TSB B652724 — BMW Service bulletin
B652724 is a service bulletin on file with NHTSA for the BMW X5, 2020–2023 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. A check control message (CCM) for the restraint system (Air bag) appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: Short circuit to…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years B652724 names
Every document filed under B652724
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 |
|---|---|---|
| B652724 | May 19, 2026 | Service bulletin |
| B652724 | November 25, 2025 | Service bulletin |
| B652724 | October 17, 2024 | Service bulletin |
What B652724 covers
Airbags — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB B652724?
B652724 is a service bulletin filed with NHTSA by BMW, covering the BMW X5 across the 2020–2023 model years. NHTSA's summary reads: A check control message (CCM) for the restraint system (Air bag) appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: Short circuit to…
Which vehicles does B652724 cover?
NHTSA's file names BMW X5 (2020–2023). 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 B652724 a recall, and is the repair free?
No. B652724 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 B652724?
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 B652724, 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 B652724. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.