Skip to content
Service procedures 2026 firmware

Bosch EPAS Calibration

ModelSX/tasks/PROC_EPAS_X_CALIBRATION

Model S / X (legacy)

What this task does

Calibrates Bosch Electric Power Assisted Steering (EPAS) by flashing the Electronic Control Unit (ECU), resetting steering soft lock stops, and angle compensation.

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
Factory, Service

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

Browse all tasks →
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+)
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+)