A few that have hit me in the first two months owning my CPO 60...
Phone
When calling someone, I'd like the display to not say "Dialing..." -- so irritating. Should say "Calling..." or anything but Dialing. Unless this is an intentional nod to analog technology, it's dumb. No one has dialed a phone since before phones became mobile. My Volt used the same term and I thought it was particularly dumb. (With Chevy I just figured someone didn't think about it. I'm giving Tesla the benefit of the doubt that they actually thought this through.)
Ending a call should be a single click rather than two. Maybe I'm doing something wrong...
Internet Browser
Tesla should build a simple home page that is useful, perhaps with large tiles/icons for apps you might want quick access to such as weather, sports scores, food, movies, hotels, etc. Maybe open this API to app developers...
Radio
Speed sensitive volume option.
More user-friendly way to access and sort favorites. I mostly listen to Slacker stations, but every day I have to scroll down past AM, FM, etc. favorites to get to the Slacker favorites. And then they are listed in the order in which I favorited them. Maybe this could be tabs so I can just see Slacker or FM favorites alone. Perhaps make them tiles instead of a list so more fit on one page (half screen).
"Back" arrow button to go back (or forward) to a previous station I was listening to, enabling switching back and forth between a few favorites.
Leave radio state (on/off) as it was when I left the vehicle. Or give me a choice. But it's annoying to get into the car in the morning and have the music start playing at volume from the night before, even though I pressed pause before exiting.
Profile Settings
Give me the option to lock my profile/settings so it can't be changed accidentally. Either require me to tap twice to change if I decide to lock, or use a pass code. And save my profile so that if it does get changed I can reload my saved profile.
Nav
Need to add some more logic to the Supercharger routing and trip planning. I'm sure many of you have experienced these...
1. Did not have enough charge to make it to the SC between my starting location and my destination, so Nav suggested I travel an hour in the opposite direction to the closer SC, charge for 40 minutes, then retrace my route back to the SC closer to my destination, adding several hours to a 3 hour drive. The logic should be able to say "Continue charging or find local charger... You need XX more miles of range/% of charge to get to the SC..." or something to that effect.
2. When fully charged I started with enough charge to get from point A to B. However, soon into the trip it was going to be tight whether I could make it there. So I received the warning to stay below 55mph (and then 45mph) in order to reach Point B. This was highway driving. However, there was a SC between my current location and Point B -- at that time, Nav should have given me the warning and suggested/asked to reroute to the SC along the way.
Mobile App
Preconditioning option: Let me send a signal to the car that I'm leaving in 5, 10 minutes and to get ready.
Nav option: Let me send a destination to the car, either from within the app or from my desktop, so I don't have to type it into the car's nav. Sync my favorites/places.