TSB TSB-26-54-003 — Mitsubishi Service bulletin
TSB-26-54-003 is a service bulletin on file with NHTSA for the Mitsubishi Outlander, 2025–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This Technical Service Bulletin sent to dealers provides guidance to assist dealers with reflashing the ECU-Audio AMP software to remedy issues with the Dynamic Sound Yamaha Ultimate 12-speaker system.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years TSB-26-54-003 names
| Vehicle | Model years |
|---|---|
| Mitsubishi Outlander | 2025, 2026 |
Every document filed under TSB-26-54-003
| Document ID | Filed | Type |
|---|---|---|
| TSB-26-54-003 | July 6, 2026 | Service bulletin |
What TSB-26-54-003 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB TSB-26-54-003?
TSB-26-54-003 is a service bulletin filed with NHTSA by Mitsubishi, covering the Mitsubishi Outlander across the 2025–2026 model years. NHTSA's summary reads: This Technical Service Bulletin sent to dealers provides guidance to assist dealers with reflashing the ECU-Audio AMP software to remedy issues with the Dynamic Sound Yamaha Ultimate 12-speaker system.
Which vehicles does TSB-26-54-003 cover?
NHTSA's file names Mitsubishi Outlander (2025–2026). 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 TSB-26-54-003 a recall, and is the repair free?
No. TSB-26-54-003 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 TSB-26-54-003?
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 TSB-26-54-003, 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 TSB-26-54-003. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.