Hyundai Palisade 2023 Owner's Manual page 534

Driver Assistance System
Reverse Parking Distance
Warning Malfunction and
Limitations
Parking Distance Warning
malfunction
After starting the vehicle, a beep will
sound when the gear is shifted to R
(Reverse) to indicate Parking Distance
Warning is operating properly.
However, if one or more of the following
occurs, first check whether the ultrasonic
sensor is damaged or blocked with
foreign material. If it still does not work
properly, have the vehicle inspected by
an authorized HYUNDAI dealer.
The audible warning does not sound.
The buzzer sounds intermittently.
The 'Ultrasonic sensor error or
blockage' warning message appears
on the cluster.
7-132
Parking Distance Warning disabled
If this occurs the 'Parking Distance
Warning system limited. Ultrasonic
sensor blocked' warning message
appears on the instrument cluster.
Parking Distance Warning will operate
properly when snow, rain or foreign
material is removed. If Parking Distance
Warning does not operate properly
after obstruction (snow, rain, or foreign
material) is removed (including trailer,
carrier, etc., from the rear bumper), have
the vehicle inspected by an authorized
HYUNDAI dealer.
B0377EU01
B1103EU01
B0377EU03