Toyota Highlander 2020, Owner'S Manual

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4-5. Using the driving support systems
HIGHLANDER_U
when the system is fully off.
■
When the downhill assist con-
trol system is operated continu-
ously
This may cause the brake actuator
to overheat. In this case, the down-
hill assist control system will stop
operating, a buzzer will sound and
the downhill assist control system
indicator will start flashing, and
“Traction Control Turned OFF” will
be shown on the multi-information
display. Refrain from using the sys-
tem until the downhill assist control
system indicator stays on and the
message goes off. (The vehicle can
be driven normally during this time.)
■
Sounds and vibrations caused
by the downhill assist control
system
●
A sound may be heard from the
engine compartment when the
engine is started or just after the
vehicle begins to move. This
sound does not indicate that a
malfunction has occurred in down-
hill assist control system.
●
Either of the following conditions
may occur when the downhill
assist control system is operating.
None of these are indicators that a
malfunction has occurred.
• Vibrations may be felt through the
vehicle body and steering.
• A motor sound may be heard after
the vehicle comes to a stop.
■
System malfunction
In the following cases, have your
vehicle checked by your Toyota
dealer.
●
The downhill assist control system
indicator does not come on when
the engine switch is turned to ON.
●
The downhill assist control system
indicator does not come on when
the “DAC” switch is pressed.
●
The slip indicator comes on.
WARNING
■
The system may not operate
on the following surfaces,
which may lead to an acci-
dent causing death or serious
injury
●
Slippery surfaces such as wet
or muddy roads
●
Icy surface
●
Unpaved roads