TESLA Fault

CHG-F039

CHG_f039_12V

Also written as CHG_F039 / CHG F039 / CHG_f039_12V / chg_f039_12v

System
CHG
Charger
Type
Fault
Category
Charging
Severity
Fault (Critical)

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 CHG-F039 mean?

Tesla fault code in the Charger (CHG) module. The 12V measurement detected by the charger is not within the expected limits.

Original Description

The 12V measurement detected by the charger is not within the expected limits.

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Charger alert: The 12V measurement detected by the charger is not within the expected limits.
  • Vehicle shows charging error immediately after plugging in
  • Charge port light stays red or does not respond

How to Diagnose and Resolve

  1. 1 Try a different outlet or charging cable
  2. 2 Check if your circuit breaker has tripped
  3. 3 Reboot the vehicle and attempt to charge again
  4. 4 Schedule a Tesla Service appointment — the on-board charger may need replacement

Severity Notes

CHG-F039 is classified as a Fault, indicating a critical issue in the Charger system. Do not continue driving and contact Tesla Service immediately.

Other CHG Codes

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