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Service procedures 2026 firmware

Tesla Air Suspension Airline Test

Common/tasks/PROC_TAS_X_AIRLINE-TEST

What this task does

Check Tesla Air Suspension (TAS) airline connections. TAS must be in Service Mode (PROC_TAS_X_ENTER-SERVICE-MODE) and be set to Medium ride height (PROC_TAS_X_LEVEL-TO-HEIGHT) before running this routine.

Vehicle & firmware coverage

Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.

Model S / X (legacy) Legacy infotainment · Firmware 2026.14.6
Vehicle coverage
Pre-2021 Model S, Pre-2021 Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
DiagLinkActive, Factory, Service

Procedure notes

Raises the vehicle and compressors can be heard running. The vehicle remains at Medium ride height.

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
Gateway diagnostic level
DiagLinkActive, Factory, Service

Procedure notes

Raises the vehicle and compressors can be heard running. The vehicle remains at Medium ride height.

Task inputs (0)

No user inputs are listed in this firmware.

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Communication checks

Air Suspension Chassis CAN Communication

Tests communication with the Air Suspension Chassis (TAS) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_TAS

Model S / X (2021+)
Service procedures

Air Suspension Pressure Measurement

Measures the air pressure of the Tesla Air Suspension (TAS) system.

PROC_TAS_X_MEASURE-AIR-SUSPENSION-PRESSURE

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

Calibrate Air Suspension

Calibrate the ride height of the Tesla Air Suspension (TAS).

PROC_TAS_X_CALIBRATE-RIDE-HEIGHT-PACK

Model S / X (2021+)
Service procedures

Check TAS Run Mode.

Check Tesla Air Suspension (TAS) Electronic Control Unit (ECU) mode.

PROC_TAS_X_CHECK-RUN-MODE

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