2014 Lexus GS250 service

481 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
CAUTION
■Caution regarding interference with electronic devices (vehicles with the tire
pressure warning system featuring a tire inflation pressure display function)
●Users of any electrical medical device other than implantable cardiac pacemak-
ers, cardiac resynchronization therapy-pacemakers or implantable cardioverter
defibrillators should consult the manufacturer of the device for information about
its operation under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, transmitters
and tire valve caps (vehicles with the tire pressure warning system)
●When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitters, contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional as the tire pressure warning valves and trans-
mitters may be damaged if not handled correctly.
●Make sure to install the tire valve caps. If the tire valve caps are not installed,
water could enter the tire pressure warning valves and the tire pressure warning
valves could be bound.
●When replacing tire valve caps, do not use tire valve caps other than those speci-
fied. The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmitters (vehicles
with the tire pressure warning system)
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional
or other qualified service shop as soon as possible. Make sure to replace the tire
pressure warning valve and transmitter when replacing the tire. (→P. 4 6 8 )
●People with implantable cardiac pacemak-
ers, cardiac resynchronization therapy-
pacemakers or implantable cardioverter
defibrillators should not come within
450mm (17.7 in.) of the tire pressure warn-
ing system initiators. The radio waves may
affect the operation of such devices.
GS350_250_OM_OM30E16E_(EE).book Page 481 Tuesday, July 8, 201 4 7:11 PM

4866-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
■When replacing wheels (vehicles with the tire pressure warning system)
The wheels of your vehicle are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warning system to provide advance warning in the
event of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure
warning valves and transmitters must be installed. (→P. 4 6 8 )
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident, causing death or serious injury.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an acci-
dent.
NOTICE
■Replacing tire pressure warning valves and transmitters (vehicles with the tire
pressure warning system)
●Because tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional or other qualified
service shop. In addition, make sure to purchase your tire pressure warning
valves and transmitters at any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
●Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-
genuine wheels.
GS350_250_OM_OM30E16E_(EE).book Page 486 Tuesday, July 8, 201 4 7:11 PM

5367-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or commercial towing service before towing.
●The engine is running but the vehicle will not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommen d having your vehicle towed by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or commercial towing service, using a wheel-lift
type truck or flatbed truck.
Use a safety chain system for all to wing, and abide by all state/provin-
cial and local laws.
Situations need to contact dealers before towing
GS350_250_OM_OM30E16E_(EE).book Page 536 Tuesday, July 8, 201 4 7:11 PM

6117-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
NOTICE
■When performing an emergency repair
●Perform the emergency repair without removing the nail or screw that has punc-
tured the tread of the tire. If the object that has punctured the tire is removed,
repair by the emergency tire puncture repair kit may not be possible.
●The repair kit is not waterproof. Make sure that the repair kit is not exposed to
water, such as when it is being used in the rain.
●Do not put the repair kit directly onto dusty ground such as sand at the side of the
road. If the repair kit vacuums up dust etc., a malfunction may occur.
■Handling the emergency tire puncture repair kit
●The repair kit power source should be 12 V DC suitable for vehicle use. Do not
connect the repair kit to any other source.
●If gasoline splatters on the repair kit, the repair kit may deteriorate. Take care not
to allow gasoline to contact it.
●Store the emergency tire puncture repair kit in the trunk.
The kit may be thrown around during sudden braking and so forth, damaging the
kit.
●Store the repair kit in the trunk out of reach of children.
●Do not disassemble or modify the repair kit. Do not subject parts such as the air
pressure indicator to impacts. This may cause a malfunction.
■To avoid damage to the tire pressure warning valves and transmitters (vehicles
with the tire pressure warning system)
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional
or other qualified service shop as soon as possible. Make sure to replace the tire
pressure warning valve and transmitter when replacing the tire. (→P. 4 6 8 )
GS350_250_OM_OM30E16E_(EE).book Page 611 Tuesday, July 8, 201 4 7:11 PM

637
8
8-1. Specifications
Vehicle specifications
GS350_250_OM_OM30E16E_(EE)
How to read oil container labels:
Either or both API registered marks are added to some oil containers
to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designation by
American Petroleum Institute
(API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has fuel-
saving and environmental protec-
tion capabilities.
ILSAC Certification Mark
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is dis-
played on the front of the container.
1
2
GS350_250_OM_OM30E16E_(EE).book Page 637 Tuesday, July 8, 201 4 7:11 PM

639
8
8-1. Specifications
Vehicle specifications
GS350_250_OM_OM30E16E_(EE)
How to read oil container labels:
Either or both API registered marks are added to some oil containers
to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designation by
American Petroleum Institute
(API).
Center portion: “SAE 10W-30”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has fuel-
saving and environmental protec-
tion capabilities.
ILSAC Certification Mark
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is dis-
played on the front of the container.
1
2
GS350_250_OM_OM30E16E_(EE).book Page 639 Tuesday, July 8, 201 4 7:11 PM

641
8
8-1. Specifications
Vehicle specifications
GS350_250_OM_OM30E16E_(EE)
Oil viscosity (0W-20 is expla
ined here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows cold startability. Oils with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one
with a higher value) may be better suited if the vehicle is operated at
high speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil containers
to help you select the oil you should use. API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designation by
American Petroleum Institute
(API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has fuel-
saving and environmental protec-
tion capabilities.
ILSAC Certification Mark
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is dis-
played on the front of the container.
1
2
GS350_250_OM_OM30E16E_(EE).book Page 641 Tuesday, July 8, 201 4 7:11 PM