TESLA Alert

CP-A044

CP_a044_lostCommsHVP

Also written as CP_A044 / CP A044 / CP_a044_lostCommsHVP / cp_a044_lostcommshvp

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-A044 mean?

Tesla alert code in the Charge Port (CP) module. Lost communication with HVP

Original Description

Lost communication with HVP

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Charge port alert: Lost communication with HVP
  • 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 "Lost communication with HVP" persists, contact Tesla Roadside Assistance
  5. 5 Schedule a Service Center visit if the problem continues

Severity Notes

CP-A044 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

CP_a001 Tesla alert code in the Charge Port (CP) module. CAN Rx Buff... CP_a002 Tesla alert code in the Charge Port (CP) module. CAN Tx Buff... CP_a003 Tesla alert code in the Charge Port (CP) module. Generic CAN... CP_a004 CP_a005 CP_a006 CP_a007 Tesla alert code in the Charge Port (CP) module. Watchdog ti... CP_a008
View all CP codes →