The day after I got mine I went on a road trip up to Door County with my wife for a romantic weekend. We went to a drive in movie theater and the car automatically shut off after, I think it was around 30 minutes, on accessory mode. When it happened, I freaked out, thinking I had somehow killed the battery already. I didn't, but I started it up and let it run for a while to charge it up a bit just in case.
I haven't bothered to read up on how to change this function.
As far as run time goes, I imagine this largely depends if you have the Bose system or not.
Got to admit I am really, really glad this was added to the CX3. With my previous car (a tricked out Subaru Forester Limited) I had my battery go flat and unable to start the car on three different occasions. In each case I discovered that I had left the map light on (not LED) when I left the car and the battery was totally flat the next morning. So far with the CX3 I found that I had the map light on when I started the car on at least one cold morning - no problem!
Want to replace the stock speakers in my daughter's 2019 CX-3 and cannot find any video on how to do that on this specific year model. I've seen quite a few on older CX-3 or Mazda 3, but 2019 does not have the same door configuration so I don't know where the 2 screws are or how to...