flat tire Lexus GS350 2014 Do-it-yourself maintenance /

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GS350_OM_OM30D41U_(U)
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5-6. Using the storage featuresList of storage features ............ 564
• Glove box ............................... 566
• Console box ...........................567
• Cup holders ...........................568
• Auxiliary boxes ..................... 570
Trunk features ................................ 571
5-7. Other interior features Sun visors and vanity mirrors .................... 574
Clock ...............................................575
Ashtrays .......................................... 576
Power outlets ................................577
Heated steering wheel .............579
Seat heaters/ seat ventilators .......................... 581
Armrest ..........................................585
Rear sunshade/ rear door sunshades.............. 586
Trunk storage extension .......... 589
Coat hooks ................................... 590
Assist grips .................................... 591
Utility hook ................................... 592
Garage door opener ............... 593
Safety Connect...........................600 6-1. Maintenance and care
Cleaning and protecting the vehicle exterior ................608
Cleaning and protecting the vehicle interior.................... 612
6-2. Maintenance Maintenance requirements ..... 615
General maintenance................618
Emission inspection and maintenance (I/M)
programs .....................................622
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 623
Hood ................................................626
Positioning a floor jack.............. 627
Engine compartment ............... 629
Tires.................................................. 642
Tire inflation pressure ............... 652
Wheels ........................................... 655
Air conditio ning filter ................657
Electronic key battery.............. 659
Checking and replacing fuses................................................ 661
Headlight aim ............................... 674
Light bulbs ..................................... 6766Maintenance and care

TABLE OF CONTENTS6
GS350_OM_OM30D41U_(U)
7-1. Essential informationEmergency flashers .................. 692
If your vehicle has to be stopped in an emergency.... 693 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 694
If you think something is wrong ................ 700
Fuel pump shut off system ........ 701
If a warning light turns on or a warning buzzer sounds..... 702
If a warning message is displayed .................................. 712
If you have a flat tire ...................736
If the engine will not start ......... 749
If the shift lever cannot be shifted from P ....................... 751
If the parking brake cannot be released .................................752
If the electronic key does not operate properly ......................754
If the vehicle battery is discharged.............................. 757
If your vehicle overheats ............761
If the vehicle becomes stuck .............................................. 764
7When trouble arises

15Pictorial index
GS350_OM_OM30D41U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 304
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . P. 375
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 610
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 206
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 770
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 642
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 775
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 304
Checking/rotation/tire pressure warning system. . . . . . . . . . . . . . . . . . . . P. 642
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 736
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 626
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 626
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 630
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 7 7 0
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 761
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 719
Headlights/parking lights/daytime running ligh ts . . . . . . . . . . . . . . . . . . .P. 192
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 197
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P . 186
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 192
Stop lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 277
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 19 2
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 180
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 19 2
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Light bulbs of the exterior lights for driving
(Replacing method: P. 676, Watts: P. 777)
*: If equipped
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12
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15

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GS350_OM_OM30D41U_(U)
2. Instrument cluster
Multi-information display
The multi-information display presents the driver with a variety of driving-
related data including the cu rrent outside air temperature.
●Eco Driving Indicator (P. 9 0 )
●Outside temperature display
( P. 8 5 )
●Trip information ( P. 8 5 )
Displays driving range, fuel consump-
tion and other cruising related infor-
mation
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Tire inflation pressure (if equipped) ( P. 6 5 2 )
●Drive monitor ( P. 8 7 )
●Intuitive parking assist display* (if equipped) (P. 2 4 2 )
●Dynamic radar cruise control display* (if equipped) ( P. 215)
●LKA (Lane-Keeping Assist) display* (if equipped) ( P. 2 3 4 )
●Warning messages ( P. 712)
Automatically displayed when a malfunction occurs in one of the vehicle’s sys-
tems. Display can be switched by pressing the “DISP” button. ( P. 8 5 )
*: Automatically displayed when the system is used. Display can be switched by
pressing the “DISP” button. ( P. 8 5 )
Display contents

GS350_OM_OM30D41U_(U)
872. Instrument cluster
2
Instrument cluster
■Tire inflation pressure (if equipped)
Outside temperature, average fuel
consumption after re fueling or driv-
ing range can be selected and dis-
played.
If displayed on the drive monitor,
other trip information or warning
messages can be di splayed simulta-
neously.
For display and selection proce-
dures, follow the “Setting up the dis-
plays”.
The information displayed on the drive
monitor will not be displayed on the
trip information screen.
Displays inflation pres sure of each tire
The inflation pressure of the spare tire will not be dis-
played.
Drive monitor

GS350_OM_OM30D41U_(U)
912. Instrument cluster
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Instrument cluster
■Tire inflation pressure (if equipped)
●It may take a few minutes to display the tire inflation pressure after the engine
switch is turned to IGNITION ON mode. It may also take a few minutes to display
the tire inflation pressure after inflation pressure has been adjusted.
●“---” may be displayed if the tire information cannot be determined due to unfavor-
able radio wave conditions.
●Tire inflation pressure changes with temperature. The displayed values may also be
different from the values measured using a tire pressure gauge.
■Liquid crystal display
Small spots or light spots may appear on th e display. This phenomenon is character-
istic of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
Setting of available languages can be changed. (Custo mizable features: P. 7 9 3 )
CAUTION
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal informa-
tion display. At extremely low temperatures, the information display monitor may
respond slowly, and display changes may be delayed.
For example, there is a lag between the dr iver’s shifting and the new gear number
appearing on the display. This lag could ca use the driver to downshift again, caus-
ing rapid and excessive engine braking and possibly an accident resulting in death
or injury.
■Cautions during setting up the display
As the engine needs to be running during setting up the display, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such as a
garage, exhaust gases including harmful carbon monoxide (CO) may collect and
enter the vehicle. This may lead to death or a serious health hazard.
NOTICE
■During setting up the display
To prevent battery discharge, ensure that the engine is running while setting up the
display features.

