AUTO Lexus GS250 2012 Owner's Manual

6335-7. Other interior features
5
Interior features
GS350/250_EE (OM30C36E)
The seat heaters/seat ventilators can be used when
The engine switch is in IGNITION ON mode.
The seat heater timer control
The seat heater automatically switches from HiMidLoOff. The
switching timing differs depending on the temperature inside the cabin etc.
when the seat heater was operated.
Automatic operation of the seat heater during Eco drive mode
If the driving mode select switch is switched to Eco drive mode in cold tem-
peratures, the seat heater may be automatically operated to assist heating per-
formance.
Button lock function (vehicles with rear control panel)
To prevent inadvertent operation, some buttons on the rear armrest can be
locked. (P. 429)
Rear control panel illumination off function (vehicles with rear control panel)
Control panel illumination on the rear armrest can be turned off. (P. 429)
CAUTION
Burns (vehicles with seat heaters)
Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
Do not use seat heater more than necessary. Doing so may cause minor
burns or overheating.

6375-7. Other interior features
5
Interior features
GS350/250_EE (OM30C36E)Pull the tab of the rear door sun-
shade and hook the shade on
using the anchors.
To retract the rear door sunshade,
unhook the shade and retract it
slowly.
The rear sunshade can be used when
The engine switch is in IGNITION ON mode.
Operating the rear sunshade after the engine is turned off
The rear sunshade can be operated for approximately 1 minute even after the
engine switch is turned to ACCESSORY mode or turned off.
Reverse operation feature
To ensure adequate rear visibility, the rear sunshade automatically lowers
when the shift lever is shifted to R.
However, the rear sunshade is raised again if any of the following occurs:
The button is pressed again.*
Shift the shift lever into P.
The shift lever is shifted out of R, and the vehicle reaches a speed of 15 km/
h (9 mph).
If the engine is off when the rear sunshade has been lowered due to the
reverse operation feature, it will not be raised even when the engine is
turned on again and the vehicle reaches a speed of 15 km/h (9 mph). To
raise the sunshade again, press the button.
*: Occasionally, the reverse function may not be carried out after the switch
has been pressed. Repeat the above operation to operate the function.
Rear door sunshades

6446-1. Maintenance and care
GS350/250_EE (OM30C36E)
Cleaning and protecting the vehicle exterior
Working from top to bottom, liberally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any
dirt and dust.
Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
Wipe away any water.
Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.
Automatic car washes
Fold the mirrors before washing the vehicle. Start washing from the front of
the vehicle. Make sure to extend the mirrors before driving.
Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.
Rear spoiler (if equipped) may not be washable in some automatic car
washes. There may also be an increased risk of damage to vehicle.
High pressure car washes
Do not allow the nozzles of the car wash to come within close proximity of
the windows.
Before using the car wash, check that the fuel filler door on your vehicle is
closed properly.
Perform the following to protect the vehicle and maintain it in
prime condition:

6466-1. Maintenance and care
GS350/250_EE (OM30C36E)
CAUTION
When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components etc. to catch fire.
When cleaning the windshield (with rain-sensing windshield wipers)
When the upper part of the windshield where the raindrop sensor is
located is touched by hand
When a wet rag or similar is held close to the raindrop sensor
If something bumps against the windshield
If you directly touch the raindrop sensor body or if something bumps into
the raindrop sensor
Precautions regarding the exhaust pipes and rear bumper diffusers
Exhaust gases cause the exhaust pipes and rear bumper diffusers to become
quite hot.
When washing the vehicle, be careful not to touch the pipes and diffusers
until they have cooled sufficiently, as touching hot exhaust pipes and rear
bumper diffusers can cause burns.
Set the wipers to the intermittent wind-
shield wipers. (P. 245)
If AUTO mode is selected, the wipers
may operate unexpectedly in the follow-
ing situations, and may result in hands
being caught or other serious injuries and
cause damage to the wiper blades.

