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148
2-3. Operating the lights and windshield wipers
GS_G_U
June 5, 2008 10:37 am
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■In extremely hot or cold weather
The system will turn off if the windshield gets extremely hot (at more than 176F 
[80 C]) or cold (at less than 14 F [-10C]).
■Customization that can be configured at Lexus dealer
Settings (e.g. drip prevention  function) can be changed. 
(Customizable features  P.  5 7 3 )
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpect edly if the sensor is touched or the 
windshield is subject to vibration in “AUTO” mode. Take care that your fingers or 
anything else do not become caught in the windshield wipers.
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.  
     
        
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149
2-3. Operating the lights and windshield wipers
2
When driving
GS_G_U
June 5, 2008 10:37 am
Headlight cleaner switch (if equipped)
■The headlight cleaner can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode and the headlight 
switch is turned ON.
NOTICE
■When the washer fluid tank is empty
Do not use this function, as the washer fluid pump may overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the 
headlights. 
     
        
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199
2-5. Driving information
2
When driving
GS_G_U
May 13, 2008 5:14 pm
Winter driving tips
Carry out the necessary preparations and inspections before driving the 
vehicle in winter. Always drive the vehicle in a manner appropriate to the 
prevailing weather conditions. 
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures. 
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect th e level and specific gravity of 
battery electrolyte. 
● 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 same si ze and brand, and that chains match 
the size of the tires.
■ Before driving the vehicle
Perform the following according  to the driving conditions. 
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen  area to melt the ice. Wipe 
away the water immediately 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. 
● Remove any ice that has accumul ated on the vehicle chassis. 
● Periodically check for and remove any excess ice or snow that 
may have accumulated in the wheel well or on the brakes.  
     
        
        Page 401 of 596
401
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
ItemsPa r t s  a n d  t o o l s
Engine oil level (P.  4 0 9 )
• “Toyota Genuine Motor Oil” or 
equivalent
• Rag or paper towel, funnel (used 
only for adding engine oil)
Fuses ( P.  4 4 2 )• Fuse with same amperage rating as 
original
Headlight aim ( P.  4 6 7 )• Phillips-head screwdriver
Radiator and condenser (P.  4 1 5 )
Tire inflation pressure  (P.  4 3 1 )• Tire pressure gauge
• Compressed air source
Wa s h e r  f l u i d ( P.  4 2 0 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel 
     
        
        Page 406 of 596
406
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
Engine compartment
 GS460
Engine oil level dipstick
( P.  4 0 9 )
Engine oil filler cap 
( P. 410)
Brake fluid reservoir 
( P.  4 1 6 )
Fuse box ( P.  4 4 2 )
Washer fluid tank 
( P. 420)Engine coolant reservoir 
( P.  4 1 4 )
Electric cooling fans
Condenser ( P. 415)
Radiator ( P. 415)
Fuse box ( P.  4 4 2 )
12 volt battery ( P. 417) 
     
        
        Page 407 of 596
407
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
 GS350
Engine oil level dipstick
( P.  4 0 9 )
Engine oil filler cap 
( P. 410)
Brake fluid reservoir (P.  4 1 6 )
Fuse box ( P.  4 4 2 )
Washer fluid tank 
( P. 420)Engine coolant reservoir 
( P.  4 1 4 )
Electric cooling fans
Condenser ( P. 415)
Radiator ( P. 415)
Fuse box ( P.  4 4 2 )
12 volt battery ( P. 417) 
     
        
        Page 420 of 596
420
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
Washer fluidIf any washer does not work or the 
warning message appears on the 
multi-information display, the 
washer tank may be empty. Add 
washer fluid.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is on. Also, be sure all accessories are 
turned off.
CAUTION
■When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the washer fluid 
contains alcohol and may catch the fire if spilled on the engine etc.
NOTICE
■Do not use any fluid other than washer fluid 
Do not use soapy water or engine antifreeze instead of washer fluid. 
Doing so may cause streaking on the vehicle’s painted surfaces.
■Diluting washer fluid
Dilute washer fluid with water as necessary.  
Refer to the freezing temperatures listed on the washer fluid tank. 
     
        
        Page 503 of 596
5
When trouble arises
503
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
Wa r n i n g  m e s s a g eDetailsCorrection procedure
The trunk is not fully 
closed. flashes and a 
buzzer sounds to indi-
cate that trunk is not fully 
closed (with the vehicle 
having reached a speed 
of 3 mph [5 km/h]).
Close the trunk.
(Flashing)
(If equipped)
The moon roof is not fully 
closed (with the 
“ENGINE START STOP” 
switch is OFF and the 
driver’s door opened).
Close the moon roof.
(Flashing)
The parking brake is still 
engaged (with the vehicle 
having reached a speed 
of more than 3 mph [5 
km/h]).
Release the parking 
brake.
The washer fluid level is 
low.Add washer fluid.