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ECU resets 2026 firmware

VCBATT UDS ECU Reset

Poppyseed/tasks/TEST-RESET_VCBATT

Model 3 / Y

What this task does

The test resets the Low Voltage Battery Vehicle Controller (VCBATT) ECU via UDS.

Vehicle & firmware coverage

Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.

Model 3 / Y AMD · Firmware 2026.32.3
Vehicle coverage
2024+ Model 3, 2025+ Model Y, Model Y
Supported connection
Local connection
Vehicle state
Stationary · Drive; Stationary · Neutral; Stationary · Parked; Stationary · Reverse
Gateway diagnostic level
Service, Factory, DiagLinkActive

Procedure notes

Vehicle will be undriveable momentarily. Make sure the ECU recovers before you run other ECU hard resetting routines.

Task inputs (0)

No user inputs are listed in this firmware.

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Communication checks

Front Vehicle Controller (VCBATT) CAN Communication

Tests communication with the front vehicle controller (VCBATT) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_VCBATT

Model 3 / Y
Communication checks

Low Voltage Battery Vehicle Controller (VCBATT) CAN Communication

Tests communication with the low voltage battery vehicle controller (VCBATT) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_VCBATT_ALL

Model 3 / Y