Beep horn and/or flash lights from the fob
We can beep the horn or flash the lights from the phone app, if we've forgotten just where in the parking lot the car is and that's great and useful. But I think it would be good if there was some sequence we could use on the fob to do the same thing, if it's inconvenient to get the phone out. Perhaps the lock sequence, if the car is already locked, e.g. press the top to lock. If you press it again and it's already locked, flash the lights. Press it again within 5 seconds and honk the horn. Or some other combo.