See also:

Trailer tow false alerts
When towing a trailer, the sensors may detect the trailer thus causing a false alert. It may be desirable to turn the BLIS off if the false alerts become annoying. ...

Underbody
Flush the complete underside of your vehicle frequently. Keep body and door drain holes free from packed dirt. ...

CTA and reverse sensing system (RSS) interaction
CTA works along with the reverse sensing system (RSS) (if equipped). Become familiar with the warning tones of both systems. ...