486
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452 
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P.  146 
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 401 
Tilt and telescopic steering control switch. . . . . . . . . . . . . . . . . . . . . . . . . .  P. 186
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . P. 186 
Driving position memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 346
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .  P. 346 
Rear window defogger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 352
Audio system*
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  P. 148
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
4
5
6
7
8
9
10
11
12
13
14 

2554-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■The windshield wiper and washer can be operated when 
The power switch is in ON mode.
■Dripping prevention wiper sweep 
After washing and wiping operation several times, the wipers operate one more time 
after a short delay to prevent dripping. 
However, the last sweep will not happen while the vehicle is moving.
■Effects of vehicle speed on wiper operation
●Intermittent windshield wipers interval  changes when the vehicle is stopped.
●With low speed operation selected, wiper operation will be switched from low speed to intermittent operation only when the vehicle is stationary.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If AUTO mode is selected while the power sw itch is in ON mode, the wipers will oper- ate once to show that AUTO mode is activated.
●If the temperature of the raindrop sensor  is 85°C (185°F) or higher, or -30°C (-22°F) or lower, automatic operation may not occur. In this case, operate the wip-ers in any mode other than AUTO mode.
■When the windshield wipers are in temporary operation 
AUTO mode cannot be activated even if   is pressed.
■If no windshield washer fluid sprays 
Check that the washer nozzles are not blocked  if there is washer fluid in the windshield washer fluid reservoir.
●The raindrop sensor judges the amount of 
raindrops. 
An optical sensor is adopted. It may not oper- ate properly when sunlight from the rising or 
setting of the sun intermittently strikes the windshield, or if bugs etc. are present on thewindshield.
WARNING
■Caution regarding the use of windshield wipers in AUTO mode 
The windshield wipers may operate unexpectedly if the sensor is touched or the wind- shield is subject to vibration in AUTO mode. Take care that your fingers or anything 
else do not become caught in the windshield wipers.
■Caution regarding the use of washer fluid 
When it is cold, do not use the washer fluid until the windshield becomes warm. The 
fluid may freeze on the windshield and cause low visibility. This may lead to an accident, resulting in death or serious injury. 

2564-3. Operating the lights and wipers
GS450h_300h_OM_OM30F92E_(EE)
NOTICE
■When the windshield is dry 
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle 
Damage to the washer fluid pump may be caused if the lever is pulled toward you and held continually.
■When a nozzle becomes blocked 
In this case, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. Do not try to clear it with a pin or other object. The nozzle will be damaged.
■When standing the windshield wipers up 
Raise the wipers in line with the windshield. ( P. 337)  Failure to do so may result in damage to the wipers and/or the hood. 

3344-6. Driving tips 
GS450h_300h_OM_OM30F92E_(EE)
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures.  
•Engine oil 
• Engine/power control unit coolant 
•Washer fluid
●Have a service technician inspect the condition of the 12-volt battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire chains for 
the rear tires.*
Ensure that all tires are the specified size and brand, and that chains match the size of the tires.
*: Tire chains cannot be mounted on vehicles with front and rear tires of differing 
sizes and vehicles with LDH and 19 inch tires
Perform the following according to the driving conditions: 
●Do not try to forcibly open a window or move a wiper that is frozen. Pour 
warm water over the frozen area to melt the ice. Wipe away the water imme- 
diately to prevent it from freezing. 
●To ensure proper operation of the climate control system fan, remove any 
snow that has accumulated on the air inlet vents in front of the windshield. 
●Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassis, around the tires or on the brakes.
●Remove any snow or mud from the bottom of your shoes before getting in the 
vehicle.
Carry out the necessary preparations an d inspections before driving the vehi- 
cle in winter. Always drive the vehicle in a manner appropriate to the prevail- 
ing weather conditions. 
Preparation for winter
Before driving the vehicle 

399
6 
 6-3. Do-it-yourself maintenance
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce- 
dure as given in these sections.
ItemsParts and tools
12-volt battery  
condition  ( P. 412) 
•Grease 
• Conventional wrench (for terminal clamp bolts)
Engine/power  
control unit coolant  level ( P. 409) 
•“Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitrite 
and non-borate coolant with long-life hybrid organic acid technology“Toyota Super Long Life Coolant” is pre-mixed with 50% 
coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level  ( P. 406)
• “Toyota Genuine Motor Oil” or equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 437)• Fuse with same amperage rating as original
Light bulbs  ( P. 442)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver• Flathead screwdriver
•Wrench
Radiator and  condenser ( P. 411)
Tire inflation  
pressure ( P. 429)• Tire pressure gauge• Compressed air source
Washer fluid  
( P. 411)
• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid) 

403
6 
 6-3. Do-it-yourself maintenance
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
Engine compartment
GS450h
■12-volt battery 
 P. 412
Engine oil level dipstick 
( P. 406) 
Engine coolant reservoir  
( P. 409) 
Engine oil filler cap ( P. 407) 
Power control unit coolant  
reservoir ( P. 409) 
Fuse box  ( P. 437) 
Washer fluid tank  ( P. 411) 
Electric cooling fans 
Condenser ( P. 411) 
Radiator ( P. 411)
1
2
3
4
5
6
7
8
9 

4046-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(EE)
GS300h
■12-volt battery 
 P. 412
Power control unit coolant  
reservoir ( P. 409) 
Engine oil level dipstick 
( P. 406) 
Engine oil filler cap ( P. 407) 
Engine coolant reservoir  
( P. 409) 
Fuse box  ( P. 437) 
Washer fluid tank  ( P. 411) 
Electric cooling fans 
Condenser ( P. 411) 
Radiator ( P. 411)
1
2
3
4
5
6
7
8
9