check engine Lexus GS350 2013 Owner's Guide

172
GS350_U (OM30C34U)
4-2. Driving procedures
Stop the vehicle.
Shift the shift lever to P.
Set the parking brake. (→P. 1 8 6 )
Press the engine switch.
Release the brake pedal and check that “POWER ON” on the multi-
information display is off.
Modes can be changed by pressing the engine switch with brake pedal
released. (The mode changes each time the switch is pressed.)
Off*
The emergency flashers can be used.
The multi-information display will not
be displayed.
ACCESSORY mode
Some electrical components such as
the audio system can be used.
“POWER ON” will be displayed on
the multi-information display.
IGNITION ON mode
All electrical components can be
used.
“POWER ON” will be displayed on
the multi-information display.
*: If the shift lever is in a position other than P when turning off the engine, the
engine switch will be turned to
ACCESSORY mode, not to off.
Stopping the engine
Changing engine switch modes
1
2
3
4
5

GS350_U (OM30C34U)
1734-2. Driving procedures
4
Driving
If the engine is stopped with the shift lever in a position other than P, the
engine switch will not be turned off but instead be turned to ACCES-
SORY mode. Perform the following procedure to turn the switch off:Check that the parking brake is set.
Shift the shift lever to P.
Check that “POWER ON” and “Turn Power OFF” are displayed alter-
nately on the multi-information display and then press the engine switch
once.
Check that “POWER ON” and “Turn Power OFF” on the multi-infor-
mation display are off.
When stopping the engine with th e shift lever in a position other
than P
1
2
3
4

174
GS350_U (OM30C34U)
4-2. Driving procedures
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION
ON mode (the engine is not running) for more than an hour with the shift lever in P,
the engine switch will automatically turn off. However, this function cannot entirely
prevent battery discharge. Do not leave the vehicle with the engine switch in
ACCESSORY or IGNITION ON mode for long periods of time when the engine is
not running.
■Electronic key battery depletion
→P. 112
■Conditions affecting operation
→P. 1 0 8
■Notes for the entry function
→P. 1 0 9
■If the engine does not start
●The engine immobilizer system may not have been deactivated. ( →P. 6 8 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The engine may not start if the shift
lever is displaced out of P. “Shift to P position to Start” will be displayed on the multi-
information display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering
wheel will be locked due to the steering lock function. Operating the engine switch
again automatically cancels the steering lock.

GS350_U (OM30C34U)
1754-2. Driving procedures
4
Driving
■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 Access System with Elec. Key” will be displayed on the multi-infor-
mation display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the electronic key battery is depleted
→P. 6 4 6
■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 access system with push-button start has been deactivated in a cus-
tomized setting
→P. 74 0
“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.

GS350_U (OM30C34U)
1774-2. Driving procedures
4
Driving
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 your Lexus dealer 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 your Lexus dealer
immediately.

GS350_U (OM30C34U)
1854-2. Driving procedures
4
Driving
■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 change 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. 777)

GS350_U (OM30C34U)
2014-3. Operating the lights and wipers
4
Driving
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper is turned to AUTO mode 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 185°F (85°C) or higher, or -22°F
(-30°C) 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.

593
GS350_U (OM30C34U)
Maintenance and care6
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................. 594
Cleaning and protecting the vehicle interior ..................598
6-2. Maintenance Maintenance requirements .... 601
General maintenance ..............604
Emission inspection and maintenance (I/M)
programs ................................... 608
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................609
Hood .................................................612
Positioning a floor jack ...............613
Engine compartment .................615
Tires.................................................. 629
Tire inflation pressure ............... 639
Wheels ........................................... 642
Air conditioning filter ............... 644
Electronic key battery .............. 646
Checking and replacing fuses..............................................648
Headlight aim ................................661
Light bulbs..................................... 663

604
GS350_U (OM30C34U)
6-2. Maintenance
General maintenance
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Warranty and Service Guide”
or “Owner’s Manual Supplement”. It is recommended that any prob-
lem you notice should be brought to the attention of your Lexus dealer
or qualified service shop for advice.
Engine compartment
ItemsCheck points
BatteryCheck the battery fluid level and
connections. ( →P. 6 2 4 )
Brake fluidIs the brake fluid at the correct level?
(→ P. 6 2 3 )
Engine coolantIs the engine coolant at the correct
level? ( →P. 6 2 0 )
Engine oilIs the engine oil at the correct level?
(→ P. 6 1 7 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenserThe radiator and condenser should be
free from foreign objects. ( →P. 6 2 2 )
Wa s h e r f l u i dIs there sufficient washer fluid?
(→ P. 6 2 8 )

GS350_U (OM30C34U)
6076-2. Maintenance
6
Maintenance and care
Ve h i c l e e x t e r i o r
ItemsCheck points
Doors/trunk• Do the doors/trunk operatesmoothly?
Engine hood• Does the engine hood lock systemwork properly?
Fluid leaks
• There should not be any signs of fluidleakage after the vehicle has been
parked.
Ti r e s
• Is the tire inflation pressure correct?
• The tires should not be damaged orexcessively worn.
• Have the tires been rotated accord- ing to the maintenance schedule?
• The wheel nuts should not be loose.
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.