tire size Lexus GS250 2014 User Guide

485
6
6-3. Do-it-yourself maintenance
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
Wheels
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width and
inset
*.
Replacement wheels are available at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Use only Lexus wheel nuts and wrenches designed for use with your
aluminum wheels.
●When rotating, repairing or changing your tires, check that the wheel
nuts are still tight after driving 1600 km (1000 miles).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or
rubber hammer when balancing your wheels.
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause a loss of han-
dling control.
Wheel selection
Aluminum wheel precautions
GS350_250_OM_OM30E16E_(EE).book Page 485 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

5487-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
*1: Open door warning buzzer:→ P. 559
*2: Driver’s and front passenger’s seat belt buzzer:
The driver’s and front passenger’s seat belt buzzer sounds to alert the driver and
front passenger that his or her seat belt is not fastened. The buzzer sounds inter-
mittently for 30 seconds after the vehicle reaches a speed of 20 km/h (12 mph).
Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for
90 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such
as • Natural causes ( →P. 5 4 9 )
• Flat tire ( →P. 577, 592)
Adjust the tire inflation pressure
(including the full-size spare
tire) to the specified level.
The light will turn off after a
few minutes. In case the light
does not turn off even if the
tire inflation pressure is
adjusted, have the system
checked by any authorized
Lexus dealer or repairer, or
another duly qualified and
equipped professional.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pressure
warning systemHave the system checked by
any authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped professional.
Warning lightWarning light/DetailsCorrection procedure
GS350_250_OM_OM30E16E_(EE).book Page 548 Tuesday, July 8, 201 4 7:11 PM

5507-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■When a tire is replaced with a spare tire
Vehicles with a compact spare tire: The compact spare tire is not equipped with a tire
pressure warning valve and transmitter. If a tire goes flat, the tire pressure warning
light will not turn off even though the flat tire has been replaced with the spare tire.
Vehicles with a full-size spare tire: The spare tire is also equipped with a tire pressure
warning valve and transmitter. The tire pressure warning light will turn on if the tire
inflation pressure of the spare tire is low. If a tire goes flat, the tire pressure warning
light will not turn off even though the flat tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
→P. 4 7 2
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when
the engine switch is turned to IGNITION ON mode, have it checked by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio
sound.
GS350_250_OM_OM30E16E_(EE).book Page 550 Tuesday, July 8, 201 4 7:11 PM

5797-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
XVehicles with a full-size spare tire
Jack handle
Parking brake release tool
Screwdriver
Towing eyeletWheel nut wrench
Jack
Spare tire1
2
3
4
5
6
7
GS350_250_OM_OM30E16E_(EE).book Page 579 Tuesday, July 8, 201
4 7:11 PM

5817-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
Remove the center luggage mat. (→P. 4 1 0 )
Remove the spacer and take out the jack handle from the reverse side
of the center luggage mat.
Take out the jack.
Taking out the jack and jack handle
1
2
XVehicles with a compact spare
tireXVehicles with a full-size spare
tire
3
For tightening
For loosening
XVehicles with a compact spare
tireXVehicles with a full-size spare
tire
1
2
GS350_250_OM_OM30E16E_(EE).book Page 581 Tuesday, July 8, 201 4 7:11 PM

5827-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
XVehicles with a compact spare tire
Remove the center luggage mat. (→P. 4 1 0 )
Loosen the center fastener that
secures the spare tire.
XVehicles with a full-size spare tire
Remove the center luggage mat. ( →P. 4 1 0 )
Remove the spacers.
Loosen the center fastener that
secures the spare tire.
Taking out the spare tire
1
2
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 582 Tuesday, July 8, 201 4 7:11 PM

5847-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
Turn the tire jack portion “A” by
hand until the notch of the jack is
in contact with the jack point.
The jack point guides are located
under the rocker panel. They indicate
the jack point positions.
Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and
the tire.
When resting the tire on the ground,
place the tire so that the wheel design
faces up to avoid scratching the wheel
surface.
Vehicles with a full-size spare tire:
Remove the wheel ornament by
pushing from the reverse side.
3
4
5
6
GS350_250_OM_OM30E16E_(EE).book Page 584 Tuesday, July 8, 2014 7:11 PM

5877-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
Firmly tighten each wheel nut two
or three times in the order shown
in the illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
Vehicles with a full-size spare tire:
Reinstall the wheel ornament.
Stow the flat tire, tire jack and all tools.
4
5
6
GS350_250_OM_OM30E16E_(EE).book Page 587 Tuesday, July 8, 2014 7:11 PM

5887-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY” on
the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(→ P. 6 4 5 )
■When using the compact spare tire (vehicles with the tire pressure warning sys-
tem)
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you replace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires.
■If you have a flat rear tire on a road covered with snow or ice (vehicles with front
and rear tires of the same size and compact spare tire only)
Install the compact spare tire on one of the front wheels of the vehicle. Perform the
following steps and fit tire chains to the rear tires:
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehicle.
Fit tire chains to the rear tires.
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 588 Tuesday, July 8, 201 4 7:11 PM