Acura bulletin B20-028
What it says(Repair Procedure Revision) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. NHTSA’s full summary ↓
Acura filed this with NHTSA as a service bulletin dated Sep 30, 2022, received Oct 5, 2022, about the fuel/propulsion system. It names 1 model year (2019). 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 communicationService Bulletin - (Repair Procedure Revision) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. If this occurs, the engine may not start, or the engine could stall while driving, increasing the risk of a crash. Replace the fuel pump motor.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B20-028 | Service bulletin | Sep 30, 2022 | 10222445 | PDF, 1,038 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 06170-TY2-306 | Fuel Pump Motor Kit | 1 | eBay Motors → |
| 17045-TY2-A00 | Page 3 of | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 3101HK | Replace the fuel pump motor | 1.1 hrs |
Read by machine from the document NHTSA serves (15 pages), read Oct 4, 2026. A part number is shown only where it matches Acura’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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More bulletins about the fuel/propulsion system
Source: same model, same component group4 other manufacturer communications filed against the Acura RLX under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B16-008 | Service bulletin | Sep 4, 2024 | Service bulletin - The high pressure fuel pump area chirps after the engine is warm. The high pressure fuel pump is making a chirp noise. NO… |
| B20-029 | Service bulletin | Sep 30, 2022 | Service Bulletin - (Repair Procedure Revision) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. If… |
| ONLA8E20220830 | Service bulletin | Aug 25, 2022 | Owner notification - Our records indicate that a Emissions Recall has not been completed on this vehicle. When the powertrain control module… |
| BTI&05102022901 | Service bulletin | May 10, 2022 | American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 MDXs, RLXs & TLXs with a client complaint of the Malfunction Indicat… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Acura, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Acura B20-028 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 B20-028 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 Honda warranty extension on file lists the ones Honda has filed.
Which vehicles does B20-028 cover?
The manufacturer filed it against 1 model year: 2019 Acura RLX. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.