VCSEC-A187
VCSEC_a187_badConnectionDropped
Also written as VCSEC_A187 / VCSEC A187 / VCSEC_a187_badConnectionDropped / vcsec_a187_badconnectiondropped
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-A187 mean?
Tesla alert code in the Vehicle Controller Security (VCSEC) module. The VCSEC has voluntarily dropped a connection due to the connection reporting invalid RSSI for too long
Original Description
The VCSEC has voluntarily dropped a connection due to the connection reporting invalid RSSI for too long
Affected Tesla Models
What You May Notice
- Vehicle Controller Security alert: The VCSEC has voluntarily dropped a connection due to the connection reporting invalid RSSI for too long
- 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-A187 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.