[JimC]

Our 2014 does this same shift to white periodically too. Doesn't matter what color we set it to. I thought it might be the different key fobs and maybe switched based upon whether it was my wife's or mine. But that doesn't seem to be the case.

My 2013 Mustang doesn't change. It stays on whatever color setting I choose.

 

[JimC]

I stopped by the dealer last week and had the TSB done. So far it hasn't gone back to white

 

[JimC]

So far no problems with the fix. Still staying on what we set it to.

 

[JimC]

I haven't had any more problems with the ambient lights since the update. Looks like it fixes it