TSB B23-009 — Acura Service bulletin
B23-009 is a service bulletin on file with NHTSA for 2 Acura models, 2015–2020 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. Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years B23-009 names
Every document filed under B23-009
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 |
|---|---|---|
| B23-009 | April 20, 2023 | Service bulletin |
| B23-009 | March 1, 2023 | Service bulletin |
What B23-009 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB B23-009?
B23-009 is a service bulletin filed with NHTSA by Acura, covering 2 Acura models across the 2015–2020 model years. NHTSA's summary reads: Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from…
Which vehicles does B23-009 cover?
NHTSA's file names Acura MDX (2016–2018, 2020); Acura TLX (2015–2020). 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 B23-009 a recall, and is the repair free?
No. B23-009 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 B23-009?
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 B23-009, 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 B23-009. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.