N the abs does not operate effectively when, L when driving with tire chains, L when driving over bumps in the road – TOYOTA 2011 Yaris Sedan User Manual
Page 158: N when vsc is activated, N trac may not operate effectively when, N replacing tires, N handling of tires and suspension
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2-4. Using other driving systems
2
Wh
en drivin
g
CAUTION
n
The ABS does not operate effectively when
l
Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
l
The vehicle hydroplanes while driving at high speed on the wet or slick
road.
n
Stopping distance when the ABS is operating on the wet or slick roads
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 situ-
ations.
l
When driving on dirt, gravel or snow-covered roads
l
When driving with tire chains
l
When driving over bumps in the road
l
When driving over roads with potholes or uneven roads
n
When VSC is activated
The slip indicator flashes and a warning buzzer sounds. Always drive care-
fully. Reckless driving may cause an accident. Exercise particular care when
the indicator flashes and a buzzer sounds.
n
TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if TRAC is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
n
Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total
load capacity. In addition, make sure that the tires are inflated to the appro-
priate tire pressure level.
The ABS and VSC will not function correctly if different tires are fitted on the
vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.
n
Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause the system to malfunction.