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Service procedures 2026 firmware

Start EPBL Service Mode

Gen3/tasks/PROC_EPBL_START-SERVICE-MODE

Model 3 / YModel S / X (2021+)

What this task does

Activates Service Mode on the left Electronic Park Break (EPBL).

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; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

Press brake when starting Service Mode on second Electronic Park Break (EPB).

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; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

Press brake when starting Service Mode on second Electronic Park Break (EPB).

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; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

Press brake when starting Service Mode on second Electronic Park Break (EPB).

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

Browse all tasks →
Service procedures

End EPBL Service Mode

Ends service mode on the left EPB

PROC_EPBL_STOP-SERVICE-MODE

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

EPBL Connection Test

Tests the communication of the Left Electronic Parking Brake (EPBL) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_EPBL

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

EPBL UDS ECU Reset

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

TEST-RESET_EPBL

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

Left Front Seat Fan Test

Tests current of the front left seat controlled by the Left Electronic Parking Brake (EPBL) Electronic Control Unit (ECU).

TEST-SELF_EPBL_FRONT_SEAT-FAN

Model 3 / Y