My 2017 M3 hatchback started having intermittent glitches with the backup camera. This happened around Oct. 2019.
Most of the time the problem would go away after a while. Sometimes I had to disconnect the battery to fix it.
On Monday (2 March 2020) the car went to the dealer.
They said one harness and a control module needs to be replaced and that Mazda wants them to send the bad parts to CA for analysis????????
They have a module here in Houston but have to wait for the new harness to come from CA.
I will update when the car is fixed(if this solves the problem.)
One of the 4400!