Lexus LS460 2011 Owner's Manual page 366

2-4. Using other driving systems

Conditions affecting VGRS operations
In the following situations, the center position of the steering wheel may
change. However, the position will return to normal after the conditions are
improved.

When the steering wheel has been operated quickly or operated for an
extended period of time while the vehicle is stopped or is moving very
slowly

When the steering wheel has been held fully to the left or right

When the battery is low or the voltage temporarily drops

After the engine is started at lower than -30°C (-22°F)

Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating 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 engine
off. The EPS system should return to normal within 10 minutes.

If the slip indicator comes on
It may indicate a malfunction in the VSC, TRC and hill start assist control
function. (P. 687)
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