2015 Lexus GS350 service schedule

39 Introduction
THE IMPORTANCE OF SCHEDULED MAINTENANCE
MAINTENANCE
Regular maintenance is essential
to obtaining the highest level of
performance, safety and reliability
from your Lexus. It can also enhance
your vehicle’s resale value. This section
of the Warranty and Services Guide is
designed to help you make sure your
vehicle receives proper and timely
maintenance. It includes factory-
recommended maintenance guidelines
as well as logs in which to document
your vehicle’s maintenance history.
In addition to scheduled maintenance,
your Lexus requires ongoing
general maintenance such as fluid
checks and visual inspections. These
procedures are listed on pages 42–43
of this booklet and described in detail
in the “Maintenance” section of the
Owner’s Manual.It is especially important to check
your vehicle’s engine oil once a
month and to regularly replace
the engine oil and oil filter. Failure
to do so can cause oil starvation
and/or oil gelling, which can
result in severe damage to your
vehicle and require costly repairs
that are not covered by the New
Vehicle Limited Warranty.
With proper maintenance and
care, your vehicle will last longer
and deliver more dependable,
economical performance. Follow
this booklet’s recommendations
and you’ll enjoy maximum reliability
and peace of mind from your
Lexus for many years to come.

40Introduction
MAINTENANCE AND LEXUS WARRANTY COVERAGE
MAINTENANCE
Maintaining your vehicle according
to the recommendations in this
booklet is required to ensure that
your warranty coverage remains
intact. You should keep detailed
records of vehicle maintenance,
including date of service, mileage
at time of service and a description
of service and/or parts installation
performed. The maintenance logs
in this booklet are a good place to
record this information. If you sell
your vehicle, be sure to give your
maintenance records to the
new owner.
Lexus will not deny a warranty claim
solely because you do not have records
to show that you maintained your
vehicle. However, damage or failures
caused by lack of proper maintenance
are not covered under warranty.Maintenance and repair services may
be performed by you or by any auto-
motive service provider you choose.
Lexus will not deny a warranty claim
solely because you used a service
provider other than a Lexus dealer-
ship for maintenance and repairs.
However, damage or failures caused
by improper maintenance or repairs
are not covered under warranty.
Your dealer may recommend more
frequent maintenance intervals or
more maintenance services than
those listed in the scheduled mainte-
nance log. These additional services
are not required to maintain your
warranty coverage. Ask your dealer
for an explanation of any recom-
mended maintenance not included
in the scheduled maintenance log.
For a complete description of
Lexus warranty coverages, see
pages 16–33 of this booklet.

44Scheduled Maintenance Log
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Determining Your
Maintenance Interval:
Months vs. Mileage
Lexus recommends obtaining
scheduled maintenance for your
vehicle every six months or 5,000
miles, whichever occurs first.
For example:
• If at six months you have
driven less than 5,000 miles,
you should obtain mainte-
nance at six months; don’t
wait until 5,000 miles.
• If you drive 5,000 miles in less
than six months, you should
obtain maintenance at 5,000
miles; don’t wait until six months.
Be sure to keep an eye on your
mileage so that you obtain mainte-
nance when recommended. If you
are a low-mileage driver, mark your
calendar to remind yourself to obtain
maintenance every six months.
Special Operating Conditions
In addition to standard maintenance
items, vehicles that are driven under
special operating conditions require
further maintenance service. These
special operating conditions, which put
added demands on a vehicle, include:
• Driving on dirt roads or
on dusty roads
• Repeated trips of less than five
miles in temperatures below
32° F or 0° C
• Extensive idling and/or
low-speed driving for long
distances, such as police, taxi
or door-to-door delivery use
• Towing. Not all vehicles are
designed for towing. Please
refer to the Owner’s Manual
for details.
If you drive primarily under any
of the conditions noted, you
should replace the engine oil
and oil filter every six months
or 5,000 miles. Some of these
special operating conditions
require other maintenance
items; these items are indicated
in each maintenance chart.

45 Scheduled Maintenance Log
SCHEDULED MAINTENANCE LOG
MAINTENANCE
If you drive only occasionally under
any of the special operating conditions
noted, it is not necessary to change
the oil every six months or 5,000
miles or to perform the additional
services listed in the charts. This
added maintenance is required only
if you drive primarily under any of
the special operating conditions.
Complimentary First
Scheduled Maintenance
Service: Six Months or
5,000 Miles
Lexus provides your first scheduled
maintenance service at no charge.
The service is performed at six
months or 5,000 miles, whichever
occurs first. To obtain this service,
contact your Lexus dealership. Your
complimentary service will include
these items:
• Inspect and adjust all fluid levels
• Program Lexus Personalized
Settings, if requested
• Reset maintenance
reminder light
• R o t a t e t i r e s
• Visually inspect brake pads,
calipers and rotors
• Inspect wiper blades
• Check installation of
driver’s floor mat
• Road-test vehicle
What are Lexus
Personalized Settings?
Your vehicle includes a variety
of electronic features that can
be programmed to your prefer-
ences. For example, doors can be
programmed to remain locked
when you shift into “Park.” (For more
information, see the “Customizable
Features” section of the Specifications
chapter in your Owner’s Manual.)
Programming of these features
is performed once at no charge,
provided you obtain the service at the
six-month/5,000-mile scheduled
maintenance service. Programming
of some Lexus Personal ized Settings
requires special equipment and
may be performed only by an
authorized Lexus dealership.

