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4-5. Using the driving support systems
vehicle is driving around a curve, warnings
will occur earlier than during straight-lane
driving.
When the system determines that the
●
driver is driving without holding the steer-
ing wheel while the system is operating
If the driver continues to keep their hands
off of the steering wheel, the buzzer
sounds, the driver is warned and the func-
tion is temporarily canceled. This warning
also operates in the same way when the
driver continuously operates the steering
wheel only a small amount.
The buzzer also sounds even if the alert
type is set to
When the system determines that the
●
vehicle may not turn and instead depart
from its lane while driving around a curve
(vehicles with Lexus Safety System +)
When the system determines that the
●
driver is driving without holding the steer-
ing wheel while the steering wheel assist
of the steering assist function is operating
(vehicles with Lexus Safety System +)
If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer
sounds and the driver is warned. Each time
the buzzer sounds, the continuing time of
the buzzer becomes longer.
The buzzer also sounds even if the alert
type is set to
In situations such as the following, the sys-
tem may not be able to detect when the
driver's hands are on the steering wheel
(vehicles with Lexus Safety System + A):
LS500h_OM_General_OM50J66E
.
.
If a steering wheel cover is installed.
●
If the driver is wearing gloves.
●
If something is attached to the steering
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wheel.
If the driver is gripping the wood trim,
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stitched area, spokes, or other part of the
steering wheel that does not have sen-
sors.
In situations such as the following, the hands
off steering wheel alert may not operate
and the steering assist function and lane
centering function may operate even if the
driver's hands are off the steering wheel
(vehicles with Lexus Safety System + A):
If an object contacts the steering wheel.
●
If a wide object or arms are held in front
●
of the steering wheel.
Vehicle sway warning function
■
When the system determines that the vehi-
cle is swaying while the vehicle sway warn-
ing function is operating, a buzzer sounds
and a warning message urging the driver to
rest and the symbol shown in the illustration
are simultaneously displayed on the
multi-information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.
Warning message
■
If the following warning message is dis-
played on the multi-information display and
the LTA indicator illuminates in orange, fol-
low the appropriate troubleshooting proce-
dure. Also, if a different warning message is
displayed, follow the instructions displayed
on the screen.
"LTA Malfunction Visit Your Dealer"
●
The system may not be operating properly.
Have the vehicle inspected by your Lexus
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