IBST-A077
IBST_a077_runOutMotorSaturated
Also written as IBST_A077 / IBST A077 / IBST_a077_runOutMotorSaturated / ibst_a077_runoutmotorsaturated
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does IBST-A077 mean?
Tesla alert code in the Integrated Brake System (IBST) module. FW set if motor saturated RunOut pressure not reached Monitoring of VPRE U5V over- and undervoltage bits. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
FW set if motor saturated RunOut pressure not reached Monitoring of VPRE U5V over- and undervoltage bits. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: FW set if motor saturated RunOut pressure not reached Monitoring of VPRE U5V over- and undervoltage bits. ECU internal f
- No noticeable change in braking performance under normal driving
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Monitor over the next few drives
- 3 Schedule service if the alert reappears
Severity Notes
IBST-A077 is an Alert in the Integrated Brake System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.