46Scheduled Maintenance Log
Complimentary Second
Scheduled Maintenance
Service: 12 Months or
10,000 Miles
Lexus also provides your second
scheduled maintenance service at
no charge. The service is performed
at 12 months or 10,000 miles,
whichever occurs first. To obtain
this service, contact your Lexus
dealership. Your complimentary
service will include these items:
• Replace engine oil with
0W-20 oil; replace oil filter
• Replace cabin air filter
• Reset maintenance reminder light
• R o t a t e t i r e s
• Visually inspect brake pads,
calipers and rotors
• Inspect wiper blades
• Check installation of
driver’s floor mat
• Road-test vehicle
If you do the majority of your driving
under certain special operating condi-
tions, additional items are included in
this service. See the “12 Months or
10,000 Miles” chart on page 48.
SCHEDULED MAINTENANCE LOG
MAINTENANCE

48
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
6 Months or 5,000 Miles1
❑ Inspect and adjust all fluid levels
❑ Program Lexus Personalized Settings,
if requested
❑ Reset maintenance reminder light
❑ Rotate tires3
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If you drive primarily under certain special
operating conditions, you should also replace
the engine oil with 0W-20 oil and replace the
oil filter. See page 44 for conditions that apply.
Some conditions require additional maintenance.
See below.
If you drive primarily under this

special operating condition, perform
these additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect axle shaft boots
❑ Inspect ball joints and dust covers
❑ Inspect engine air filter
❑ Inspect steering linkage and boots
❑ Tighten nuts and bolts on chassis
Date: _______ Mileage: ________
12 Months or 10,000 Miles2
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Reset maintenance reminder light
❑ Rotate tires3
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
If you drive primarily under this
special operating condition, perform
these additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect axle shaft boots
❑ Inspect ball joints and dust covers
❑ Inspect engine air filter
❑ Inspect steering linkage and boots
❑ Tighten nuts and bolts on chassis
Date: _______ Mileage: ________
1 This service, excluding maintenance required for special operating conditions, is complimentary when performed by an
authorized Lexus dealership.
2This service is complimentary when performed by an authorized Lexus dealership.
3Applies to models with same size front and rear tires and wheels.

68
EXPLANATION OF MAINTENANCE ITEMS
MAINTENANCE
Scheduled Maintenance Log
The following descriptions are provided
to give you a better understanding of
the maintenance services that should
be performed on your vehicle. The
scheduled maintenance log indicates
at which time/mileage intervals each
service should be performed. Please
note that many maintenance services
should be performed only by a
qualified technician.
Axle Shaft Boots
Check the axle shaft boots and
clamps for cracks, deterioration
and damage. Replace any damaged
parts and, if necessary, repack
the grease. A qualified technician
should perform these operations.
Ball Joints and Dust Covers
Check the suspension and steering
linkage ball joints for looseness
and damage. Check all dust covers
for deterioration and damage. A
qualified technician should perform
these inspections.
Body Inspection
Visually check for corrosion, scratches
and other damage. Check outer
body panels, inner panels of the
hood and doors, and underneath the
vehicle. Apply touch-up paint to any
chips and scratches or have them
repaired by a qualified technician.
Brake Fluid
Replace using fluid type specified in
your Owner’s Manual. A qualified tech-
nician should perform this operation.
Brake Lines and Hoses
Visually inspect for proper installation.
Check for chafing, cracks, deterioration
and signs of leakage. Replace any
deteriorated or damaged parts.
A qualified technician should perform
these operations.
Brake Pads, Calipers and Rotors
Check brake pads and rotors for
excessive wear; check brake rotors for
runout. Check brake calipers for fluid
leakage. Some models are equipped
with directional rotors. When servicing
these rotors, reinstall at same location.
A qualified technician should perform
these operations.
For further information on
maintenance services that you
can perform yourself, see the
maintenance sections of your
Owner’s Manual.

69
EXPLANATION OF MAINTENANCE ITEMS
MAINTENANCE
Scheduled Maintenance Log
Cabin Air Filter
Replace at specified intervals. More
frequent replacement may be required
when driving in dusty conditions,
heavy traffic areas, urban areas, desert
areas or dirt roads. Refer to your
Owner’s Manual for service details.
Differential Oil
Inspect each differential component for
signs of leakage. If you discover any
leakage, have it repaired immediately
by a qualified technician. Refer to your
Owner’s Manual for fluid specifications.
Drive Belt
Inspect for cracks, excessive wear
and oiliness. Check the belt tension
and adjust if necessary. Replace the
belt if it is damaged.
Driver’s Floor Mat
•
Only use the driver’s floor mat
de signed specifically for the model
and model year of your vehicle,
such as Lexus Genuine floor mats.
• Always properly secure the
driver’s floor mat using the
retaining hooks.
• Never install another floor mat
on top of the existing driver’s
floor mat.
• Never install the driver’s floor
mat upside down.
Engine Air Filter
Check for excessive dirt, damage
and oiliness. Replace if necessary.
Engine Coolant
When inspecting, visually check
the engine coolant level on the
see-through reservoir. Add coolant
as necessary. When replacing,
drain the cooling system and refill
with coolant. Always use Genuine
Toyota Super Long-Life Coolant
or similar high-quality non-silicate,
non-amine, non-nitrate, non-borate
ethylene-glycol coolant with long-life
hybrid organic acid technology
(i.e., a combination of low phosphates
and organic acids). Check that the
radiator is not blocked with leaves,
dirt or insects and clean if necessary.
Also check the hose connection for
cor rosion and condition of installation.
A qualified technician should perform
these operations.
Note: Initial replacement is at
120 months/100,000 miles.
Replace every 60 months/
50,000 miles thereafter.