2015 Lexus GS350 service

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6-1. Maintenance and careCleaning and protecting the vehicle exterior ................. 374
Cleaning and protecting the vehicle inte rior.................. 378
6-2. Maintenance Maintenance requ irements .... 381
General maintenance.............. 384
Emission inspection and maintenance (I/M)
programs ....................................388
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 389
Hood ............................................... 392
Positioning a floor jack............. 393
Engine compartment ............... 395
Tires..................................................408
Tire inflation pressure ................ 418
Wheels ............................................. 421
Air conditioning filter ............... 423
Electronic key battery.............. 425
Checking and replacing fuses...............................................427
Headlight aim .............................. 440
Light bulbs .................................... 442 7-1. Essential information
Emergency flashers .................. 458
If your vehicle has to be stopped in an emergency.... 459
7-2. Steps to take in an emergency If your vehicle needs to be towed................................ 460
If you think something is wrong ................ 466
Fuel pump shut off system .......467
If a warning light turns on or a warning buzzer sounds..... 468
If a warning message is displayed .................................478
If you have a flat tire .................. 502
If the engine will not start ..........515
If the shift lever cannot be shifted from P ....................... 517
If the parking brake cannot be released ................................. 518
If the electronic key does not operate properly ..................... 520
If the vehicle battery is discharged............................. 523
If your vehicle overheats ..........527
If the vehicle becomes stuck ............................................. 530
6Maintenance and care7When trouble arises

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The installation of a mobile two-way radio system in your vehicle could affect elec-
tronic systems such as:
●Multiport fuel injection system/sequential multiport fuel injection system
●Dynamic radar cruise control system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special
instructions regarding installation of a mobile two-way radio system.
Your Lexus is equipped with several sophisticated computers that will record certain
data, such as: •Engine speed
• Accelerator status
•Brake status
• Vehicle speed
• Shift position
The recorded data varies according to the vehicle grade level and options with which
it is equipped. Furthermore, these computers do not record conversations, sounds or
pictures.
● Data usage
Lexus may use the data recorded in these computers to diagnose malfunctions,
conduct research and development, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the
vehicle is leased
• In response to an official request by the police, a court of law or a government agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or vehicle
owner
● Usage of data collected through Safety Connect / Lexus Enform (U.S. mainland
only)
If your Lexus has Safety Connect or Lexus Enform and if you have subscribed to
those services, please refer to the Safety Connect / Lexus Enform Telematics Sub-
scription Service Agreement for informat ion on data collected and its usage.
Installation of a mobile two-way radio system
Vehicle data recordings

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The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus deal er before you scrap your vehicle.
Special handling may apply, See www.dt sc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.
Scrapping of your Lexus
Perchlorate Material
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol
and certain drugs delay reaction time, impa ir judgment and reduce coordination,
which could lead to an accident that could result in death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers
or pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that distracts
the driver, such as adjusting controls, ta lking on a cellular phone or reading can
result in a collision with resulting death or serious injury to you, your occupants or
others.
■General precaution regarding children’s safety
Never leave children unattended in the vehicle, and never allow children to have or
use the key.
Children may be able to start the vehicle or shift the vehicle into neutral. There is
also a danger that children may injure th emselves by playing with the windows, the
moon roof, or other features of the vehicle. In addition, heat build-up or extremely
cold temperatures inside the vehicle can be fatal to children.

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For safety and security
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as well as
the seats, the glove box, parts of the front and rear pillars, and roof side rails may be
hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
●For Lexus Enform Safety Connect subscribers, if the SRS airbags deploy or in the
event of a severe rear-end collision, the system is designed to send an emergency
call to the response center, notifying them of the vehicle’s location (without needing
to push the “SOS” button) and an agent wi ll attempt to speak with the occupants to
ascertain the level of emergency and assistance required. If the occupants are
unable to communicate, the agent automatically treats the call as an emergency
and helps to dispatch the necessary emergency services. ( P. 366)
CAUTION
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perfor m any of the following modifications with-
out consulting your Lexus dealer. The SRS airbags may malfunction or deploy
(inflate) accidentally, causing death or serious injury.
●Installation, removal, disassembl y and repair of the SRS airbags
●Repairs, modifications, removal or replacement of the steering wheel, instrument
panel, dashboard, glove box, seats or seat upholstery, front, side and rear pillars
or roof side rails
●Repairs or modifications of the front fend er, front bumper, or side of the occupant
compartment
●Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows or winches
●Modifications to the vehicle’s suspension system
●Installation of electronic devices such as mobile two-way radios and CD players
●Modifications to your vehicle for a person with a physical disability

