Is IBST_D191 the same as IBST-D191?

Yes. IBST_D191, IBST D191, and IBST-D191 are alternate spellings of the same Tesla alert code. Also written as: IBST-D191, IBST_D191, IBST D191, IBST_d191_plausVin, ibst_d191_plausvin.

What symptoms can IBST-D191 cause?

Integrated Brake System alert: The received VIN does not match the stored VIN. No noticeable change in braking performance under normal driving

What should I check for IBST-D191?

1. Reboot the vehicle 2. Monitor over the next few drives 3. Schedule service if the alert reappears

Is it safe to drive with IBST-D191?

🟢 Record the code and follow the vehicle display or OEM guidance if it appears again.

TESLA Diagnostic

IBST-D191

IBST_d191_plausVin

Also written as IBST_D191 / IBST D191 / IBST_d191_plausVin / ibst_d191_plausvin

System

IBST

Integrated Brake System

Type

Diagnostic

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-D191 mean?

Tesla diagnostic code in the Integrated Brake System (IBST) module. The received VIN does not match the stored VIN.

Original Description

The received VIN does not match the stored VIN.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

Integrated Brake System alert: The received VIN does not match the stored VIN.
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-D191 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.

Other IBST Codes

IBST_a001 IBST_a002 IBST_a003 IBST_a004 IBST_a005 IBST_a006 Tesla alert code in the Integrated Brake System (IBST) modul... IBST_a007 IBST_a008

View all IBST codes →