TESLA Alert

TAS-A002

TAS_a002_PowerLossReset

Also written as TAS_A002 / TAS A002 / TAS_a002_PowerLossReset / tas_a002_powerlossreset

System
TAS
Thermal Architecture System
Type
Alert
Category
HVAC
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 TAS-A002 mean?

Tesla alert code in the Thermal Architecture System (TAS) module. Sudden power loss.

Original Description

Sudden power loss.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

  • Thermal Architecture System alert: Sudden power loss.
  • Reduced charging speed in cold weather or battery pre-conditioning required
  • HVAC performance may be slightly affected

How to Diagnose and Resolve

  1. 1 Reboot the vehicle
  2. 2 Check coolant levels if accessible (Model S/X only)
  3. 3 Avoid DC fast charging until battery temperature normalizes
  4. 4 Schedule service if the alert appears in warm ambient conditions

Severity Notes

TAS-A002 is an Alert in the Thermal Architecture System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.

Other TAS Codes

TAS_a001 TAS_a003 TAS_a012 TAS_a015 Tesla alert code in the Thermal Architecture System (TAS) mo... TAS_a021 TAS_a022 TAS_a025 TAS_a030
View all TAS codes →