How do some of the AM automatically change back the time when you start the car? Is it thru the GPS because my other car with GPS doesn’t change the clock. You have to manually fall back.

 

From the user guide. In the GPS unit there is a setting to set the time or to choose automatic. Since this is in the GPS unit, I presume that the time comes from the satellites. I've never set the time on my car and it is always spot-on : -

"[7] CLOCK:

SportShift II transmission.

• Vehicles with no satellite navigation:
To set the time press MENU. Go to <Car settings...> Enter <Clock>.

• Vehicles with Garmin satellite navigation:
To set the time press NAV. Use the satellite navigation screen and go to <Settings> Enter <Time>. "

 

I have a Rapide with a Garmin and this doesn't work for me.

 

Dealer can fix the time. My clock gets about 10 minutes too fast and they have a way to adjust it.