6476-1. Maintenance and care
6
Maintenance and care
GS350/250_EE (OM30C36E)
NOTICE
To prevent paint deterioration and corrosion on the body and components
(aluminum wheels etc.)
Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the
paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust,
iron powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
If the paint is chipped or scratched, have it repaired immediately.
To prevent the wheels from corroding, remove any dirt and store in a
place with low humidity when storing the wheels.
Cleaning the exterior lights
Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.
Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
When using an automatic car wash (with rain-sensing windshield wipers)
Set the wipers to the intermittent windshield wipers. (P. 245)
If AUTO mode is selected, the wipers may operate and the wiper blades
may be damaged.

651
6 6-2. Maintenance
Maintenance and care
GS350/250_EE (OM30C36E)
Maintenance requirements
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “Lexus
Service Booklet” or “Lexus Warranty Booklet”.
What about do-it-yourself maintenance?
Many of the maintenance items are easy to do yourself if you have a little
mechanical ability and a few basic automotive tools.
Note, however, that some maintenance tasks require special tools and
skills. These are best performed by qualified technicians. Even if you’re
an experienced do-it-yourself mechanic, we recommend that repairs and
maintenance be conducted by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional. Any authorized Lexus
dealer or repairer will keep a record of maintenance, which could be use-
ful should you ever require Warranty Service. Should you choose to select
a qualified and equipped professional other than an authorized Lexus
repairer to service or maintain your vehicle, we recommend that you
request that a record of maintenance be kept.
To ensure safe and economical driving, day-to-day care and regu-
lar maintenance are essential. Lexus recommends performing the
following maintenance:
Scheduled maintenance
Do-it-yourself maintenance

6566-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
CAUTION
When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans
may automatically start to run if the air conditioning is on and/or the cool-
ant temperature is high. (P. 667)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine
wear due to dirt in the air. Also, a backfire could cause a fire in the engine
compartment.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

659 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
CAUTION
When raising your vehicle
Make sure to observe the following precautions to reduce the possibility of
death or serious injury:
When using a floor jack, follow the instructions of the manual provided
with the jack.
Do not use the jack that was supplied with your vehicle.
Do not put any part of your body underneath the vehicle when it is sup-
ported only by the floor jack.
Always use floor jack and/or automotive jack stands on a solid, flat, level
surface.
Do not start the engine while the vehicle is supported by the floor jack.
Stop the vehicle on level, firm ground, firmly set the parking brake and
shift the shift lever to P.
Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage
the vehicle and may cause the vehicle to fall off the floor jack.
Do not raise the vehicle while someone is in the vehicle.
When raising the vehicle, do not place any object on top of or underneath
the floor jack.
Lift up the vehicle using a floor jack
such as the one shown in the illustra-
tion.

6646-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
CAUTION
Used engine oil
Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care should
be taken to avoid prolonged and repeated contact. To remove used engine
oil from your skin, wash thoroughly with soap and water.
Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, service station or auto parts store for information
concerning recycling or disposal.
Do not leave used engine oil within the reach of children.
NOTICE
To prevent serious engine damage
Check the oil level on a regular basis.
When replacing the engine oil
Be careful not to spill engine oil on the vehicle components.
Avoid overfilling, or the engine could be damaged.
Check the oil level on the dipstick every time you refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

6806-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
The initialization operation (vehicles with the tire pressure warning system)
Make sure to carry out initialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
If you have accidentally turned the engine switch off during initialization, it
is not necessary to press the reset switch again as initialization will restart
automatically when the engine switch has been turned to IGNITION ON
mode for the next time.
If you accidentally press the reset switch when initialization is not neces-
sary, adjust the tire inflation pressure to the specified level when the tires
are cold, and conduct initialization again.
Warning performance of the tire pressure warning system (if equipped)
The warning of the tire pressure warning system will change in accordance
with the conditions under which it was initialized. For this reason, the system
may give a warning even if the tire pressure does not reach a low enough
level, or if the pressure is higher than the pressure that was adjusted to when
the system was initialized.
When initialization of the tire pressure warning system has failed (vehicles
with the tire pressure warning system)
Initialization can be completed in a few minutes. However, in the following
cases, the settings have not been recorded and the system will not operate
properly. If repeated attempts to record tire inflation pressure settings are
unsuccessful, have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
When operating the tire pressure warning reset switch, the tire pressure
warning light does not blink 3 times.
After carrying out the initialization procedure, the tire pressure warning
light blinks for 1 minute then stays on after driving for 10 minutes.