TSB IN-27-14 — Acura Service bulletin

IN-27-14 is a service bulletin on file with NHTSA for the Acura TL, 2004–2008 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. ACURA: THE MALFUNCTION INDICATOR LAMP (MIL) IS ON, WITH DTC P2138 (ACCELERATOR PEDAL POSITION SENSOR A/B INCORRECT VOLTAGE CORRELATION), AND HAVE POOR PERFORMANCE IN ENGINE. MODEL 2004-2008 TL, TSX.

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

1Document filed
1Vehicle named
5Model years

Vehicles and model years IN-27-14 names

VehicleModel years
Acura TL 2004, 2005, 2006, 2007, 2008

Every document filed under IN-27-14

Document IDFiledType
IN-27-14 March 12, 2014 Service bulletin

What IN-27-14 covers

Engine, Speed control — the component vocabulary NHTSA files this communication under.

← All Acura TL TSB years TSB lookup by model

Questions buyers ask

What is TSB IN-27-14?

IN-27-14 is a service bulletin filed with NHTSA by Acura, covering the Acura TL across the 2004–2008 model years. NHTSA's summary reads: ACURA: THE MALFUNCTION INDICATOR LAMP (MIL) IS ON, WITH DTC P2138 (ACCELERATOR PEDAL POSITION SENSOR A/B INCORRECT VOLTAGE CORRELATION), AND HAVE POOR PERFORMANCE IN ENGINE. MODEL 2004-2008 TL, TSX.

Which vehicles does IN-27-14 cover?

NHTSA's file names Acura TL (2004–2008). 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 IN-27-14 a recall, and is the repair free?

No. IN-27-14 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 IN-27-14?

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 IN-27-14, 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 IN-27-14. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.