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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 1297–1320

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ECU resets

VCFRONT ECU Reset

Resets the Front Vehicle Controller (VCFRONT) Electronic Control Unit (ECU) via Unified Diagnostics Services (UDS).

TEST-RESET_VCFRONT

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

VCFRONT2 coolant temp battery (self-test)

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

TEST-SELF_VCFRONT2_X_COOLANT-TEMP-BATTERY

Model 3 / Y
Self-tests

VCLEFT - Test Left Restraint Performance

Test performance and functionality of left side vehicle restraints system controlled by VCLEFT Electronic Control Unit (ECU).

TEST-SELF_VCLEFT_X_RESTRAINTS

Model 3 / Y
Self-tests

VCLEFT CAN communication (self-test)

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

TEST-SELF_VCLEFT_X_CAN

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

VCLEFT ECU Reset

Resets the Left Vehicle Controller (VCLEFT) Electronic Control Unit (ECU) via Unified Diagnostics Services (UDS).

TEST-RESET_VCLEFT

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

VCLEFT Front and Rear Door Puddle Lamp Self Test

Tests connection and harness of the left and rear door puddle lamp controlled by the Left Vehicle Controller (VCLEFT) Electronic Control Unit (ECU).

TEST-SELF_VCLEFT_X_DOOR-PUDDLE-LAMPS

Model 3 / Y
Self-tests

VCLEFT left rear lights (self-test)

Tests for power, connection, and communication of the rear left lights controlled by the Left Vehicle Controller (VCLEFT).

TEST-SELF_VCLEFT_REAR-L_LIGHTS

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

VCLEFT map pocket light (self-test)

Tests for power, connection, and communication of the left map pocket light controlled by the Left Vehicle Controller (VCLEFT).

TEST-SELF_VCLEFT_X_MAP-POCKET-LIGHT

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

VCLEFT RGB Lights Auto-Addressing and LIN Connectivity Test

Tests the auto-addressing and communication of RGB lights controlled by Left Vehicle Controller (VCLEFT), including Front Left Door RGB light (RGBDOORFL), Rear Left Door RGB light (RGBDOORRL), and Front Left and Front Right Instrument Panel RGB light (RGBIP). Communication is established via the Local Interconnect Network (LIN) bus.

TEST-SELF_VCLEFT_RGB

Model 3 / Y
Service procedures

VCLEFT RGB Set Attenuation

Used to set the max brightness parameter stored in the RGB ECU

PROC_VCLEFT_SET-RGB-ATTENUATION

Model 3 / Y
Service procedures

VCLEFT Set Ride Height Sensor Offsets

Sets the ride height sensor offsets for VCLEFT to FRONT_AXLE_HEIGHT and REAR_AXLE_HEIGHT. Default value is 155.

PROC_VCLEFT_X_SET-HEIGHT-SENSOR-OFFSETS

Model 3 / Y
Self-tests

VCRIGHT - Test Right Restraint Performance

Test performance and functionality of right side vehicle restraints system controlled by VCRIGHT Electronic Control Unit (ECU).

TEST-SELF_VCRIGHT_X_RESTRAINTS

Model 3 / Y
ECU resets

VCRIGHT ECU Reset

Resets the Right Vehicle Controller (VCRIGHT) Electronic Control Unit (ECU) via Unified Diagnostics Services (UDS).

TEST-RESET_VCRIGHT

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

VCRIGHT Front and Rear Door Puddle Lamp Self Test

Tests connection and harness of the front right and rear right door puddle lamp controlled by the Right Vehicle Controller (VCRIGHT) Electronic Control Unit (ECU).

TEST-SELF_VCRIGHT_X_DOOR-PUDDLE-LAMPS

Model 3 / Y
Self-tests

VCRIGHT map pocket light (self-test)

Tests for power, connection, and communication of the right map pocket light controlled by the Right Vehicle Controller (VCRIGHT).

TEST-SELF_VCRIGHT_X_MAP-POCKET-LIGHT

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

VCRIGHT RGB Lights Auto-Addressing and LIN Connectivity Test

Tests the auto-addressing and communication of RGB lights controlled by Right Vehicle Controller (VCRIGHT), including Front Right Door RGB light (RGBDOORFR) and Rear Right Door RGB light (RGBDOORRR).Communication is established via the Local Interconnect Network (LIN) bus.

TEST-SELF_VCRIGHT_RGB

Model 3 / Y
Service procedures

VCRIGHT RGB Set Attenuation

Used to set the max brightness parameter stored in the RGB ECU

PROC_VCRIGHT_SET-RGB-ATTENUATION

Model 3 / Y
ECU resets

VCSEAT2L UDS ECU Reset

Resets the Left Side Second Row Seat Vehicle Controller (VCSEAT2L) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-RESET_VCSEAT2L

Model 3 / Y
ECU resets

VCSEAT2R UDS ECU Reset

Resets the Right Side Second Row Seat Vehicle Controller (VCSEAT2R) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-RESET_VCSEAT2R

Model 3 / Y
Communication checks

VCSEATD CAN Communication

Tests communication with the Vehicle Controller Seat 1st Row Driver (VCSEATD) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_VCSEATD

Model S / X (2021+)
Communication checks

VCSEATD CAN Communication

Tests communication with the Vehicle Controller Seat 1st Row Driver (VCSEATD) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_VCSEATD

Model S / X (legacy)
Service procedures

VCSEATD Seat Controller Assignment Procedure

Assigns the seat controller ECU to be the Driver Seat Controller (VCSEATD) after installing the seat controller on the driver side of the vehicle.

PROC_VCSEATD_X_SIDE-LEARN

Model S / X (2021+)

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.