TSB B23040A — Acura Service bulletin

B23040A is a service bulletin on file with NHTSA for 3 Acura models, 2005–2012 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. Service News - The navigation clock and date are incorrect. This is due to a limited GPS receiver capacity resulting in rollover of internal chip memory. The rollover occurred on January 1, 2022 at 12:00AM local time

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
3Vehicles named
8Model years

Vehicles and model years B23040A names

VehicleModel years
Acura MDX 2005, 2006, 2007, 2008, 2009
Acura RDX 2007, 2008, 2009, 2010, 2011, 2012
Acura TL 2007, 2008

Every document filed under B23040A

Document IDFiledType
B23040A May 17, 2023 Service bulletin

What B23040A covers

Electrical — the component vocabulary NHTSA files this communication under.

← All Acura MDX TSB years TSB lookup by model

Questions buyers ask

What is TSB B23040A?

B23040A is a service bulletin filed with NHTSA by Acura, covering 3 Acura models across the 2005–2012 model years. NHTSA's summary reads: Service News - The navigation clock and date are incorrect. This is due to a limited GPS receiver capacity resulting in rollover of internal chip memory. The rollover occurred on January 1, 2022 at 12:00AM local time

Which vehicles does B23040A cover?

NHTSA's file names Acura MDX (2005–2009); Acura RDX (2007–2012); Acura TL (2007–2008). 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 B23040A a recall, and is the repair free?

No. B23040A 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 B23040A?

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 B23040A, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

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 B23040A. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.