Mazda warranty extension CSP11
Mazda filed this with NHTSA as a warranty extension dated Jun 21, 2025, received Nov 4, 2024, about the engine — 7 documents under this number: CSP11a Warranty, CSP11 Owner Letter, CSP11 Parts Warr, CSP11 Repair and more. It names 10 model years (2016–2020). 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 communicationDear Mazda Owner: You are receiving this notice because Mazda’s records indicate that your 2019-2020 CX-5, 2016-2020 CX-9, or 2018-2020 Mazda6 vehicle was equipped with a SKYACTIV-G 2.5T (Turbocharged) engine (“Covered Vehicle�). Mazda Motor Corporation has decided to conduct a Customer Service Program CSP (11) to inform you that Mazda is extending the limited powertrain warranty to provide necessary repairs free of charge if your Covered Vehicle has coolant leaks at the cylinder head around the exhaust manifold and to inform you that you may be eligible to receive reimbursement for past out-of-pocket expenses you previously incurred for such repairs on the terms and conditions as described below. Powertrain Warranty Extension: Mazda is extending the limited powertrain warranty to 10 years or 120,000-miles, whichever occurs first, to provide necessary repairs at no cost to you if your Covered Vehicle has coolant leaks at the cylinder head around the exhaust manifold. A dealer must inspect and confirm your Covered Vehicle is exhibiting coolant leaks at the cylinder head around the exhaust manifold matching Technical Service Bulletin 01-002/23 (Feb. 10, 2023) for you to receive the repairs at no cost to you.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CSP11a Warranty | Warranty extension | Jun 21, 2025 | 11020034 | not yet checked |
| CSP11 Owner Letter | Warranty extension | Dec 24, 2024 | 11012343 | not yet checked |
| CSP11 Parts Warr | Warranty extension | Nov 16, 2024 | 11011136 | not yet checked |
| CSP11 Repair | Warranty extension | Oct 18, 2024 | 11009660 | not yet checked |
| CSP11 Parts | Warranty extension | Oct 18, 2024 | 11009659 | not yet checked |
| CSP11 Dealer Letter | Warranty extension | Oct 18, 2024 | 11009658 | not yet checked |
| CSP11 | Warranty extension | Oct 16, 2024 | 11009661 | 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 Mazda CSP11 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 CSP11 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 CSP11 cover?
The manufacturer filed it against 10 model years: 2020 Mazda CX-5, 2019 Mazda CX-5, 2020 Mazda CX-9, 2019 Mazda CX-9, 2018 Mazda CX-9, 2017 Mazda CX-9 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.