Comment by xattt
2 years ago
A few thoughts on keys:
I am consciously trying to whittle down my keychain to reduce the chance of temporary losing access to things. I have a keypad door lock so I’be been able to get rid of my front door key.
However, I found that decreasing the use of something can increase the chance of losing it, because you’re not “touching” it all the time and not aware of its location.
I have an Airtag, but wish that it could be integrated into the car keyfob to whittle down the size even more.
Only one of my cars has a key fob, and I finally took that fob off my keychain once I realized that I can use the 5 digit keypad on the door to lock and unlock it. It's very freeing only having a few small keys in your pocket and not a bunch of giant fobs.
This reason is precisely why I got an implanted RFID chip. When I lived in apartments, I would _constantly_ lose my door fob. It's much more difficult to lose the chip if it is part of you ;)
(I wouldn't recommend embedding an Airtag though, ha)
Probably I'm just old but I'm very aware of an electronic device being a single point of failure. (I realize the car's keyfob is that--and have been meaning to investigate the practicality of keeping a spare key in the car in a faraday bag.) I do keep a physical door key on my keyring even with a keypad door lock and have one somewhere on my property as well.
Most cars have a physical key tucked in the fob, and will do some form of passive RFID “auth” when the fob is brought close to the start button or equivalent. It is not too different from engine immobilizer keys.
I'm aware of the key in the fob. I Wasn't aware that there were other capabilities if the fob itself wasn't working. Was just experimenting the other day about the capabilities and limitations of the keyfob under different conditions.
It seems as if you can't lock the key in the car but I'm not sure how much I trust that experiment.