Acura bulletin B23-022
What it saysDue to manufacturing errors, abnormal noise may be heard from the rear when driving straight or making small side-toside turning movements with the steering wheel. NHTSA’s full summary ↓
Acura filed this with NHTSA as a service bulletin dated Jun 9, 2023, received Jun 15, 2023, about the steering. It names 4 model years (2016–2019). 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 - Due to manufacturing errors, abnormal noise may be heard from the rear when driving straight or making small side-toside turning movements with the steering wheel. The MIL may also illuminate with DTC C1600-94 (PAWS unexpected behavior) and/or C1611-13/C1621-13 (PAWS actuator disconnection L&R).
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B23-022 | Service bulletin | Jun 9, 2023 | 10237815 | PDF, 1,086 KB |
What the document itself lists
The manufacturer titles it “Warranty Extension: Moaning or Rubbing Noise from P-AWS RTC”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 52345-TY2-A15 | Left RTC Actuator | 1 | eBay Motors → |
| 52340-TY2-A15 | Right RTC Actuator | 1 | eBay Motors → |
| 90213-SJ6-004 | — | — | |
| 90370-SJA-000 | — | — | |
| 90178-TY2-A01 | — | — | |
| 52345-TY2-A13 | A REPLACE RIGHT SIDE | — | eBay Motors → |
| 52340-TY2-A13 | A REPLACE LEFT SIDE | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 4191L3 | REPLACE LEFT RTC ACTUATOR– Includes DTC clear, VSA/ Steering position learn… | 1.3 hrs |
Read by machine from the document NHTSA serves (7 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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What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 20 complaints with NHTSA since 2015. 1 of them name Steering — 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.
The vehicle is equipped with 4 wheel steering. The rear wheels are controled by the computer. While maneuvering in a parking lot or after sharp turns the rear wheels do not respond to driver input. The wheels get stuck in the wrong direction and the driver must correct direction of travel to compensate.
2016 Acura RLX · Steering · filed with NHTSA Apr 25, 2021 · ODI 11413818
The contact owns a 2017 Acura RLX. The contact stated that while driving at various speeds, the vehicle pulled to the right, with a creaking sound while turning the steering wheel to the left or the right. The contact replaced the brake pads and rotors every year, but the failure persisted.
2017 Acura RLX · Steering · filed with NHTSA Jun 5, 2026 · ODI 11742249
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 steering
Source: same model, same component group1 other manufacturer communication filed against the Acura RLX under the same component group (steering), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| BBOM06092023901 | Service bulletin | Jun 9, 2023 | Dealer Message - Due to manufacturing errors, abnormal noise may be heard from the rear when driving straight or making small side-to-side t… |
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 B23-022 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 B23-022 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 B23-022 cover?
The manufacturer filed it against 4 model years: 2019 Acura RLX, 2018 Acura RLX, 2017 Acura RLX, 2016 Acura RLX. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.