climate control lexus LFA 2012 Technical Information / LEXUS 2012 LFA OWNERS MANUAL (OM77006U)

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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 pre-
vailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine coolant
• Washer fluid
● Have the vehicle fitted with four snow tires.
Ensure that all tires are the specified size and the same brand.
■Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a window or move a wiper that is frozen.
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 accumulated on the air inlet vents in front
of the windshield.
● Remove any ice that has accumu lated 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.
■ When driving the vehicle
Accelerate the vehicle slowly and driv e at a reduced speed suitable to
road conditions.

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3-1. Using the air conditioning system and defogger
3
Interior features
Displaying the operation screen
Press the “MENU” button.
Select “Climate” by operating the
Remote Touch knob and then
press the enter button.
Driver's side temperature dis-
play
Outside temperature display
Dual mode switch
Passenger’s side temperature
display
Air outlet switches
Fan speed control switches
Cooling and dehumidification
function on/off switch
Talk switch
Passenger's side temperature
control button
Automatic mode button
Outside/recirculated air mode
button
Enter button
Remote Touch knob
“MENU” button
Windshield defogger button
Driver’s side temperature con-
trol button
“OFF” button
STEP1
STEP2

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6-1. Specifications
6
Vehicle specifications
Uniform Tire Quality GradingThis information has b een prepared in accordance with regulations
issued by the National Highway Traf fic Safety Administration of the U.S.
Department of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer an y questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must co nform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A
■ Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as
well on the government course as a tire graded 100.
The relative performance of tires de pends upon the actual conditions of
their use, however, and may depart significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.