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The service task reference · 2026

Tesla service tasks.

Find the procedure. Understand what it does. Explore diagnostic tests and repair tasks you can run with Tesware on compatible vehicles.

1,357

service tasks

2026 firmware

Model 3, Y, S & X

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1,357 tasks Showing 385–408

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Service procedures

Enable Card-based SIM

Enable Card-based SIM

PROC_ICE_X_ENABLE-SIM-CARD

Model S / X (legacy)
Service procedures

Enable Front Driver Seat Hard Stop

Enables the hard stop feature on the front driver seat. This prevents the seat from moving beyond set physical travel limits. This routine must be run after disabling the hard stop feature.

PROC_VCSEATD_FRONT-SEAT-ENABLE-HARD-STOP

Model S / X (2021+)
Service procedures

Enable Front Passenger Seat Hard Stop

Enables the hard stop feature on the front passenger seat. This prevents the seat from moving beyond set physical travel limits. This routine must be run after disabling the hard stop feature.

PROC_VCSEATP_FRONT-SEAT-ENABLE-HARD-STOP

Model S / X (2021+)
Service procedures

Enable Mobile App Access

The procedure enables mobile app access to the vehicle by switching on the Mobile Access toggle on the User Interface (UI). This may be helpful for direct-to-home deliveries or after-hours pickups.

PROC_ICE_X_ENABLE-MOBILE-APP

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

End EPBR Service Mode

Ends service mode on the right EPB

PROC_EPBR_STOP-SERVICE-MODE

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

End-to-End Cellular Connectivity

Tests end-to-end cellular connectivity to confirm that the modem is functional. Checks if the vehicle can access the internet.

PING-BASH_CELLCONN

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

Ensure Power Accessory Plus

The procedure enables the vehicle to enter Accessory Plus (ACC+) power state.

PROC_VCFRONT_X_POWER-ACCESSORY-PLUS

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

Ensure Power Off - Open HV Contactors

The procedure opens both positive and negative high voltage contactors and disables low voltage (LV) support, so that the vehicle becomes completely powered off if the LV battery is also disconnected.

PROC_VCFRONT_X_POWER-CONTACTORS_OPEN

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

Ensure Power State Off

Returns 12V power state control back to VCFRONT (terminates special power state requests)

PROC_VCFRONT_X_POWER-OFF

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

Enter Dyno Mode

Allows the Infotainment and Connectivity ECU (ICE) to enter dyno mode for authorized testing of vehicles on a lift or a dyno.

PROC_ICE_X_ENTER-DYNO-MODE

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

Enter Service Mode

Provides diagnostic information and common diagnostic routines from the vehicle touchscreen.

PROC_ICE_X_ENTER-SERVICE-MODE

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

Enter Service Mode Plus

Enables an authenticated extension of Service Mode that includes advanced diagnostic information and service routines from the vehicle touchscreen. Entering Service Mode Plus will pass the user's ODIN token to the vehicle. The token will be used when performing actions in vehicle via the touchscreen. The token can be deleted by exiting Service Mode or by logging out in vehicle via the touchscreen.

PROC_ICE_X_ENTER-SERVICE-MODE-PLUS

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

EPAS Chassis CAN Communication Test

Tests the communication of the Electronic Power Assist Steering (EPAS) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the chassis Controller Area Network (CAN).

PING-TP_EPAS3S

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

EPAS ESP - Clear Angle Offsets

Clears angle offsets for Electronic Stability Program (ESP) and Electronic Power Assist Steering (EPAS) (including EPAS, EPAS2, and EPAS3x). Clears steering angle offsets for the Drive Inverter (DI). Resets soft lock stops on EPAS.

PROC_EPAS_ESP_CLEAR-ANGLE-OFFSETS

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

EPAS Party CAN Communication Test

Tests the communication of the Electronic Power Assist Steering (EPAS) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Party Controller Area Network (CAN).

PING-TP_EPAS3P

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

EPAS Post Replacement Routine

The procedure runs all required routines after a steering rack replacement.

PROC_EPAS_X_POST-REPLACEMENT

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

EPAS Trim Torsion Bar Torque

Zero EPAS Torque Sensor: ensure vehicle is on lift!

PROC_EPAS_TBT_TRIM-TORSION-BAR-TORQUE

Model 3 / Y
Communication checks

EPAS3P CAN Communication

Tests communication with the Electronic Power-Assisted Steering on Party Bus (EPAS3P) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_EPAS3P

Model S / X (legacy)
Diagnostic tests

EPAS3P Check applied angle offset

Checks the applied angle offset for Electronic Power Assist Steering (EPAS).

TEST_EPAS3P_X_CHECK-APPLIED-ANGLE-OFFSET

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

EPAS3P UDS ECU Reset

Resets the Primary Electronic Power Assist Steering (EPAS3P) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-RESET_EPAS3P

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

EPAS3P/S Learn SCCM Angle Offset

The procedure learns the angle offset from the Steering Column Control Module (SCCM) for the Electric Power Assisted Steering (EPAS) Electronic Control Unit (ECU).

PROC_EPAS3X_X_LEARN-SCCM-ANGLE-OFFSET

Model S / X (2021+)
Service procedures

EPAS3P/S Learn SCCM Angle Offset

The procedure learns the angle offset from the Steering Column Control Module (SCCM) for the Electric Power Assisted Steering (EPAS) Electronic Control Unit (ECU).

PROC_EPAS3X_X_LEARN-SCCM-ANGLE-OFFSET

Model 3 / Y

About this reference

Descriptions and input definitions come from Tesla’s 2026 vehicle firmware. This catalog includes tasks covered by Tesware’s current service access. Each task page lists the vehicle and firmware versions in which it was found. The connected vehicle confirms whether a task can run.

  • Model 3 / Y · AMD · firmware 2026.32.3
  • Model 3 / Y · Intel · firmware 2026.32.7
  • Model S / X (legacy) · Legacy infotainment · firmware 2026.14.6
  • Model S / X (2021+) · AMD · firmware 2026.20.6.1

Cybertruck is not included in this 2026 reference.