Genesis bulletin 23-01-037HG
What it saysCertain 17-18MY Genesis G80 (DH) vehicles may exceed evaporative emissions standards due to Onboard Refueling Vapor Recovery (ORVR) system. NHTSA’s full summary ↓
Genesis filed this with NHTSA as a service bulletin dated Jun 9, 2023, received Jul 1, 2023, about the engine — 2 documents under this number. It names 4 model years (2017–2020). 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
Certain 17-18MY Genesis G80 (DH) vehicles may exceed evaporative emissions standards due to Onboard Refueling Vapor Recovery (ORVR) system. To correct this symptom, an auxiliary canister assembly between the canister and Canister Close Valve (CCV) will be installed.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-01-037HG | Service bulletin | Jun 9, 2023 | 10238378 | PDF, 1,000 KB |
| 23-01-037HG | Service bulletin | Jun 9, 2023 | 10238375 | PDF, 371 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 31410-B1500QQH | CANISTER ASSY | 1 | eBay Motors → |
| 31420-D2800 | AIR FILTER | 1 | eBay Motors → |
| 31453-D2800 | NUT–SQUARE | 1 | eBay Motors → |
| 00305-SC902G | Campaign Sticker | — | eBay Motors → |
Read by machine from the document NHTSA serves (8 pages), read Sep 30, 2026. A part number is shown only where it matches Genesis’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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the emission control for the 2020 G80 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 204 complaints with NHTSA since 2015. 39 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.
I took my car in to have a recall repair completed. A relay kit was added to the engine compartment and my car has not operated the same since. When I start my car now it idles rough and is making noises that it wasn’t making before. When I accelerate my car stalls and is sluggish.
2019 Genesis G80 · Engine · filed with NHTSA Apr 27, 2025 · ODI 11657054
2017 Genesis G80, all wheel drive, 3.8 l engine. Car was being driven on a 4 lane expressway in heavy, rush hour traffic using advanced cruise control set near speed limit. G80 was in the left lane attempting to pass a vehicle on the right. There was a vehicle ahead of the G80.
2017 Genesis G80 · Engine · filed with NHTSA Nov 24, 2019 · ODI 11282092
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 group6 other manufacturer communications filed against the Genesis G80 under the same component group (engine), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LA18 | Warranty extension | Jul 30, 2026 | Certain 2026MY G70 (IK) and 2027MY G80 (RG3) vehicles may exhibit a water-flowing or gurgling noise from the front center air vents during e… |
| L18G | Warranty extension | Jul 30, 2026 | Certain 2026MY G70 (IK) and 2027MY G80 (RG3) vehicles may exhibit a water-flowing or gurgling noise from the front center air vents during e… |
| 26-HA-002G | Service bulletin | Jun 10, 2026 | Some Genesis vehicles (listed below) equipped with Lambda-III 3.5T-GDI engines may exhibit reduced heater performance due to engine coolant… |
| 26-EE-003G | Service bulletin | Apr 18, 2026 | Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter… |
| 914G | Service campaign | Nov 13, 2025 | This notice is being sent to you as our records indicate you may have previously received an important Service Campaign notice for Genesis C… |
| 914G OL | Service campaign | Sep 20, 2025 | Genesis has become aware that some vehicles may illuminate the Check Engine Light indicator as a result of detected engine misfires. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Genesis, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Genesis 23-01-037HG 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 23-01-037HG 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 Hyundai warranty extension on file lists the ones Hyundai has filed.
Which vehicles does 23-01-037HG cover?
The manufacturer filed it against 4 model years: 2020 Genesis G80, 2019 Genesis G80, 2018 Genesis G80, 2017 Genesis G80. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built 17 Mar 2016 – 30 Apr 2018 — the build date is on the certification label in the driver’s door jamb.