TSB B661323 — BMW Service bulletin
B661323 is a service bulletin on file with NHTSA for the BMW X3, 2022–2024 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Various Check Control messages (CCM) can be displayed to the customer, which indicate a restricted function or an unavailability of the driver assistance systems or driver assistance functions. During the diagnosis, the following fault memory entries are entered individually or…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years B661323 names
Every document filed under B661323
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| B661323 | January 5, 2026 | Service bulletin |
| B661323 | October 29, 2025 | Service bulletin |
What B661323 covers
Driver assistance — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB B661323?
B661323 is a service bulletin filed with NHTSA by BMW, covering the BMW X3 across the 2022–2024 model years. NHTSA's summary reads: Various Check Control messages (CCM) can be displayed to the customer, which indicate a restricted function or an unavailability of the driver assistance systems or driver assistance functions. During the diagnosis, the following fault memory entries are entered individually or…
Which vehicles does B661323 cover?
NHTSA's file names BMW X3 (2022–2024). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB B661323 a recall, and is the repair free?
No. B661323 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of B661323?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under B661323, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under B661323. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.