2012 Lexus IS250C tires

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3-6. Using the storage featuresList of storage fe atures................ 361
• Glove box .................................... 362
• Console box ................................ 363
• Cup holders................................. 364
• Auxiliary box ............................... 367
3-7. Other interior features Sun visors........................................ 368
Vanity mirror .................................. 369
Clock ................................................. 370
Satellite switches ........................... 371
Ashtrays ........................................... 374
Cigarette lighter ........................... 375
Power outlet ................................... 376
Seat heaters and ve ntilators .... 377
Floor mat......................................... 380
Trunk features................................. 381
Garage door opener................. 384
Compass......................................... 390
Safety Connect ............................. 394 4-1. Maintenance and care
Cleaning and protecting the vehicle exterior................... 402
Cleaning and protecting the vehicle interior .................... 407
4-2. Maintenance Maintenance requirements ...... 410
General maintena nce ................. 412
Emission inspection and maintenance (I/M)
programs ....................................... 415
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................... 416
Hood .................................................. 419
Positioning a floor jack............... 420
Engine compartment.................. 422
Tires ................................................... 437
Tire inflation pressure................. 447
Wheels .............................................. 451
Air conditioning filter.................. 453
Electronic key battery ................ 456
Checking and replacing fuses ............................................... 458
Headlight aim ................................ 473
Light bulbs ....................................... 475
4Maintenance and care

TABLE OF CONTENTSIndex
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5-1. Essential informationEmergency flashers.................... 486
If your vehicle needs to be towed ....................................... 487
If you think something is wrong ......................................... 493
Fuel pump shut off system ........ 494
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 495
If a warning message is displayed ...................................... 504
If you have a flat tire (vehicles with standard
tires) ................................................. 518
If you have a flat tire (vehicles with run-flat
tires) ................................................ 527
If the engine will not start .......... 529
If the shift lever cannot be shifted from P......................... 531
If you lose your keys .................... 532
If the electronic key does not operate properly .............. 533
If the vehicle battery is discharged .................................. 538
If your vehicle overheats ........... 542 If the vehicle becomes
stuck................................................ 545
If the retractable hardtop does not close............................. 547
If your vehicle has to be stopped in an emergency ...... 557
6-1. Specifications Maintenance data (fuel, oil level, etc.).................... 560
Fuel information ............................ 578
Tire information............................ 582
6-2. Customization Customizable features.............. 595
6-3. Initialization Items to initialize .......................... 600
Reporting safety defects for U.S. owners........................... 602
Seat belt instructions for Canadian owners
(in French) ................................... 603
SRS airbag instructions for Canadian owners
(in French) ................................... 606
5When trouble arises
6Vehicle specifications
7For owners

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Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 437
P. 518, 527
P. 572
P. 582
Tail lights P. 181
Trunk P. 51
Rear window defogger *1P. 257
Doors P. 47
Fuel filler door P. 95
Turn signal lights P. 162
Side marker lights P. 181
*1: For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.

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2-1. Driving procedures
■Starting off on a hill
Hill-start assist control will operate. (P. 2 1 9 )
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows
may become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, because the road surface will be especially
slippery.
●Refrain from high speeds when driving on an expressway in the rain, because
there may be a layer of water between th e tires and the road surface, preventing
the steering and brakes from operating properly.
■Engine speed while driving
In the following conditions, the engine speed may become high while driving. This is
due to automatic up-shifting control or do wn-shifting implementation to meet driv-
ing conditions. It does not indicate sudden acceleration.
●The vehicle is judged to be driving uphill or downhill
●When the accelerator pedal is released
■Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recommended to
observe:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake sys-
tem needs bedding-down of the brake shoe s periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down.

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2-1. Driving procedures
CAUTION
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D (vehicles with an automatic transmission) or 1
(vehicles with a manual transmission) while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift lever to N while the vehicle is moving will disengage the engine
from the transmission. Engine braking is not available when N is selected.
●During normal driving, do not turn off the engine. Turning the engine off while
driving will not cause loss of steering or braking control, but the power assist to
these systems will be lost. This will make it more difficult to steer and brake, so you
should pull over and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop
the vehicle in the normal way: P. 5 5 7
●Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill.
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. ( P. 1 5 4 )
●When stopped on an inclined surface, use the brake pedal and parking brake to
prevent the vehicle from rolling backward or forward and causing an accident.
●Do not adjust the position of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents that may
result in death or serious injury.
●Always check that all passengers' arms, heads or other parts of their bodies are
not outside the vehicle, as this may result in death or serious injury.
●Do not drive in excess of the speed limit. Even if the legal speed limit permits it, do
not drive over 85 mph (140 km/h) unless your vehicle has high-speed capability
tires. Driving over 85 mph (140 km/h) may result in tire failure, loss of control and
possible injury. Be sure to consult a tire dealer to determine whether the tires on
your vehicle are high-speed capability tires or not before driving at such speeds.

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2-4. Using other driving systems
CAUTION
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause
an accident, resulting in death or serious injury. Exercise particular care when the
indicator light flashes.
■When TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are systems to help enhance vehicle stability and driving force, do not turn off
TRAC and VSC unless necessary.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS, VSC and TRAC systems will not fu nction correctly if different tires are fit-
ted on the vehicle.
Contact your Lexus dealer for further info rmation when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.

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2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the specified size and the same brand, and that
chains match the size of the tires.
■ Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumul ated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.

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2-5. Driving information
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When driving
Selecting tire chainsThey cannot be mounted on 18-inch ti res. Use the correct tire chain size
when mounting the tire chains. Chain size is regulated for each tire sizes.
Side chain
(0.12 in. [3 mm] in diameter)
Cross chain
(0.16 in. [4 mm] in diameter)
Regulations on the use of tire chains
● Regulations regarding the use of tire chains vary according to location
and type of road. Always check local regulations before installing
chains.
● Install the chains on the rear tires.
● Retighten the chains after driving 1 /4  1 /2 mile (0.5  1.0 km).
■When driving the vehicle
Accelerate the vehicle slowly and dr ive at a reduced speed suitable
to road conditions.
■ When parking the vehicle (in the winter time or in the cold lati-
tudes)
Park the vehicle and move the shift lever to P (automatic transmis-
sion) or 1 or R (manual transmission) and block the wheel under the
vehicle without setting the parking brake. The parking brake may
freeze up, preventing it from being released. If necessary, block the
wheels to prevent inadvertent sliding or creeping.