VCSEC-A201
VCSEC_a201_leftEndpointLostComm
Also written as VCSEC_A201 / VCSEC A201 / VCSEC_a201_leftEndpointLostComm / vcsec_a201_leftendpointlostcomm
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does VCSEC-A201 mean?
Tesla alert code in the Vehicle Controller Security (VCSEC) module. The security controller did not receive event for more than 10sec from the left endpoint VCSEC commands to add services to rear endpoint is timed out
Original Description
The security controller did not receive event for more than 10sec from the left endpoint VCSEC commands to add services to rear endpoint is timed out
Affected Tesla Models
What You May Notice
- Vehicle Controller Security alert: The security controller did not receive event for more than 10sec from the left endpoint VCSEC commands to add services
- Possible issue with keyless entry or passive entry
- Alert in the Tesla app
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Re-pair your phone key or key card in Controls > Locks
- 3 Schedule service if Sentry Mode or key access remains unreliable
Severity Notes
VCSEC-A201 is an Alert in the Vehicle Controller Security system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.