To me, that's just plain bad design. If they can detect a double press when shutting down and throw a code, why not simply shut the car off instead of going back into ACC? If someone MEANT to go straight from READY to ACC, they will still be sitting there and will simply be slightly annoyed. They can just press it again to get there. The opposite is not so forgiving. If someone MEANT to shutdown and instead double pressed, then they are not there to see that they have left the car on.Phatcat73 wrote:Apparently there was a code logged for double pressing the start button when you're shutting off the car?
Well, for whatever reason, perhaps just one of mathematical completeness, the engineers designed the car so you can go directly from any state to any other state. See this post where I spelled that out. In particular, single press without the brake cycles you from OFF -> ACC -> ON -> OFF as most of us are aware. Double press without the brake does the same thing in the opposite order: OFF -> ON -> ACC -> OFF. READY state is not part of either of those cycles, but is treated as ON for the purpose of entering the cycle.RegGuheert wrote:To me, that's just plain bad design. If they can detect a double press when shutting down and throw a code, why not simply shut the car off instead of going back into ACC?
It seems clear that the car should NEVER go straight from READY to ACC.
Yet another design decision that I have to wonder about. They may not want to run down the traction battery, but they could put limits on that.DanBaldwin wrote:Out of curiosity I checked my 2012 SL, and it doesn't run the dc/dc converter in accessory mode, or in on mode, only in ready mode.