Mitsubishi bulletin TSB-26-14-001
What it saysThis revised Technical Service Bulletin sent to dealers provides instructions to reflash the Engine Control Unit with updated software when a diagnostic code of P0128-00 is found. NHTSA’s full summary ↓
Mitsubishi filed this with NHTSA as a service bulletin dated Jun 25, 2026, received Apr 8, 2026, about the engine — 4 documents under this number. It names 1 model year (2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis revised Technical Service Bulletin sent to dealers provides instructions to reflash the Engine Control Unit with updated software when a diagnostic code of P0128-00 is found.
Trouble codes it names: P050A all 1 read from the document itself; NHTSA’s summary names none
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB-26-14-001 | Service bulletin | Jun 25, 2026 | 11034799 | |
| TSB-26-14-001 | Service bulletin | May 22, 2026 | 11033794 | |
| TSB-26-14-001 | Service bulletin | Apr 6, 2026 | 11032443 | not found |
| TSB-26-14-001 | Service bulletin | Mar 20, 2026 | 11031142 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 5 complaints with NHTSA since 2015. 3 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
This is the issue I’m having with this vehicle since I purchased it July3,2026 car shuts off in middle of road and car also loss of power in middle of road while still trying to press gas then jerks backfire issue was reported to dealership. Brand new vehicle but keep having issues that’s not being reported
2026 Mitsubishi Outlander · Engine · filed with NHTSA Aug 21, 2026
ENGINE MALFUNCTION SERVICE NOW APPEARED (ERROR) I took the vehicle to the dealership for evaluation. The mechanic checked, reset, and reprogrammed the module. I was instructed to return if the error occurred. It did after driving 5 miles. The mechanic rechecked for possibly having different errors.
2026 Mitsubishi Outlander · Engine · filed with NHTSA Jun 6, 2026
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group14 other manufacturer communications filed against the Mitsubishi Outlander under the same component group (engine), newest first. The eight newest are listed; the rest are on the Mitsubishi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SC-26-003 | Service campaign | Aug 19, 2026 | This Service Campaign Bulletin sent to dealers provides instructions to reflash the ECU to address fault codes P0128-00, P2096-00 and P050A. |
| SC-26-002 | Service campaign | Jul 31, 2026 | This Service Campaign Bulletin sent to dealers provides instructions to reflash the ECU to address fault codes P0128-00, P2096-00 and P050A. |
| SC-26-001 | Service campaign | Jul 7, 2026 | This Service Campaign Bulletin sent to dealers provides instructions to reflash the ECU to address fault code P0128-00, and effective 6/26/2… |
| WB2026-007 | Service bulletin | Mar 20, 2026 | This Warranty Bulletin provides instructions on submiting a warranty claim when the check engine light is on with either P2096-00 or P0128-0… |
| TIN-25-11-002 | Service bulletin | Dec 16, 2025 | This Technical Information Notice informs dealers to check for assembly lubricant seepage between the engine and transmission, and if found… |
| TSB-22-13-001REV | Service bulletin | Jan 28, 2025 | This Revised Technical Service Bulletin provides instructions to reprogram the Engine Control Module (ECU) with countermeasure software for… |
| TSB-24-16-001 | Service bulletin | May 8, 2024 | This Technical Service Bulletin provides instruction to reprogram the ECU to address an engine warning light and engine power reduction duri… |
| TSB-22-16-001REV | Service bulletin | Nov 17, 2023 | This Revised Technical Service Bulletin was sent to dealers directing them upon customer complaint basis and after diagnosis, to replace the… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Mitsubishi, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mitsubishi TSB-26-14-001 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the TSB-26-14-001 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does TSB-26-14-001 cover?
The manufacturer filed it against 1 model year: 2026 Mitsubishi Outlander. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.