VCSEC-A303
VCSEC_a303_KeyfobUpdateInterrupted
What does VCSEC-A303 mean?
Tesla alert code in the Vehicle Controller Security (VCSEC) module. Security controller could not update a keyfob but may try again The VCSEC has detected that there are no phone-keys connected while driving If there are no phone-keys connected after driving for 250 meters and NFC was not used for authentication User could leave their phone behind and be unable to re-start their vehicle
Original Description
Security controller could not update a keyfob but may try again The VCSEC has detected that there are no phone-keys connected while driving If there are no phone-keys connected after driving for 250 meters and NFC was not used for authentication User could leave their phone behind and be unable to re-start their vehicle
Severity Notes
VCSEC-A303 is an Alert in the Vehicle Controller Security system. It is generally safe to continue driving, but have it checked at your next scheduled service.