Mitsubishi bulletin TSB-23-00-020
What it saysThis Technical Service Bulletin provides service manual corrections for the service procedures in the following sections: General Information; PHEV-ECU; Battery Management and Traction Battery; HVAC System; Exterior… NHTSA’s full summary ↓
Mitsubishi filed this with NHTSA as a service bulletin dated Nov 21, 2023, received Dec 6, 2023, about the power train. It names 1 model year (2023). 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 Technical Service Bulletin provides service manual corrections for the service procedures in the following sections: General Information; PHEV-ECU; Battery Management and Traction Battery; HVAC System; Exterior Lighting System; Body Control System; Power Control System; Driver Assistance System; Circuit Diagram.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB-23-00-020 | Service bulletin | Nov 21, 2023 | 10246272 | PDF, 1,268 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| MB992745 | — | — | |
| MB992747 | — | — | |
| MB992748 | — | — | |
| MB991223 | — | — |
Read by machine from the document NHTSA serves (31 pages), read Sep 30, 2026. A part number is shown only where it matches Mitsubishi’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 58 complaints with NHTSA since 2015. 24 of them name Electrical System, 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.
Check engine light is on. My car is still under 5 year bumper to bumper warranty. My local mitsubishi dealership closed and the nearest one is hours away. I also have a recall. I have called mitsubishi customer service several times only to be put on hold without the ability to talk to someone to get these problems solved
2023 Mitsubishi Outlander · Electrical System · filed with NHTSA Jul 9, 2025 · ODI 11672356
The contact owns a 2023 Mitsubishi Outlander PHEV. The contact stated while driving at various speeds, the vehicle lost automotive power. The check engine warning light was illuminated. The vehicle was taken to a local dealer; however, the vehicle was not diagnosed. The vehicle was not repaired.
2023 Mitsubishi Outlander · Engine · filed with NHTSA Apr 30, 2025 · ODI 11657700
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 power train
Source: same model, same component group9 other manufacturer communications filed against the Mitsubishi Outlander under the same component group (power train), newest first. The eight newest are listed; the rest are on the Mitsubishi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB-26-23-001 | Service bulletin | Jun 18, 2026 | This revised Technical Service Bulletin sent to dealers provides the procedure for the transaxle replacment. |
| TSB-25-27-001 | Service bulletin | Jun 18, 2026 | This Technical Service Bulletin sent to dealers addresses the issue of abnormal noise and vibration from the rear differential assembly and… |
| TIN-25-27-001 | Service bulletin | Nov 4, 2025 | This Technical Information Notice informs dealers that MMNA is investigating reports of abnormal noise/vibration from the rear differential… |
| TSB-24-23-005 | Service bulletin | Sep 9, 2024 | Service Manual Revision -This Technical Service Bulletin provides correction to the instruction procedure for the Proportional Valve Check i… |
| TSB-24-23-004 | Service bulletin | Jun 3, 2024 | Service Manual Revision - This Technical Service Bulletin provides corrections to the description of special tools used to install the oil s… |
| TSB-20-23-001RV4 | Service bulletin | Mar 25, 2024 | Service Manual Revision - This Technical Service Bulletin instructs dealers to diagnose and test drive vehicles exhibiting a shudder or surg… |
| TSB-20-23-001REV | Service bulletin | Mar 4, 2024 | Service Manual Revision - This Technical Service Bulletin instructs dealers to diagnose and test drive vehicles exhibiting a shudder or surg… |
| TSB-24-23-001 | Service bulletin | Feb 14, 2024 | Service Manual Revision - This Technical Service Bulletin provides the procedure for diagnostic trouble code and on-vehicle service for belt… |
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-23-00-020 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-23-00-020 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. Every Mitsubishi warranty extension on file lists the ones Mitsubishi has filed.
Which vehicles does TSB-23-00-020 cover?
The manufacturer filed it against 1 model year: 2023 Mitsubishi Outlander. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.