engine cover Lexus IS250 2011 User Guide

439
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Preparing a replacement light bulb
Check the wattage of the light bulb being replaced. ( →P. 5 2 4 )
■ Removing the engine compartment cover
→ P. 388
■ Front bulb locations
Parking lights (vehicles with
halogen headlights)
Headlight high beam and daytimerunning lights (vehicles with halogen headlights)
Headlight high beam
(vehicles with discharge
headlights)

5
When trouble arises
475
5-2. Steps to take in an emergency
IS350/250_U
Indicates that engine oil
level is low.Check the level of engine
oil, and add if necessary.
(U.S.A. only)
Indicates that the engine
oil is scheduled to be
changed.
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset.)
(U.S.A. only)
Indicates that the engine
oil should be changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).
(If equipped)
Indicates that intuitive
parking assist is dirty or
covered with ice.
Clean the sensor.
Wa r n i n g m e s s a g eDetailsCorrection procedure

486
5-2. Steps to take in an emergency
IS350/250_U
■When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated. Also, if you
replace the compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front 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 vehi-
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( →P. 4 0 2 )
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to replace the tire.
STEP1
STEP2
STEP3

5
When trouble arises
491
5-2. Steps to take in an emergency
IS350/250_U
If the shift lever cannot be shifted from P∗
If the shift lever cannot be shifted with your foot on the brake, there may be
a problem with the shift lock system (a system to prevent accidental opera-
tion of the shift lever). Have the vehicle inspected by your Lexus dealer
immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Set the parking brake.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent.
Press the shift lock override but-
ton.
The shift lever can be shifted
while the button is pressed.
STEP1
STEP2
STEP3
STEP4
STEP5
∗: If equipped

5
When trouble arises
493
5-2. Steps to take in an emergency
IS350/250_U
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Use the mechanical key built in to the electronic keys to operate the
doors. (→P. 2 5 )
Doors Remove the cover on the driver’s
door handle.
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→ P. 32) or the electronic key cann ot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2

498
5-2. Steps to take in an emergency
IS350/250_U
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s
battery is discharged.
You can call your Lexus dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your Lexus following the steps
below.
Remove the engine compartment covers. ( →P. 388)
Connecting the jumper cables.
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in the
illustration. Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
STEP1
STEP2
STEP3
STEP4

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When trouble arises
501
5-2. Steps to take in an emergency
IS350/250_U
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( →P. 388)
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fans are not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.STEP1
STEP2
STEP3
STEP4
STEP5

567
Alphabetical index
IS350/250_U
Engine compartment cover............. 388
Engine coolantCapacity...................................................515
Checking ............................................... 392
Preparing and checking before winter ......................................195
Engine coolant temperature gauge ........................................................ 151
Engine immobilizer system ................. 85
Engine oil Capacity................................................... 512
Checking ............................................... 389
Preparing and checking before winter ......................................195
Engine oil maintenance data ............. 391
EPS...............................................................185
Event data recorder............................ 459
First-aid kit storage belt......................347
Floor mat.................................................. 346
Fluid Brake ....................................................... 394
Washer ................................................... 399
Fog lights
Switch ........................................................168
Wattage ................................................. 524
Footwell lights.......................................... 315
Front fog lights Switch ........................................................168
Wattage ................................................. 524 Front passenger occupant
classification system .......................... 104
Front passenger's seat belt reminder light...................................... 463
Front seats Adjustment .................................................51
Driving position memory ..................53
Front turn signal lights
Switch.........................................................147
Wattage ..................................................524
Fuel Capacity .................................................... 511
Fuel gauge................................................ 151
Fuel pump shut off system............ 458
Gas station information ..................576
Information ............................................525
Refueling.................................................... 82
Fuel door ..................................................... 82
Fuel filler door ........................................... 82
Fuel pump shut off system.................458
Fuses .......................................................... 423
Garage door opener ......................... 350
Gas station information...................... 576
Gauges ........................................................151
Glove box ................................................320
Glove box light ......................................320
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