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ECU resets 2026 firmware

DIR UDS ECU Reset

Gen3/tasks/TEST-RESET_DIR

What this task does

Resets the Rear Drive Inverter (DIR) Electronic Control Unit (ECU). Reset is executed through Unified Diagnostics Services (UDS) over the Controller Area Network (CAN). inverter (DIR) Electronic Control Unit (ECU).

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, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Procedure notes

Pack contactors may open and then close shortly after, temporarily interrupting high voltage power.

Task inputs (0)

No user inputs are listed in this firmware.

Model 3 / Y Intel · Firmware 2026.32.7
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Procedure notes

Pack contactors may open and then close shortly after, temporarily interrupting high voltage power.

Task inputs (0)

No user inputs are listed in this firmware.

Model S / X (2021+) AMD · Firmware 2026.20.6.1
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Description in this firmware

Performs a Unified Diagnostic Services (UDS) reset of the rear drive inverter (DIR) Electronic Control Unit (ECU).

Task inputs (0)

No user inputs are listed in this firmware.

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Self-tests

Accelerator Connection Test

Tests for power, connection, and communication of the acceleration pedal.

TEST-SELF_DIR_X_ACCEL-PEDAL

Model 3 / Y Model S / X (2021+)
Service procedures

After Tire Rotation or Replacement - Tire Estimates Reset

Resets the learned tire estimates to prevent loss of regenerative braking. Clears the tire rotation alert after tire service. Optionally, specify the Winter (1) or Summer/All-Season (0) tire type for quicker learning.

PROC_DIR_CLEAR-LEARNT-TIRE-OFFSET

Model 3 / Y