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Manufacturer communication · Service bulletin

Jeep bulletin 09-015-25

What it says"Spark Knock/Engine Symptoms Customers may experience the following: Knocking or pinging noise coming from the engine upon acceleration. NHTSA’s full summary ↓

Jeep filed this with NHTSA as a service bulletin dated Jun 13, 2025, received Jun 18, 2025, about the engine. It names 13 model years (2018–2022). 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 communication

"Spark Knock/Engine Symptoms Customers may experience the following: ● Knocking or pinging noise coming from the engine upon acceleration. This bulletin involves cleaning the piston heads and cylinder head combustion chambers to resolve a spark knock condition being caused by oil intrusion through the PCV system."

Kind Service bulletin Manufacturer date Jun 13, 2025 Received by NHTSA Jun 18, 2025 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
09-015-25Service bulletinJun 13, 202511019618PDF, 140 KB

What the document itself lists

Parts the bulletin names

Part numberDescriptionQtyFind it
68609110ABPCV Valve—eBay Motors →
06509564AACylinder Head Bolts—eBay Motors →
68284905AACylinder Head Gaskets-Left—eBay Motors →
68284904AACylinder Head Gaskets-Right—eBay Motors →
68153921AAAntifreeze, Coolant—eBay Motors →
68218950ABOil-0W20eBay Motors →
68191349ACOil Filter—eBay Motors →
04893804ABValve Cover Gasket-Right—eBay Motors →
04893805ABValve Cover Gasket-Left—eBay Motors →
68082860AB——
68217514ABUpper Intake Gaskets—eBay Motors →
68232614AALower Intake Gaskets—eBay Motors →
04861965AAEGR Cooler Gaskets—eBay Motors →
68093232AAConverter Gaskets—eBay Motors →
68078604AATiming Cover Gasket—eBay Motors →
68079589AAFront Crankshaft Seal—eBay Motors →
04893806ABCamshaft Phaser—eBay Motors →
05184772ABCamshaft Sensor Gasket—eBay Motors →

Labour operation and the time the manufacturer allows

OperationDescriptionTime
09-35-30-67ESS Equipped0.5 hrs

Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Jeep’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.

Model years it names

Source: as the manufacturer filed them

A 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 database

Owners of the 13 model years this bulletin names have filed 7,848 complaints with NHTSA since 2015. 1,047 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.

On the 2018 Jeep Grand Cherokee, the 51 owners who gave an odometer reading for Engine reported it at a median of 20,526 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

While driving on the road the engine shuts completely off right in the middle of traffic which is extremely dangerous!!!...message displays on the screen where the speedometer is "shift to p to start". It has happened 3x yesterday and about a week ago once. Took to Jeep dealer yesterday and they are still investigating the issue

2018 Jeep Grand Cherokee · Engine · filed with NHTSA Jul 13, 2018

The contact owns a 2021 Jeep Wrangler 4XE. The contact stated while driving at an undisclosed, the check engine warning light illuminated. The accelerator pedal was depressed, but the vehicle failed to accelerate as intended, hesitated and jerked. The vehicle was taken to the dealer however, the failure could not be duplicated.

2021 Jeep Wrangler · Engine · filed with NHTSA Nov 24, 2025

As I was exiting the highway I noticed that flames were coming out of the Jeep. I merged two lanes over to try to turn on a side street and lost control of the steering. I put the Jeep in park, turned it off, and exited the vehicle. We ran up a near by hill, turned around and the entire Jeep was engulfed with flames.

2018 Jeep Wrangler · Engine · filed with NHTSA Apr 8, 2018

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 group

104 other manufacturer communications filed against these Jeep models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Jeep list.

NumberKindDatedNHTSA’s summary
09-023-26Service bulletinSep 25, 2026Umbrella Valve Seal Missing From Cylinder Head Cover Vehicle may exhibit a MIL-ON. SYMPTOM: Upon inspection the technician may find that one…
S2609000011Service bulletinSep 11, 2026MIL-On and/or Engine Oil Leak
9100363 Rev 3Service bulletinAug 26, 2026Turbocharger Kit Please note many parts of the Turbo Assembly can be serviced separately and complete turbo replacement may not be necessary…
ID-26-38 REV.AWarranty extensionAug 25, 2026ID-26-38 Rev. A Dealer Incentive for the Completion of Customer Satisfaction Notification 66D
D-26-18 REV.AWarranty extensionAug 25, 2026D-26-18 Rev. A Dealer Incentive for the Completion of Customer Satisfaction Notification 66D
114238Warranty extensionAug 24, 2026Dealer Incentive for the Completion of Customer Satisfaction Notice (CSN) 66D
114236Warranty extensionAug 24, 2026Dealer Incentive for the Completion of Customer Satisfaction Notice (CSN) 66D
S2618000003Service bulletinAug 21, 2026MIL-On, Engine Runs Rough

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Jeep 09-015-25 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 09-015-25 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.

Which vehicles does 09-015-25 cover?

The manufacturer filed it against 13 model years: 2022 Jeep Gladiator, 2021 Jeep Gladiator, 2020 Jeep Gladiator Pickup, 2022 Jeep Grand Cherokee, 2021 Jeep Grand Cherokee, 2020 Jeep Grand Cherokee and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.