Genesis warranty extension L18G
Genesis filed this with NHTSA as a warranty extension dated Jul 30, 2026, received Aug 11, 2026, about the engine — 1 document under this number: 26-01-064G DCS. It names 2 model years (2026–2027). A warranty extension is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCertain 2026MY G70 (IK) and 2027MY G80 (RG3) vehicles may exhibit a water-flowing or gurgling noise from the front center air vents during engine start-up. This condition may becaused by trapped air within the engine cooling system. Technical Service Bulletin (TSB) 26-01-064G provides instructions to properly bleed the cooling system and remove any trapped air.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26-01-064G DCS | Warranty extension | Jul 30, 2026 | 11036092 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Genesis L18G a recall?
No. A warranty extension 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 L18G repair free?
A warranty extension is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does L18G cover?
The manufacturer filed it against 2 model years: 2027 Genesis G80, 2026 Genesis GV70. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.