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Self-tests 2026 firmware

USS Party CAN Communication Test

Gen3/tasks/TEST-SELF_PARK_X_CAN-TESLA-USS

Model 3 / YModel S / X (2021+)

What this task does

Tests the communication of the Ultrasonic Sensors (USS) over the party CAN bus.

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
Model Y, Pre-2024 Model 3
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, Pre-2024 Model 3
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 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
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

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ECU resets

PARK UDS ECU Reset

Resets the Parking Brake (PARK) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-RESET_PARK

Model 3 / Y Model S / X (2021+)
Self-tests

USS Front Sensor Connectivity Test

Tests the connectivity of the Ultrasonic Sensors (USS) in the front fascia.

TEST-SELF_PARK_FRONT_FASCIA-USS

Model 3 / Y Model S / X (2021+)
Self-tests

USS Rear Sensor Connectivity Test

Tests the connectivity of the Ultrasonic Sensors (USS) in the rear fascia.

TEST-SELF_PARK_REAR_FASCIA-USS

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