Genesis warranty extension L16G
What it saysCertain G70 (IK) vehicles equipped with the Lambda II 3.3L T-GDI engine may exhibit coolant leakage originating from the 3-way coolant hose assembly. NHTSA’s full summary ↓
Genesis filed this with NHTSA as a warranty extension dated Jul 17, 2026, received Jul 21, 2026, about the engine — 2 documents under this number: 26-01-059G DCS, 26-01-059G TSB. It names 1 model year (2026). 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.
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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 G70 (IK) vehicles equipped with the Lambda II 3.3L T-GDI engine may exhibit coolant leakage originating from the 3-way coolant hose assembly. Technical Service Bulletin (TSB) 26-01-059G provides instructions to replace the 3-way coolant hose assembly and fitting to correct the condition.
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 |
|---|---|---|---|---|
| 26-01-059G DCS | Warranty extension | Jul 17, 2026 | 11035146 | PDF, 61 KB |
| 26-01-059G TSB | Warranty extension | Jul 17, 2026 | 11035145 | PDF, 1,306 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 25468-3L111QQH | Hose L – Coolant Nipple to 3 Way | 1 |
Read by machine from the document NHTSA serves (1 page), 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.
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 1 model year this bulletin names have filed 1 complaint with NHTSA since 2015.
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 group2 other manufacturer communications filed against the Genesis G70 under the same component group (engine), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 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… |
| L07G | Service campaign | Jan 23, 2026 | Certain G70 (IK) vehicles equipped with the 2.0T-GDI engine may illuminate the Check Engine Light as a result of DTC P019100… |
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 L16G 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 L16G 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 L16G cover?
The manufacturer filed it against 1 model year: 2026 Genesis G70. 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 12 Feb 2026 – 13 May 2026 — the build date is on the certification label in the driver’s door jamb.