2012 Lexus LFA Owners Manual - Page 451

2012 Lexus LFA Manual

Shifting

Section	Page
Front	1
TOC	4
Pictorial Index	8
Foreword	17
Key information	21
Opening, closing and locking the doors	23
Adjustable components seats, mirrors, steering wheel	33
Opening and closing the windows	47
Refueling	50
Theft deterrent system	54
Safety information	60
Driving procedures	88
Instrument cluster	116
Operating the lights and windshield wipers	158
Using other driving systems	163
Driving information	176
Using the air conditioning system and defogger	185
Using the audio system	201
Using the interior lights	206
Using the storage features	208
Other interior features	212
Maintenance and care	226
Maintenance	238
Do-it-yourself maintenance	245
Essential information	301
Steps to take in an emergency	311
Specifications	356
Customization	381
Initialization	384
Reporting safety defects for U.S. owners	385
Abbreviation list	396
Alphabetical index	398
What to do if...	411
Gas Station Information	414
Inside the LFA	415
Warranty and Services Guide	539
Basic Information Before Operation	623
Navigation System: Destination Search	659
Navigation System: Route Guidance	685
Navigation System: Memory Points	707
Telephone and Information	727
Lexus Enform With Safety Connect	749
Audiovideo System	777
Setup	859
Appendix	933
Introduction	947
Important Information About This Manual	949
Quick Guide	951
Quick Reference	963

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Shifting

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Dry single-plate clutch

A dry single-plate clutch has been adopted to enable a direct engagement feel. The

clutch in the LFA is a hydraulically

actuated unit controlled by the ECU in order to

ensure quick and precise operation.

A pump within the hydraulic power unit generates the hydraulic pressure needed

to operate the clutch. This pump is powered by an electric motor to ensure a stable

supply of hydraulic pressure. In some cases, one can hear the sound of this electric

motor operating prior to the engine starting. This operation provides the hydraulic

pressure needed to disengage the clutch prior to starting the engine.

Because the LFA employs a dry single-plate clutch, it will not exhibit the slow speed

creep associated with a conventional automatic transmission. The driver must normally

depress the accelerator pedal to accelerate, even in ultra-slow speed situations such

as a traf±c jam.

Diaphragm spring

Clutch disc

The clutch disc is a compact size [9.45

in. (240 mm) diameter] and features

friction material designed specifically

to comply with the engine’s high-output

characteristics. The clutch cover is

constructed from aluminum for a

precisely balanced, low-inertia design

that contributes to outstanding engine

response.