[Eazy]

Hi!
I have a Mazda 3 2017 and I wonder what happens if I disconnect the battery. For example, is the memory lost for the entertainment system (installed radio stations, bluetooth pairing)?

Anything special that needs t be reconfigured after I reconnect the battery again?

On my old Renault Megane i have to hold the power window buttons up for 10 seconds for the power windows to work correctly.

 

[Mitchell_A]

I did this the other day on my '17. Everything was still configured after reconnecting except:

- had to set bass and treble again,
- had to retrain auto driverside window function (there's lots of posts on this site about how to do it)
- total avg fuel economy was erased

 

[Eazy]

Thanx a lot!
The auto window fix seems to be: "To fix the auto window feature simply hold the button up for 5 sec and then press down for 5 sec."

Doing a major audio upgrade and need to connect a power cable somehow on the positive battery terminal.