Hi Amy & Luis;
This was my suggestion to Amy in Her other Post but it Applies to both of your Situations. Good-Luck !!!!!
Hi Amy;
I'll get right to the Point on this.
There is only (IMO) In-My-Opinion one way this is going to get Corrected.
Amy, Your car is going to {Have-To} be doing this Strange Shifting thing so that you can get,
the (Service-Manager) or (Service-Director) to go for a Ride (With-You) so you can show
Them what is going on.
If you cannot get the car to show these every once in awhile Shifting-Smyptoms you will not get this Problem Resolved. The Techs. in most cases do not have the time to drive a persons vehicle long enough to show something like this up. They will drive it and if it is Performing as they know it should, there is nothing they can do at that point to Fix/Repair something that is not showing anything is Wrong.
Amy; if you will do as I have outlined in
{Green} above you will get your vehicle repaired.
Good-Luck:
Terry
BTW; Amy I have worked at a Dealership for the past 10-Years.