Hyundai ELANTRA 2021 Owner's Manual page 457

Driver assistance system
Warning Timing
With the Engine Start/Stop button in the
ON position, select 'Driver Assistance →
Warning Timing' from the Settings menu
to change the initial warning activation
time for Reverse Parking Collision-
Avoidance Assist.
When the vehicle is first delivered,
Warning Timing is set to 'Normal'. If you
change the Warning Timing, the warning
time of other Driver Assistance systems
may change.
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Warning Volume
With the Engine Start/Stop button in the
ON position, select 'Driver Assistance →
Warning Volume' from the Settings menu
to change the Warning Volume to 'High',
'Medium', 'Low' or 'Off' for Reverse
Parking Collision-Avoidance Assist.
However, when Warning Volume is
turned off, the steering wheel vibration
function will turn on if it was turned off.
If you change the Warning Volume,
the Warning Volume of other Driver
Assistance systems may change.
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