Honda bulletin A21-047
What it says"Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from… NHTSA’s full summary ↓
Honda filed this with NHTSA as a service bulletin dated Feb 20, 2025, received May 5, 2021, about the power train — 6 documents under this number. It names 5 model years (2016–2020). 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 communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
"Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first. If the PCM software was previously updated in service bulletin 21-046, Product Update: 2016-20 HR-V Software Update and CVT Inspection, the warranty extension applies, since the CVT primary drive belt is now a OBD-monitored part due to the addition of DTC P271E."
Trouble codes it names: P271E
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A21-047 | Service bulletin | Feb 20, 2025 | 11015013 | PDF, 2,983 KB |
| A21-047 | Service bulletin | May 3, 2023 | 10236086 | PDF, 4,149 KB |
| A21-047 | Service bulletin | Dec 16, 2021 | 10205453 | not found |
| A21-047 | Service bulletin | Aug 11, 2021 | 10200409 | not found |
| A21-047 | Service bulletin | Jun 1, 2021 | 10196768 | PDF, 2,910 KB |
| A21-047 | Service bulletin | Apr 27, 2021 | 10191761 | PDF, 2,644 KB |
What the document itself lists
The manufacturer titles it “Warranty Extension: 2016-20 HR-V CVT Premature Belt Deterioration”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 06200-52P-A02RM | Transmission Assembly | 1 | eBay Motors → |
| 06200-52N-A04RM | Transmission Assembly | 1 | eBay Motors → |
| 06200-52P-A70RM | Transmission Assembly | 1 | eBay Motors → |
| 20031-52N-A02 | — | — | |
| 20031-52P-A02 | — | — | |
| 20031-52P-A70 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 218102 | Transmission and torque converter exchange | 5 hrs |
Read by machine from the document NHTSA serves (23 pages), read Oct 4, 2026. A part number is shown only where it matches Honda’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 5 model years this bulletin names have filed 854 complaints with NHTSA since 2015. 197 of them name Power Train, 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.
On the 2016 Honda HR-V, the 34 owners who gave an odometer reading for Power Train reported it at a median of 79,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
07/06/2020- around 12: 32 PM, my car suddenly didn't work/stopped as i'm about to turn left on an intersection . The steering was locked. Prior to that the dashboard gave me the following warning signs: * battery charge warning light * check charge system * brakes * ABS * traction control or ESP this situation LED me to call the police…
2019 Honda HR-V · Engine · filed with NHTSA Nov 7, 2020 · ODI 11373578
While operating an unmodified 2019 AWD Honda Hr-V per the included owner's guide (page 86), the brake pedal was required during 100% of a 15 mile descent to maintain the vehicle"s speed within the posted 35 MPH speed limit. The engine braking promised, in the "l" gear selector, by honda's owner's guide was lacking.
2019 Honda HR-V · Power Train · filed with NHTSA Jan 5, 2020 · ODI 11297210
Driving 65 on freeway, power loss and all the lights came on. pulled over and put it in park, dash said i was still in N and i took my foot off brake and it was rolling. I shut car off and waited so i could get to safer place. was able to start up - with all lights flashing.
2020 Honda HR-V · Power Train · filed with NHTSA Feb 12, 2024 · ODI 11571518
In depth: 2016 Honda HR-V transmission and drivetrain problems →
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 group1 other manufacturer communication filed against the Honda HR-V under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| A23110A | Service bulletin | Nov 3, 2023 | Service News - Some customers have complained of fluid leaking from the rear differential after it has been serviced due to over-torqueing o… |

Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Honda, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Honda A21-047 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 A21-047 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 A21-047 cover?
The manufacturer filed it against 5 model years: 2020 Honda HR-V, 2019 Honda HR-V, 2018 Honda HR-V, 2017 Honda HR-V, 2016 Honda HR-V. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.