TESLA Alert

CP-A002

CP_a002_canTx

Also written as CP_A002 / CP A002 / CP_a002_canTx / cp_a002_cantx

System
CP
Charge Port
Type
Alert
Category
Charging
Severity
Alert

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 CP-A002 mean?

Tesla alert code in the Charge Port (CP) module. CAN Tx Buffer Error

Original Description

CAN Tx Buffer Error

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Charge port alert: CAN Tx Buffer Error
  • Charging session may be interrupted or not starting as expected
  • Charge port light flashing amber or red

How to Diagnose and Resolve

  1. 1 Unplug and re-plug the charge cable
  2. 2 Try a different charging cable or Supercharger stall
  3. 3 Reboot the vehicle and attempt to charge again
  4. 4 If "CAN Tx Buffer Error" persists, contact Tesla Roadside Assistance
  5. 5 Schedule a Service Center visit if the problem continues

Severity Notes

CP-A002 is an Alert in the Charge Port system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.

Other CP Codes

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