Hi, My 2019 CX9 recently shows up issue with front parking sensor even after dealer had replaced with a new one. Need help to brainstorm on any ideas or suggestions. Thanks.

Here is the story. Front parking sensor on the right shows malfunction or disconnection when speed is below 5 miles per hours. It only happens when the car heated up for about 10-15 mins. Dealer checked with Mazda but still no clue yet. Tried to clean up with WD40 first and then dealer even replaced with a new parking sensor.

 

It yelled at me to BRAKE !!! then i had the car on cruise control and it accelerated instead of slowing down i almost hit someone when coming off the freeway
Help
Lynnette