GS350_OM_OM30D41U_(U)
1654-1. Before driving
4
Driving
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time during driving,
as this may restrain driving torque.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at
the same time to hold the vehicle on a hill.
■When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move or
the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage th e power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 7 3 6 )

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GS350_OM_OM30D41U_(U)
4-5. Using the driving support systems
■If there are lane markers on only one side of the vehicle
The lane keeping assist function will not operate. Also, the lane departure warning
will not operate for the side on which lane markers could not be recognized.
■Conditions in which the function may not operate correctly
In the following conditions, the LKA system functions may not operate, or it may not
be possible to ensure adequate performance. Also, the camera sensor may be
unable to recognize lane lines causing the lane departure warning function to oper-
ate incorrectly, or the lane keeping assist function may not operate properly. How-
ever, this does not indicate a malfunction.
●When driving through an area with no lane markers, such as a tollbooth, a crossing
or before a ticket checkpoint
●When driving on a sharp curve
●When lanes are extremely narrow or extremely wide
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure
●When the following distance between your vehicle and the vehicle ahead is
extremely short
●When the lane markers are yellow (These may be more difficult for the system to
recognize compared to white markers.)
●When the lane markers are broken, “Botts’ dots”, “Raised pavement marker” or
stones
●When lane markers are obscured or pa rtially obscured by sand, dirt, etc.
●When there are shadows on the road running parallel with lane markers, or if a
shadow covers the lane markers
●When driving on a particularly bright road surface, such as concrete
●When driving on a road surface that is bright due to reflected light
●When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens
●When driving on roads that are branching or merging
●When driving on a road surface that is wet due to rain, previous rainfall, standing
water, etc.
●When the vehicle experiences strong up-a nd-down motion such as when driving
on an extremely rough road or on a seam in the pavement
●When headlight brightness at nighttime is reduced due to dirt on the lenses, or
when the headlights are misaligned
●When driving with a strong crosswind

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GS350_OM_OM30D41U_(U)
4-5. Using the driving support systems
CAUTION
■Situations unsuitable for LKA
Do not use LKA in any of the following situations.
Otherwise, the system may not function correctly and could result in an accident.
●When driving with snow tires, tire ch ains, a spare tire, or similar equipment
●When the tires have been excessively worn, or when the tire inflation pressure is
low.
●When there are objects or structures along the roadside that might be misinter-
preted as lane markers (such as guardrails, curb, reflector posts, etc.)
●When driving on snowy roads
●When pavement lane markers are difficult to see due to rain, snow, fog, sand, dirt,
etc.
●When there are visible lines on the pavement from road repairs, or if the remains
of old lane markers are still visible on the road
●When driving on slippery roads, such as those covered with rain, ice or snow
●When driving in a lane other than the driving or passing lanes on a freeway or
highway
●When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane
●When emergency towing
NOTICE
■To prevent damage to or incorrect operation of the LKA system
●Do not modify the headlights or attach stickers to the surface of the lights.
●Do not modify the suspension or sun vi sor, or replace them with non-genuine
parts.
●Do not install or place anything on the h ood or the grille. Also, do not install a
grille guard (bull bars, kangaroo bar etc.).
●Do not modify the sun visor or replace it with anything other than a genuine
Lexus product.
●If your windshield needs repairs, contact your Lexus dealer.

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GS350_OM_OM30D41U_(U)
4-5. Using the driving support systems
CAUTION
■When using the rear view monitor system
The rear view monitor system is a supplemental device intended to assist the driver
when backing up. When backing up, be sure to check visually behind and all
around the vehicle before proceeding.
Observe the following precautions to avoid an accident that could result in death
or serious injuries.
●Never depend on the rear view monitor system entirely when backing up. The
image and the position of the guide lines displayed on the screen may differ from
the actual state.
Use caution, just as you would when backing up any vehicle.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●The instructions given are only guidelines.
When and how much to turn the steering wheel will vary according to traffic con-
ditions, road surface conditions, vehicle condition, etc. when parking. It is neces-
sary to be fully aware of this before using the rear view monitor system.
●When parking, be sure to check that the parking space will accommodate your
vehicle before maneuvering into it.
●Do not use the rear view monitor system in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or the compact spare tire
• When the trunk lid is not closed completely
• On roads that are not flat or straight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is moving, or you may become unable to
see the image on the screen. Be sure to check direct visually and with the mirrors
all around the vehicle before proceeding.
●If the tire sizes are changed, the position of the fixation guide lines displayed on
the screen may change.
●The camera uses a special lens. The di stances between objects and pedestrians
that appear in the image displayed on th e screen will differ from the actual dis-
tances. ( P. 2 5 6 )