2009 Lexus IS250 stop start

267
3-5. Other interior features
3
Interior features
08_IS350/250_U_(L/O_0808)
■The seat heaters can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■When not in use
Set the dial to “0”. The indicator light turns off.
Vehicles with a manual transmissionHeats the seats
The indicator light comes on.
The higher the number, the
warmer the seats become.Front
passenger’s
seat
Driver’s
seat

270
3-5. Other interior features
08_IS350/250_U_(L/O_0808)
■The seat heaters and ventilators can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■When not in use
Set the dial to “0”. The indicator light turns off.
Vehicles with a manual transmissionHeats the seats
The indicator light (amber)
comes on.
The higher the number, the
warmer the seats become.
Blows air from the seats
The indicator light (green)
comes on.
The higher the number, the
stronger the airflow becomes.
Driver’s
seatFront
passenger’s
seat

273
3-5. Other interior features
3
Interior features
08_IS350/250_U_(L/O_0808)
Rear sunshade

■Reverse operation feature
To ensure adequate rear visibility, the sunshade automatically lowers when the gear
is shifted to R.
However, the rear sunshade is raised again if either of the following occurs:
●The switch is pressed again.
●The shift lever is shifted out of R, and the vehicle reaches a speed of 9 mph (15
km/h).
If the engine is turned 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 9 mph (15 km/h). To raise the sunshade
again, press the switch.
■The rear sunshade can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode.
The rear sunshade can be raised and lowered by operating the switch
shown below.
Raise/lower

: If equipped

306
4-3. Do-it-yourself maintenance
08_IS350/250_U_(L/O_0808)
CAUTION
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (

P. 3 1 9 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner
Driving with the air filter removed may cause excessive engine wear due to dirt in
the air. Also a backfire could cause a fire in the engine compartment.

309
4-3. Do-it-yourself maintenance
4
Maintenance and care
08_IS350/250_U_(L/O_0808)
CAUTION
■When raising your vehicle
Make sure to observe the following to reduce the possibility of death or serious
injury.
●Do not use the jack that was supplied with your vehicle.
●Do not put any part of your body or get underneath the vehicle supported only by
the floor jack.
Always use automotive jack stands on a solid, 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 put the shift
lever in P (automatic) or R (manual).
●Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage the vehi-
cle 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 objects on top of or underneath the
floor jack.
●Lift up the vehicle using a floor jack such as
the one shown in the illustration.

316
4-3. Do-it-yourself maintenance
08_IS350/250_U_(L/O_0808)
■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds and fre-
quent acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumption, keep in mind that the oil may
have become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 lmp.qt./600 miles (1.0 L per 1000
km)
●If you consume more than 1.1 qt. (1.0 L, 0.9 lmp.qt.) every 600 miles (1000 km),
contact your Lexus dealer.
■After changing the engine oil (U.S.A. only)
The oil change system should be reset. Perform the following procedures:Switch the display to the odometer (

P. 142) when the engine is running.
Turn the “ENGINE START STOP” switch OFF.
While pressing the trip meter reset button, set the “ENGINE START
STOP” switch to the IGNITION ON mode (but do not start the engine
because otherwise the reset mode will be cancelled). Continue to press
and hold the button until the trip meter displays 000000.
CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation or 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 dis-
pose of used oil and filters in household trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
08_IS350/250_U_(L/O_0808)■
Checking battery condition
Check the battery condition using the indicator color.
Blue: Good condition
Red: Not working properly,
have the battery checked by
your Lexus dealer.
White: Charging is necessary.
Have the vehicle inspected by
your Lexus dealer.
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.
■After recharging/reconnecting the battery
In some cases, the engine may not start. Follow the procedure bellow to initialize
the system.Shift the shift lever to “P” (automatic transmission) or depress the brake
pedal with the shift lever in N (manual transmission), and turn the
“ENGINE START STOP” switch OFF.
Open and close any of the doors.
Start the engine. (If the engine does not start first time, repeat the proce-
dure.)
If the engine will not start even after multiple attempts at the above method, contact
your Lexus dealer.
STEP1
STEP2
STEP3

328
4-3. Do-it-yourself maintenance
08_IS350/250_U_(L/O_0808)■
How to initialize the tire pressure warning system
To initialize the system, use the satellite switch. (
P. 2 6 0 )
Park the vehicle in safe place and turn the “ENGINE START
STOP” switch OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (
P. 4 3 9 )
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
The tire inflation pressure initial-
ization setting display
Continue to press
or  until the
initialization setting display
appears.
It may take several minutes to com-
plete the setting. Wait for several
minutes before turning the
“ENGINE START STOP” switch to
OFF if necessary.
STEP1
STEP2
STEP3
STEP4