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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

Find a service task

1,357 tasks Showing 505–528

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Self-tests

Frunk Emergency Release Switch LED Connection

Checks the electrical connection of the LED light in front trunk emergency release switch controlled by the Front Vehicle Controller (VCFRONT).

TEST-SELF_VCFRONT_X_FRUNK-LED

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

Frunk Latch Releases

The test releases the latch of the front trunk controlled by the Front Battery Controller (VCBATT2).

TEST-SELF_VCBATT2_X_FRUNK-LATCH

Model 3 / Y
Self-tests

Frunk Latch Releases

The test releases the latch of the front trunk controlled by the Front Vehicle Controller (VCFRONT).

TEST-SELF_VCFRONT_X_FRUNK-LATCH

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

Fuse Modem

The procedure fuses only the modem board when the other components are already fused. This is useful for modem replacements that were not fused in the factory. Production components should always be fused.

PROC_SEC_X_FUSE-MODEM

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

Gateway Display Control

Interface for the gw-display-control utility.

PROC_CID_X_GW-DISPLAY-CONTROL

Model S / X (2021+)
Service procedures

Gen2 GTW Configuration Update

Updates the configuration for the Gen 2 Gateway (GTW).

PROC_ICE_X_ACCESS-INTERNAL-DAT

Model S / X (legacy)
Communication checks

Generic ECU CAN Communication

Tests communication with an Electronic Control Unit (ECU) selected by the user. Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN) and confirming a response within 5 seconds.

PING-TP_ECU

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

Get DIF Parts Info

Retrieves component information for the Front Drive Unit and Inverter (DIF) Including: - Drive Unit Part Number - Drive Unit Serial Number - Inverter Part Number - Inverter Serial Number - Two Phase Open Pyro - Motor Type

PROC_DIF_X_GET-PARTS-INFO

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

Get DIR Parts Info

Retrieves component information for the Rear Drive Unit and Inverter (DIR) Including: - Drive Unit Part Number - Drive Unit Serial Number - Inverter Part Number - Inverter Serial Number - Two Phase Open Pyro - Motor Type

PROC_DIR_X_GET-PARTS-INFO

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

Get DIREL Parts Info

Retrieves component information for the Rear Left Drive Unit and Inverter (DIREL) Including: - Drive Unit Part Number - Drive Unit Serial Number - Inverter Part Number - Inverter Serial Number - Two Phase Open Pyro - Motor Type

PROC_DIREL_X_GET-PARTS-INFO

Model S / X (2021+)
Service procedures

Get DIRER Parts Info

Retrieves component information for the Rear Right Drive Unit and Inverter (DIRER) Including: - Drive Unit Part Number - Drive Unit Serial Number - Inverter Part Number - Inverter Serial Number - Two Phase Open Pyro - Motor Type

PROC_DIRER_X_GET-PARTS-INFO

Model S / X (2021+)
Service procedures

Get sunroof status

Provides information on current sunroof status.

PROC_CID_X_SUNROOF-STATUS

Model S / X (legacy)
Self-tests

Glareshield heater self test

Tests ability to enable and detect the glareshield heater.

TEST-SELF_VCRIGHT_X_GLARESHIELD-HEATER

Model 3 / Y
Service procedures

Glass Defrost Off

This test turns all glass defrosts off.

PROC_CID_X_GLASS-DEFROST-OFF

Model S / X (legacy)
Service procedures

Glovebox Open

Opens the glovebox and bypasses glovebox pin.

PROC_ICE_X-OPEN-GLOVEBOX

Model 3 / Y Model S / X (legacy) Model S / X (2021+)
Diagnostic tests

Glovebox USB Self-test

This test is an end to end check for the glovebox USB device.

TEST-BASH_CID_X_USB3-GLOVEBOX-SERVICE

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

Glovebox USB with Bluetooth Self-test

This test is an end to end check for the glovebox USB (with Bluetooth) device.

TEST-BASH_CID_X_USB3-GLOVEBOX-BT-SERVICE

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

GNSS Desense Test For USB On/Off

GNSS USB Desense Test To Capture Constellation Values and Signal Strength Delta With USB On and then Off

TEST_DAS_X_GNSS-USB-DESENSE-ON-OFF

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

GNSS Desense Test With All Cameras On

GNSS Desense Test To Capture Constellation Values and Signal Strength Delta With All Cameras On

TEST_DAS_X_GNSS-CAMERA-DESENSE-ALL-CAMERAS-ON

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

GNSS Desense Test With Only Interior Camera On

GNSS Desense Test To Capture Constellation Values and Signal Strength Delta With Only Interior Camera On

TEST_DAS_X_GNSS-CAMERA-DESENSE-INTERIOR-CAMERA-ON

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

GNSS Spectrum Test For Camera And USB On/Off

Evaluates the Electromagnetic Interference (EMI) difference between the camera and USB On/Off with a Global Navigation Satellite System (GNSS) Spectrum Analyzer Test.

TEST_DAS_X_GNSS-SPECTRUM-CAMERA-USB-ON-OFF

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

GPS Reset

Resets the GPS system.

DAS-GPS-RESET

Model 3 / Y
Diagnostic tests

GPS Status

Check the GPS antenna status to be Normal.

TEST_CID_X_GPS

Model S / X (legacy)

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.