Acura TLX 2023 Owner's Manual page 504

uuParking Your VehicleuCross Traffic Monitor
502
* Not available on all models
*
*
1Cross Traffic Monitor
For proper operation, always keep the rear bumper
corner area clean.
Do not cover the rear bumper corner area with labels
or stickers of any kind.
The parking sensor system's alerting buzzer overrides
the Cross Traffic Monitor buzzer when the sensors
are detecting obstacles at the closest range.