coolant level Lexus GS350 2015 Warranty and Services Guide

42Introduction
GENERAL MAINTENANCE AND REGULAR USE
MAINTENANCE
In addition to scheduled maintenance,
your Lexus requires ongoing general
maintenance such as fluid checks
and visual inspections. The recom-
mended guidelines for inspections
are listed below. Please refer to
the “Mainte nance” section of the
Owner’s Manual for a detailed
description of inspection procedures.
Every 30 Days
At least once every 30 days,
perform these inspections:
• Check engine oil level using
the dipstick
• Visually check engine
coolant level on the
see-through reservoir
• Visually check brake fluid level
on the see-through reservoir
• Visually check condition
of battery
• Check level of windshield
washer fluid
• Check tire pressure
• Check tires for damage
and wear
• Check installation of
driver’s floor mat
After a Car Wash
• Check installation of
driver’s floor mat
When Cleaning the Interior
• Remove dirt and dust with a
vacuum cleaner. Wipe dirty
surfaces with a soft cloth
dampened with warm water.
• When cleaning leather interior,
remove dirt and dust with a
vacuum cleaner. Using a
sponge, apply a small amount
of neutral wool detergent mixed
in water, rubbing in a circular
motion. Wipe off any excess
detergent and let leather dry
in an open-air location.
• When cleaning carpet, remove dirt
and dust with a vacuum cleaner.
Apply a foaming-type carpet
cleaner with a sponge or brush,
allowing cleaner to work for a few
minutes to loosen dirt. Continue by
rubbing carpet in a circular motion.
Wipe off any excess cleaner with
a clean cloth. If any dirt remains,
repeat process. Best results are
obtained by keeping the carpet as
dry as possible.

49
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
1 Applies to models with same size front and rear tires and wheels.
18 Months or 15,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
Note: If 0W-20 oil was not used at last oil change, or 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 engine air filter
❑ Tighten nuts and bolts on chassis __ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
Date: __________________________ Mileage: __________________________

53
SCHEDULED MAINTENANCE LOG
Scheduled Maintenance Log
54 Months or 45,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
Note: If 0W-20 oil was not used at last oil change, or 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 engine air filter
❑ Tighten nuts and bolts on chassis __ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________
MAINTENANCE

57
SCHEDULED MAINTENANCE LOG
Scheduled Maintenance Log
90 Months or 75,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Drive belt
__ Engine coolant (see page 69)
Note: If 0W-20 oil was not used at last oil change, or 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 engine air filter
❑ Tighten nuts and bolts on chassis __ Exhaust pipes and mountings
__ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________
MAINTENANCE

60
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
114 Months or 95,000 Miles
❑ Inspect and adjust all fluid levels
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If 0W-20 oil was not used at last oil
change, or 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
120 Months or 100,000 Miles
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Replace engine coolant (see page 69)
❑ 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
1 Applies to models with same size front and rear tires and wheels.
Date: _______ Mileage: ________Date: _______ Mileage: ________

62
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
132 Months or 110,000 Miles
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ 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
138 Months or 115,000 Miles
❑ Inspect and adjust all fluid levels
❑ Inspect engine coolant (see page 69)
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If 0W-20 oil was not used at last oil
change, or 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
1 Applies to models with same size front and rear tires and wheels.
Date: _______ Mileage: ________Date: _______ Mileage: ________

64
SCHEDULED MAINTENANCE LOG
Scheduled Maintenance Log
150 Months or 125,000 Miles
❑ Inspect and adjust all fluid levels
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If 0W-20 oil was not used at last oil
change, or 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
156 Months or 130,000 Miles
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Inspect engine coolant (see page 69)
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ 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
1 Applies to models with same size front and rear tires and wheels.
Date: _______ Mileage: ________Date: _______ Mileage: ________
MAINTENANCE

66
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
168 Months or 140,000 Miles
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ 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
174 Months or 145,000 Miles
❑ Inspect and adjust all fluid levels
❑ Inspect engine coolant (see page 69)
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If 0W-20 oil was not used at last oil
change, or 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
1 Applies to models with same size front and rear tires and wheels.
Date: _______ Mileage: ________Date: _______ Mileage: ________

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.