Vdim - Lexus LFA Owner's Manual

Operating the driving mode selector switch

VDIM

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The LFA employs VDIM (Vehicle Dynamics Integrated Management), a dynamic
control program that integrates braking and drive torque control to help ensure
overall vehicle stability and secure handling. VDIM also features vertical acceleration
and roll rate sensors, added exclusively for the LFA. The addition of these sensors
increases the precision and response of road camber estimation on banked roads,
such as "The Carousel" at the Nürburgring, to determine the vehicle's performance
limits. This prevents excessive intervention on banked roads.
The LFA's VDIM system allows for two individual control modes selected by the driver
using the driving mode selector switch.
When in SPORT mode, VDIM control is modified in order to enhance driving
pleasure and the driver's confidence in the vehicle.
When not in SPORT mode, VDIM returns to NORMAL mode, designed to intervene
seamlessly as the vehicle reaches its performance limits, thereby realizing smoother
driving dynamics.
This helps ensure both overall vehicle stability and secure handling.
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