Stellantis bulletin 9100639
What it saysVerify Reman part number availability. NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated Aug 7, 2025, received Aug 13, 2025, about the engine. It names 12 model years across Jeep and Ram (2016–2021). 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.
One page for every brand it was filed under. Each brand’s bulletins: Jeep · Ram.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationVerify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100639 | Service bulletin | Aug 7, 2025 | 11021845 |
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 themJeep 6 model years
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 databaseOwners of the 12 model years this bulletin names have filed 8,579 complaints with NHTSA since 2015. 1,919 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 2016 Ram 1500, the 226 owners who gave an odometer reading for Engine reported it at a median of 65,000 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 · ODI 11111104
Had been experiencing transmission warning lights but engine didn't produce any codes. I took to 2 different dealers and they said nothing we could do about sensor problems until code appears. While driving at night about a half mile from home my truck shut down. My engine turned off and lost my steering,lights,and dash lights.
2017 Ram 1500 · Engine · filed with NHTSA Nov 6, 2017 · ODI 11043613
Making a right hand turn into school parking lot at 7:11 am this morning the engine died, steering went stiff and emergence parking break set. Almost caused a very serious accident with injury's to multiple minors. Was moving 11 MPH with my foot on the brake into the right turn, when I let off the brake the engine died.
2021 Ram 1500 · Engine · filed with NHTSA May 24, 2021 · ODI 11418271
In depth: 2021 Jeep Grand Cherokee engine problems → · 2020 Jeep Grand Cherokee engine problems → · 2019 Jeep Grand Cherokee engine problems → · 2018 Jeep Grand Cherokee engine problems →
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 group142 other manufacturer communications filed against these Stellantis models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 9100949 | Service bulletin | Oct 20, 2026 | oil filter If an engine oil leak develops from gasket of a newly installed MOPAR engine oil filter, please replace it with an equivalent BPr… |
| 09-027-26 | Service bulletin | Oct 17, 2026 | Engine Coolant Leak The customer may comment on the following: SYMPTOM: ● There is an external coolant leak near the exhaust side of the eng… |
| 115202 | Service campaign | Oct 14, 2026 | Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification |
| 18-079-26 | Service bulletin | Oct 7, 2026 | Flash: Powertrain Control Module (PCM) Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination, and the vehicle may… |
| 18-015-26 | Service bulletin | Oct 7, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may… |
| 66D Combo Rev2 | Service campaign | Oct 7, 2026 | Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification |
| 09-013-26 | Service bulletin | Sep 30, 2026 | Engine Runs Rough Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or m… |
| S2609000006 | Service bulletin | Sep 29, 2026 | P000B Bank 1 Cam 2 Position Slow Response - Malfunction Indicator Light (MIL) - Check Engine Light (CEL) |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep and Ram, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Stellantis 9100639 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 9100639 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 Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does 9100639 cover?
The manufacturer filed it against 12 model years across 2 brands (Jeep and Ram): 2021 Jeep Grand Cherokee, 2020 Jeep Grand Cherokee, 2019 Jeep Grand Cherokee, 2018 Jeep Grand Cherokee, 2017 Jeep Grand Cherokee, 2016 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.