@Marky Cielo , there are limitations as to what our vehicles can withstand, just make sure that you use gentle chemicals, soft brushes, and low-pressure water to avoid damaging electric components and other parts.
It is best if you let your local dealer do the scanning so you will know what causes the error on your parking sensor. It is hard to guess things with these electronic cars.
Loose connection and damaged wire causes malfunction all the time. But a routine maintenance will really give you a peace of mind, especially when you are in for a long haul. Happy to know your dealer figured it out.