2014 Lexus GS250 check engine

2414-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
■When “Check Entry & Start System” will be displayed on the multi-information dis-
play
The system may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional imme-
diately.
■If the electronic key battery is depleted
→P. 4 8 9
■Operation of the engine switch
●When operating the engine switch, one short, firm press is enough. If the switch is
pressed improperly, the engine may not start or the engine switch mode may not
change. It is not necessary to press and hold the switch.
●If attempting to restart the engine immediately after turning the engine switch off,
the engine may not start in some cases. After turning the engine switch off, please
wait a few seconds before restarting the engine.
■If the smart entry & start system has been deactivated in a customized setting
→P. 6 1 8
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
engine switch while turning the steering
wheel left and right.
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4 7:11 PM

2434-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for
long periods of time without the engine running.
●If “POWER ON” is displayed on the multi-information display, the engine switch
is not off. Exit the vehicle after turning the engine switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the
engine is stopped in another shift lever position, the engine switch will not be
turned off but instead be turned to ACCESSORY mode. If the vehicle is left in
ACCESSORY mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle
checked by any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional immediately.
■Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual, such as
the switch sticking slightly, there may be a malfunction. Contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional
immediately.
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2544-2. Driving procedures
GS350_250_OM_OM30E16E_(EE)
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane ch ange has been performed
Operate the lever again.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature →P. 6 5 0 )
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2774-3. Operating the lights and wipers
4
Driving
GS350_250_OM_OM30E16E_(EE)
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If AUTO mode is selected while the engine switch is in IGNITION ON mode, the
wipers will operate 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
wipers 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 wind-
shield washer fluid reservoir.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.
CAUTION
■Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly 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.
■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.
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435
6Maintenance and care
GS350_250_OM_OM30E16E_(EE)
6-1. Maintenance and careCleaning and protecting the vehicle exterior................. 436
Cleaning and protecting the vehicle interior.................. 440
6-2. Maintenance Maintenance requirements............................. 444
6-3. Do-it-yourself maintenance Do-it-yourself service precautions.................................447
Hood ............................................... 450
Positioning a floor jack...............451
Engine compartment ............... 454
Tires.................................................. 466
Tire inflation pressure ...............483
Wheels ...........................................485
Air conditioning filter ............... 487
Electronic key battery ..............489
Checking and replacing fuses.............................................. 492
Light bulbs.......................................514
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4456-2. Maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends
that maintenance service operations as well as other inspections and repairs be car-
ried out by authorized Lexus dealers or repairers or other duly qualified and
equipped professionals. For repairs and services covered by your warranty, please
visit an authorized Lexus dealer or repairer, who will use genuine Lexus parts in
repairing any difficulties you may encounter. There can also be advantages in utiliz-
ing authorized Lexus dealers or repairers for non-warranty repairs and services, as
members of the Lexus network will be able to expertly assist you with any difficulties
you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped professional
will perform all of the scheduled maintenance on your vehicle reliably and economi-
cally due to their experience with Lexus vehicles.
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indi-
cate service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air conditioning
system after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide leak.
Drive with the windows open and have the exhaust system checked immediately.)
●Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
●Vehicle pulls to one side when driven straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the
floor, vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal (→P. 99)
If you notice any of these clues, take your vehicle to any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as possible.
Your vehicle may need adjustment or repair.
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455 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
■Removing the engine compartment cover
XRight-hand side
XCenter
■Installing the clipsPush up center portion
Insert
Press
Engine compartment cover
1
2
3
NOTICE
■Checking the engine compartment cover after installation
Make sure that the cover is securely installed in its original position.
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4566-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oilPark the vehicle on level ground. After warming up the engine and
turning it off, wait more than 5 minutes for the oil to drain back into
the bottom of the engine.
Holding a rag under the end,
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.
Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or
engine.
Engine oil
1
2
3
4
5
1
2
3
XFlat dipstickXNon-flat dipstick
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