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4-5. Using the driving support systems
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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.
■
Operating conditions of hill-start assist control (vehicles with a hill-start
assist control system)
When the following four conditions are met, the hill-start assist control will
operate:
The shift lever is in a position other than P or N (when starting off forward/
●
backward on an upward incline).
The vehicle is stopped.
●
The accelerator pedal is not depressed.
●
The parking brake is not applied.
●
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Automatic system cancelation of hill-start assist control (vehicles with a
hill-start assist control system)
The hill-start assist control will turn off in any of the following situations:
The shift lever is shifted to P or N.
●
The accelerator pedal is depressed.
●
The parking brake is applied.
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Approximately 2 seconds elapse after the brake pedal is released.
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WARNING
■
The ABS does not operate effectively when
The limits of tire gripping performance have been exceeded (such as
●
excessively worn tires on a snow covered road).
The vehicle hydroplanes while driving at high speed on wet or slick roads.
●
■
Stopping distance when the ABS is operating may exceed that of nor-
mal 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, especially in the
following situations:
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 uneven surfaces
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SIENNA_OM_01999-08001_(U)
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Table of Contents
Troubleshooting
