I just recently swapped out car battery in my 2006 Suzuki Forenza, and learned in another thread that the radio may reset and require a code to activate it in such cases. I left the car w/o battery installed at least over a day before I put new one in. So I’d imagine the radio would have reset by then.
However, when I started up car with new battery, radio did not require any code, it just worked.
So I’m wondering:
are not all (recent) cars (rather most but not all) programmed with that reset functionality? And I got lucky to be one of those?
is the reset code feature only for removable radios? The small rectangular ones that look like you can buy at automotive audio shop (or section of electronics store), which can be swapped for another model/brand, etc.? Or does it also apply to the radio types that look like they’re custom integrated to the car? Because mine was that type, a larger square with build in CD player mounted into the dash, it didn’t really look removable as a swappable component, looked more integrated to me.
is this reset feature only started in certain model year of cars like OBDII is only in cars since 1996, etc.?