cellogig
Model X..Model 3
Please post this on the phone key issueTesla should provide an optional FOB for model 3. The issue here is NOT Tesla's SW or bluetooth. It is about how the bluetooth implementation is on both Android and iPhones. The phone needs to save power, so they do NOT have the bluetooth radio advertising all the time its presence. It is dynamically managed by the OS in the phone and it decides when to broadcast the bluetooth services of the phone. The car's BT radio is always on scanning to see if a known BT advertiser (your phone) is around and then unlock the car.
These varies from phone to phone and from OS to OS version in the phones, to give you an example sometimes on iOS there can be lapses of 30s or more with the BT radio not advertising its ID making it impossible for the car to detect the presence.
I have developed bluetooth proximity applications and know how this works, it is documented on both Android and iOS developer guides. As the battery of your phone gets lower the power management policies become more aggressive and bluetooth is not advertising for longer periods of time.
Tesla knows this, and still they chose to use this as the primary method to unlock the vehicle. From an App perspective you can't override the phone OS bluetooth power policy when the App is in the background. When it is on the foreground (app open) your car will unlock easier (because the App now has full control of the BT radio on the phone) but when the phone is in your pocket (App in background mode) the phone OS has to arbitrate the use of the BT radio based on all the services requested by all BT apps in your phone (Tesla app being just one of them). This is how phone OSs work so you do not burn battery as BT will be advertising its ID too often.
So, give us the option of an FOB like in the model S. Also heard phone auto unlock is coming on Model S at some point.
The polls regarding fob and anything regarding this issue.
Thank u and thank u for an explanation of why and not people thinking they know why.