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Service procedures 2026 firmware

Coolant - Start Thermal Fluid Fill and Drain

Gen3/tasks/PROC_VCFRONT2_X_START-THERMAL-FILL-DRAIN-COOLANT

Model 3 / Y

What this task does

Starts the Thermal Fluid Fill and Thermal Fluid Drain procedures. Returns result when routine is started, but runs for up to 50 minutes.

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 · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

Model 3 / Y Intel · Firmware 2026.32.7
Vehicle coverage
Model Y
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

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Self-tests

Ambient Sensor Test

Tests for power, connection, and communication of the ambient sensor controlled by the Front Vehicle Controller (VCFRONT2).

TEST-SELF_VCFRONT2_X_AMBIENT-TEMP

Model 3 / Y
Self-tests

Battery Coolant Pump Test

Tests for power, connection, and communication of the battery coolant pump controlled by the Front Vehicle Controller (VCFRONT2).

TEST-SELF_VCFRONT2_X_COOLANT-PUMP-BATTERY

Model 3 / Y
Service procedures

Clear left headlamp latched faults in factory

Clear all left headlamp factory latched faults that were triggering leftHeadlampFactoryFault alert

PROC_VCFRONT2_X_CLEAR-HEADLAMP-LATCHED-FACTORY-FAULTS

Model 3 / Y
Diagnostic tests

Coolant Air Purge

Starts the Coolant Purge Routine by running all pumps at maximum speed and changing valve positions. The routine will run for several minutes and will return a PASS if the routine started successfully. Vehicle must be in PARK gear and gateway unlocked.

TEST_VCFRONT2_X_THERMAL-COOLANT-AIR-PURGE-START

Model 3 / Y