Lexus IS220d 2012 Manual page 240

2-4. Using other driving systems
CAUTION

The ABS does not operate effectively when

The limits of tire gripping performance have been exceeded.

The vehicle hydroplanes while driving at high speed on the wet or slick
road.

Stopping distance when the ABS is operating may exceed that of normal
conditions
The ABS is not designed to shorten the vehicle's stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following sit-
uations.

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

TRC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC system is operating.
Do not drive the vehicle in conditions where stability and power may be
lost.

Hill- start assist control does not operate effectively when (vehicles with an
automatic transmission)
Do not overly rely on the hill-start assist control. The hill start assist control
may not operate effectively on steep inclines and roads covered with ice.

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 particu-
lar care when the indicator light flashes.

When TRC 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 TRC and VSC unless necessary.
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