2012 Lexus HS250h tires

1
2
3
4
5
6
7
HS250h_U_75050U
5
3-6. Using the storage featuresList of storage features............... 377
• Glove box .................................... 378
• Console box ................................ 379
• Cup holders.................................. 381
• Bottle holders ............................ 383
• Auxiliary boxes.......................... 384
3-7. Other interior features Sun visors........................................ 385
Vanity mirrors ............................... 386
Clock ................................................. 387
Power outlets ................................ 388
Seat heaters and ventilators .................................... 389
Armrest ............................................. 391
Rear sunshade ............................... 392
Floor mat.......................................... 394
Trunk compartment features.......................................... 396
Garage door opener................. 398
Compass.......................................... 404
Safety Connect ............................ 408
4-1. Maintenance and care Cleaning and protecting the vehicle exterior.................... 416
Cleaning and protecting the vehicle interior .................... 420 4-2. Maintenance
Maintenance requirements ..... 423
General maintenance ................ 426
Emission inspection and maintenance (I/M)
programs ..................................... 430
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................... 431
Hood ................................................. 434
Positioning a floor jack............... 435
Engine compartment.................. 437
12-volt battery................................ 447
Tires .................................................... 451
Tire inflation pressure................. 459
Wheels ............................................. 462
Air conditioning filter.................. 464
Electronic key battery ................ 467
Checking and replacing fuses ................................................ 469
Light bulbs ........................................ 481
5-1. Essential information Emergency flashers .................... 494
If your vehicle needs to be towed ....................................... 495
If you think something is wrong .............................................. 501
4Maintenance and care5When trouble arises

HS250h_U_75050U
9
Tail lights P. 191
Rear window defogger P. 274
Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 451
P. 532
P. 567
P. 572Side marker lights P. 191
Fuel filler door P. 97
Turn signal lights P. 166
License plate lights
P. 191
Doors P. 61Trunk P. 64

41
1-1. Hybrid system
1
Before driving
HS250h_U_75050U
■Air conditioning
Use the air conditioning only when necessary. Doing so can help control
excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing so
will help to reduce the burden on the air conditioner and reduce fuel con-
sumption as well.
In winter: Because the gasoline engine will not automatically cut out until
the gasoline engine and the interior of the vehicle are warm, it will con-
sume fuel. Also, fuel consumption can be improved by avoiding overuse of
the heater.
■ Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper tire
inflation pressure can cause poor fuel consumption.
Also, as snow tires can cause large amounts of friction, their use on dry
roads can lead to poor fuel consumption. Use a tire that is appropriate for
the season.
■Luggage
Carrying heavy luggage can lead to poor fuel consumption. Avoid carry-
ing unnecessary luggage. Installing a large roof rack can also cause poor
fuel consumption.
■Warming up before driving
Since the gasoline engine starts up and cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short
distances will cause the engine to repeatedly warm up, which can lead to
poor fuel consumption.

143
2-1. Driving procedures
2
When driving
HS250h_U_75050U
Starting off on a steep uphillMake sure that the parking brake is set securely, and then select
shift position D.
Check that the shift position indicator shows D.
Gently depress the accelerator pedal.
Release the parking brake.
■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 the tires and the road surface, preventing
the steering and brakes from operating properly.
■Breaking in your new Lexus
To extend the life of the vehicle, observing the following precautions is recom-
mended:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 994 miles (1600 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• 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 shoes periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down operation.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
correct fuel. ( →P. 5 6 2 )

146
2-1. Driving procedures
HS250h_U_75050U
CAUTION
●Do not shift the shift position to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift position to N while the vehicle is moving will disengage the
hybrid system. Engine braking is not available with the hybrid system disengaged.
●During normal driving, do not turn off the hybrid system. Turning the hybrid sys-
tem 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 8
●Use engine braking (shift position B) 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. 160)
●Do not adjust the positions 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, resulting
in death or serious injury.
●Always check that all passengers' arms, heads or other parts of their body 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.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce
your ability to control the vehicle, resulting in an accident.
●Abrupt changes from shift position D to B and rapid changes in the engine speed
could cause the vehicle to skid, resulting in an accident.

235
2-4. Using other driving systems
2
When driving
HS250h_U_75050U
CAUTION
■Before using the LKA system
Do not rely on the LKA system to remain within a selected lane. The LKA system is
not designed to enable inattentive driving. The steering wheel should be operated
by the driver to maintain the vehicle in a suitable position within its lane. Always
drive carefully.
■Turn the LKA off while driving in any of the following conditions:
Do not use LKA in any of the following situations.
Otherwise, the system may not function correctly and could result in an accident.
●When driving with snow tires, tire chains, a spare tire, or similar equipment.
●When driving with non-standard parts or aftermarket equipment installed.
(including modified tires and suspensions, etc.)
●When towing a trailer.
●When there are objects or structures along the roadside that might be misinter-
preted as lane markers. (such as guardrails, curb, reflector posts, etc.)
●When there are wheel ruts, icy trademarks, etc. or if snow remains on the road
surface.
●When there are shadows on the road running parallel with lane markers, or if a
shadow covers the lane markers.
●When there are visible lines on the pavement from road repairs, or if the remains
of old lane markers are still visible on the road.
●When driving on slippery roads, such as those covered with rain, ice or snow.
●When driving in a lane other than the driving or passing lanes on a freeway or
highway.
●When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane.
●When driving on winding roads or roads that are rough or uneven.

241
2-4. Using other driving systems
2
When driving
HS250h_U_75050U
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from over-
heating when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from excessive
steering input or stop the vehicle and turn the hybrid system off. The EPS system
should return to normal within 10 minutes.
CAUTION
■The ABS does not operate effectively when
●Tires with inadequate gripping ability are used (such as excessively worn tires on
a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick road.
■Stopping distance when the ABS is operating may exceed that of normal condi-
tions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or roads with uneven surfaces
■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. Exercise particular care when the indicator light flashes.
■When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are the systems to ensure vehicle stability and driving force, do not turn the
TRAC/VSC systems off unless necessary.

242
2-4. Using other driving systems
HS250h_U_75050U
CAUTION
■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
inflation pressure level.
The ABS and VSC systems will not function correctly if different tires are installed
on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause a system to malfunction.