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Model 3 Key Fob transfer

RayK

Safety Score 90 (Was 96!)
Apr 5, 2016
2,974
3,062
San Jose, CA
I can't say that I've ever done something like this but here's my take:

  • Have your friend deactivate the fob from his car
  • Verify that it doesn't work anymore to unlock/lock his car
  • Take the fob, along with one of your keycards (or possibly your already connected phone) and associate the fob with your car
  • If the fob works for your car (all functions available), then pay the man
 
  • Like
  • Helpful
Reactions: Chewy3 and Akikiki
I can't say that I've ever done something like this but here's my take:

  • Have your friend deactivate the fob from his car
  • Verify that it doesn't work anymore to unlock/lock his car
  • Take the fob, along with one of your keycards (or possibly your already connected phone) and associate the fob with your car
  • If the fob works for your car (all functions available), then pay the man
Got it! Will try it tomorrow and update the thread!
 

SDKoala

M3LR RWD / MYLR
Apr 11, 2018
874
982
San Diego
Interesting. It makes me wonder if it's possible to pair the fob to multiple cars, or if the fob can only have one car paired to it. In theory it's emitting whatever BLE signal it emits just like the phone and it's the car that should recognize whether that signal is allowed to open it or not, which you authorize by pairing it the first time with your key card. Maybe someone with more than one 3 and a key fob can chime in.
 
Interesting. It makes me wonder if it's possible to pair the fob to multiple cars, or if the fob can only have one car paired to it. In theory it's emitting whatever BLE signal it emits just like the phone and it's the car that should recognize whether that signal is allowed to open it or not, which you authorize by pairing it the first time with your key card. Maybe someone with more than one 3 and a key fob can chime in.
Not sure how to LIKE a post, or if I have that ability yet, but you're right about the BLE signal. I'm hoping it won't be too difficult!
 

diamond.g

Active Member
Nov 5, 2015
2,521
1,472
Moyock, NC
Interesting. It makes me wonder if it's possible to pair the fob to multiple cars, or if the fob can only have one car paired to it. In theory it's emitting whatever BLE signal it emits just like the phone and it's the car that should recognize whether that signal is allowed to open it or not, which you authorize by pairing it the first time with your key card. Maybe someone with more than one 3 and a key fob can chime in.
The manual says you can you 1 fob for multiple 3’s. You just have to touch the pillar before it will switch cars.
 

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