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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 745–768

Browse by name, A–Z

Diagnostic tests

Model X Trailer Detection test

This test will automatically pass if the BCREAR ECU does not detect a trailer or other fault.

TEST_BCREAR_X_TRAILER-DETECTION-WARNING

Model S / X (legacy)
Communication checks

Modem Health Check

Checks the communication between the car computer and cellular modem. Runs a self-test.

PING-BASH_MODEM_HEALTH_CHECK

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

Modem Health Check

Checks communication between car computer and cellular modem and then runs a self-test.

PING-BASH_MODEM_HEALTH_CHECK

Model S / X (legacy)
Service procedures

Monopost Seat Left Install Mode - Enable

Enables the installation mode for the rear left monopost seat BCS2L ECU.

PROC_BCS2L_REAR_MONO-SEAT-ENABLE-INSTALL-MODE

Model S / X (2021+)
Service procedures

Move Database

The procedure stops a UI process, moves the corresponding database, and restarts the process. This is helpful for resolving database corruption issues that lead to unexpected UI behavior, including center display restart or flickering. This will lose customer data, please obtain permission from the vehicle owner.

PROC_ICE_X_MV-ICE-DATABASE

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

MX 2nd Row Left Fold Flat Easy Entry Seat Self Test

Checks the circuitry of the Second Row Seat Heat Pad Thermostat, Second Row Center Occupancy Switch, Second Row Center Buckle Switch, Second Row Left Occupancy Switch, Second Row Left Buckle Switch, Recliner Comfort Zone Switch, Recliner Motor Current and Track Latch Switch.

TEST-SELF_BCS2L_R2-L_FOLD-FLAT-EASY-ENTRY-SEAT

Model S / X (2021+)
Self-tests

MX 2nd Row Left Fold Flat Seat Self Test

Checks circuitry of the Left Second Row Seat Buckle Switch, Center Second Row Seat Buckle Switch, Left Second Row Seat Heatpad Thermistor, Center Second Row Seat Heatpad Thermistor, Left Second Row Seat Occupancy Switch and Center Second Row Seat Occupancy Switch.

TEST-SELF_BCS2L_R2-L_FOLD-FLAT-SEAT

Model S / X (2021+)
Self-tests

MX 2nd Row Left Monopost Seat Self Test

Checks the circuitry of the Left Second Row Seat Buckle Switch, Comfort Pitch Current, Comfort Pitch Encoder, Easy Entry Backward Switch, Easy Entry Forward Switch, Easy Entry Hall Switch, Easy Entry Latch Switch, Easy Entry Unlatch Switch, Heatpad Thermistor, Occupancy Switch, Pitch Backward Switch, Pitch Forward Switch, Track Backward Switch, Track Forward Switch, Track Home Switch, Track Motor Current and Track Motor Encoder.

TEST-SELF_BCS2L_R2-L_MONOPOST-SEAT

Model S / X (2021+)
Self-tests

MX 2nd Row Right Fold Flat Easy Entry Seat Self Test

Checks the circuitry of the Second Row Seat Heat Pad Thermostat, Second Row Right Occupancy Switch, Second Row Right Buckle Switch, Recliner Comfort Zone Switch, Recliner Motor Current and Track Latch Switch.

TEST-SELF_BCS2R_R2-R_FOLD-FLAT-EASY-ENTRY-SEAT

Model S / X (2021+)
Self-tests

MX 2nd Row Right Fold Flat Seat Self Test

Checks circuitry of the Right Second Row Seat Buckle Switch, Center Second Row Seat Buckle Switch, Right Second Row Seat Heatpad Thermistor, Center Second Row Seat Heatpad Thermistor, Right Second Row Seat Occupancy Switch and Center Second Row Seat Occupancy Switch.

TEST-SELF_BCS2R_R2-R_FOLD-FLAT-SEAT

Model S / X (2021+)
Self-tests

MX 2nd Row Right Monopost Seat Self Test

Checks the circuitry of the Right Second Row Seat Buckle Switch, Comfort Pitch Current, Comfort Pitch Encoder, Easy Entry Backward Switch, Easy Entry Forward Switch, Easy Entry Hall Switch, Easy Entry Latch Switch, Easy Entry Unlatch Switch, Heatpad Thermistor, Occupancy Switch, Pitch Backward Switch, Pitch Forward Switch, Track Backward Switch, Track Forward Switch, Track Home Switch, Track Motor Current and Track Motor Encoder.

TEST-SELF_BCS2R_R2-R_MONOPOST-SEAT

Model S / X (2021+)
Self-tests

MX 3rd Row Left Fold Flat Seat Self Test

Checks the circuitry of the Left Third Row Seat Fold Flat Switch, Headrest Switch, Seat Buckle Switch, Seat Heatpad and Seat Occupancy Switch.

TEST-SELF_BCS2L_R3-L_FOLD-FLAT-SEAT

Model S / X (2021+)
Self-tests

MX 3rd Row Right Fold Flat Seat Self Test

Checks the circuitry of the Right Third Row Seat Fold Flat Switch, Seat Headrest Switch, Seat Buckle Switch. Seat Heatpad and Seat Occupancy Switch.

TEST-SELF_BCS2R_R3-R_FOLD-FLAT-SEAT

Model S / X (2021+)
Self-tests

MX Driver Side Ultrasonic Door With Obstacle Test

Test driver side Ultrasonic Sensor (USS) performance by checking the sensor correctly detects a 2.5 cm wide pole at a 60 cm distance. This should only be performed using the Falcon Door USS target (Part Number 1095806-00-A). It ensures the pole dimensions and location meet the test criterias.

TEST-SELF_BCFALCD_DRV_USS-DOOR-WITH-OBSTACLE

Model S / X (legacy)
Self-tests

MX Driver Side Ultrasonic Door With Obstacle Test

Test driver side Ultrasonic Sensor (USS) performance by checking the sensor correctly detects a 2.5 cm wide pole at a 60 cm distance. This should only be performed using the Falcon Door USS target (Part Number 1095806-00-A). It ensures the pole dimensions and location meet the test criterias.

TEST-SELF_BCFALCD_DRV_USS-DOOR-WITH-OBSTACLE

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.