VCSEC-A266
VCSEC_a266_TPMSSoftWarningFrontLeft
Also written as VCSEC_A266 / VCSEC A266 / VCSEC_a266_TPMSSoftWarningFrontLeft / vcsec_a266_tpmssoftwarningfrontleft
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-A266 mean?
Tesla alert code in the Vehicle Controller Security (VCSEC) module. Front left sensor reports pressure under region specific percentage of recommended cold pressure (RCP) Front left sensor reports pressure within region specific bounds of recommended cold pressure (RCP) TPMS telltale and poor vehicle performance Added scheduleit key. Enrolled into scheduleit fleet A fault occured when sending indication to the phone VCSEC is using the factory key.
Original Description
Front left sensor reports pressure under region specific percentage of recommended cold pressure (RCP) Front left sensor reports pressure within region specific bounds of recommended cold pressure (RCP) TPMS telltale and poor vehicle performance Added scheduleit key. Enrolled into scheduleit fleet A fault occured when sending indication to the phone VCSEC is using the factory key.
Affected Tesla Models
What You May Notice
- Vehicle Controller Security alert: Front left sensor reports pressure under region specific percentage of recommended cold pressure (RCP) Front left sensor
- 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-A266 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.