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GS350_OM_OM30F69U_(U)4-6. Driving tips
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Driving
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures. • Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspec t the condition of the battery.
●Have the vehicle fitted with four sno w tires or purchase a set of tire
chains for the rear tires.
*
Ensure that all tires are the specified size and brand, and that chains match the
size of the tires.
*: Tire chains cannot be mounted on vehicles with front and rear tires of differing
sizes and vehicles with LDH and 19-inch tires.
Carry out the necessary preparati ons and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropriate
to the prevailing weather conditions.
Preparation for winter

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5-5. Other interior features
Lexus Enform Safety Connect
“SOS” button
LED light indicators
Microphone
: If equipped
Safety Connect is a subscription-based telematics service that uses
Global Positioning System (GPS ) data and embedded cellular technol-
ogy to provide safety and security fe atures to subscribers. Safety Con-
nect is supported by Lexus’ designated response center, which
operates 24 hours per day, 7 days per week.
Safety Connect service is available by subscription on select, telemat-
ics hardware-equipped vehicles.
By using the Safety Connect servic e, you are agreeing to be bound by
the Telematics Subscription Service Agreement and its Terms and
Conditions, as in effect and amen ded from time to time, a current copy
of which is available at Lexus.co m. All use of the Safety Connect ser-
vice is subject to such then-applicable Terms and Conditions.
System components
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Interior features
Subscribers have the following Safety Connect services available:
●Automatic Collision Notification*
Helps drivers receive necessary response from emergency service
providers. ( P. 369)
*: U.S. Patent No. 7,508,298 B2
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Stolen Vehicle Location
Helps drivers in the event of vehicle theft. ( P. 370)
●Emergency Assistance Button (“SOS”)
Connects drivers to response-center support. ( P. 3 7 0 )
●Enhanced Roadside Assistance
Provides drivers various on-road assistance. (P. 370)
After you have signed the Telematics Subscription Service Agreement
and are enrolled, you can begin receiving services.
A variety of subscripti on terms is available for purchase. Contact your
Lexus dealer, call 1-800-25-LEXUS (1-800-255-3987) or push the
“SOS” button in your vehicle for further subscription details.
Services
Subscription

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5-5. Other interior features
■Safety Connect Services Information
●Phone calls using the vehicles Bluetooth® technology will not be possible during
Safety Connect.
●Safety Connect is available beginning Fall 2009 on select Lexus models. Contact
with the Safety Connect response center is dependent upon the telematics device
being in operative condition, cellular conn ection availability, and GPS satellite sig-
nal reception, which can limit the ability to reach the response center or receive
emergency service support. Enrollment and Telematics Subscription Service
Agreement required. A variety of subscription terms is available; charges vary by
subscription term selected.
●Automatic Collision Notification, Emergency Assistance and Stolen Vehicle Loca-
tion will function in the United States, including Hawaii and Alaska, and in Canada,
and Enhanced Roadside Assistance will function in the United States (except
Hawaii) and in Canada. No Safety Connect services will function outside of the
United States in countries other than Canada.
●Safety Connect services are not subject to section 255 of the Telecommunications
Act and the device is not TTY compatible.
■Languages
The Safety Connect response center will offer support in multiple languages. The
Safety Connect system will offer voice prompts in English and Spanish. Please indi-
cate your language of choice when enrolling.
■When contacting the response center
You may be unable to contact the response center if the network is busy.