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Maintenance and care
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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) 
     
        
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4-3. Do-it-yourself maintenance
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Maintenance and care
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May 13, 2008 5:14 pm
■Installing the clips
Push up center portion
Insert
Press
Engine oil
With the engine at operating temperat ure and turned off, check the oil 
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level ground.  After turning off the engine, wait 
a few minutes for the oil to drain back into the bottom of the 
engine.
Hold a rag under the end and pull 
the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the  end, pull the dipstick out and check the 
oil level.
STEP1
STEP2
STEP3
STEP4
STEP5 
     
        
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4-3. Do-it-yourself maintenance
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May 13, 2008 5:14 pm
Wipe the dipstick and reinsert it fully.Low
Full
■ Adding engine oil
If the oil level is below or near the 
low level mark, add engine oil of 
the same type as already in the 
engine.
Make sure to check the  oil type and prepare the items needed before 
adding oil.
Remove the oil filler cap.
Add engine oil slowly, checking the dipstick.
Install the filler cap, turning it clockwise.STEP6
Oil gradeILSAC multigrade engine oil
Oil quantity
(Low   Full)1.6 qt. (1.5 L, 1.3 Imp. qt.)
ItemsClean funnel
STEP1
STEP2
STEP3 
     
        
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4-3. Do-it-yourself maintenance
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Maintenance and care
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May 13, 2008 5:14 pm
■Recommended viscosity
GS460
SAE 5W-20 or 0W-20 engine oil 
may be used. However, SAE 0W-
20 is the best choice for good fuel 
economy and good starting in cold 
weather.
GS350 SAE 5W-30 is the best choice for 
good fuel economy, and good 
starting in cold weather.
  If SAE 5W-30 oil is not available, SAE 10W-30 oil may be used. 
However, it should be replaced 
with SAE 5W-30 at the next oil 
change.
■ How to read oil container labels
The ILSAC (International Lubricant  Standardization and Approval 
Committee) Certification Mark is added to some oil containers to help 
you select the oil you should use.
Outside temperature
Outside temperature 
     
        
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May 13, 2008 5:14 pm
■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of 
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds, frequent 
acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumpt ion, keep in mind that the oil may 
have become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 lmp.qt./600 miles (1.0 L per 1000 
km). If the vehicle consumes more than this amount, contact your Lexus dealer.
■Resetting the engine oil main tenance data (U.S.A. only)
Perform the following steps:
Press the “DISP” switch ( P. 140) to change the multi-information dis-
play to blank.
Turn the “ENGINE START STOP” switch to OFF.
Turn the “ENGINE START STOP” switch to IGNITION ON mode with 
the trip meter reset button held down.
Keep pressing the button for longer than 7 seconds after the “ENGINE 
START STOP” switch is in IGNITION ON mode.
STEP1
STEP2
STEP3
STEP4
After the above operation, the message 
shown in the left will appear on the display.
The master warning light and tone will turn 
on. After 5 seconds, the system reset is com-
pleted. 
     
        
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Maintenance and care
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CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin 
disorders such as inflammation or skin cancer, so care should be taken to avoid 
prolonged and repeated contact. To remove  used engine oil from your skin, wash 
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in househol d trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened. 
     
        
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When trouble arises
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5-2. Steps to take in an emergency
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May 13, 2008 5:14 pm
If a warning message is displayed
Stop the vehicle immediately.A buzzer sounds and a warning message  is shown on the multi-informa-
tion display. The following warnings  indicate the possibility of damage to 
the vehicle that may lead to an acci dent. Immediately stop the vehicle in a 
safe place and contact your Lexus dealer.
Wa r n i n g  m e s s a g eDetails
(Flashing)
Abnormal engine oil pressure.
The warning light may turn on if the engine oil pres-
sure is too low.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Multi-information display
Master warning light
The master warning light also 
comes on or flashes in order to 
indicate that a message is cur-
rently being displayed on the 
multi-information display.
If any of the warning li ght turns on again after pe rforming the following 
actions, contact your Lexus dealer. 
     
        
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May 13, 2008 5:14 pm
Wa r n i n g  m e s s a g eDetailsCorrection procedure
The engine oil level is low.Check the engine oil level, 
and add if necessary.
Low tire inflation pres-
sure.Check the tire inflation 
pressure, and adjust to the 
appropriate level.
(U.S.A. only)
The engine oil should be 
changed.
Check and change the 
engine oil.
Comes on approximately 
5000 miles (8000 km) 
after the engine oil is 
changed (and the oil 
maintenance data has 
been reset).