I'd just discovered another nice feature on my 2.3L 5dr Mazda 3. Last night, I didn't close the driver's door completely, so the ceiling interior light was turned on. I came back after a while (approx. 30 min.) and notice that there was no ceiling light illuminated. I opened the driver door again, and then the light was on as normal. I think the system turned off that light after a period of time. This is a nice feature !
Mazda 3 - another nice feature
