Stellantis bulletin 21-016-25 REV. C
What it says"Valve Body Replacement Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): U0101 - Lost Communication… NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated Aug 15, 2025, received Feb 20, 2025, about the power train — 5 documents under this number: 21-016-25 REV. B, 21-016-25 REV. A, 21-016-25 (2 filings) and 1 more. It names 10 model years across Jeep and Ram (2023–2025). 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 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.
"Valve Body Replacement Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● U0101 - Lost Communication With The Transmission Control Module (TCM). ● U0402 - Implausible Data Received From TCM. ● U0418 - Implausible Data Received From Brake System Control Module 1. Customers may also comment on the following: ● Vehicle will go in limp-in mode. After the vehicle enters limp-in mode and has been shifted into Park, the vehicle will not shift into a forward or reverse gear This bulletin involves replacing the transmission valve body assembly."
Trouble codes it names: U0101 U0402
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 21-016-25 REV. C | Service bulletin | Aug 15, 2025 | 11022007 | |
| 21-016-25 REV. B | Service bulletin | Aug 7, 2025 | 11021838 | |
| 21-016-25 REV. A | Service bulletin | May 18, 2025 | 11018490 | PDF, 137 KB |
| 21-016-25 | Service bulletin | Feb 14, 2025 | 11014387 | PDF, 138 KB |
| 21-016-25 | Service bulletin | Feb 14, 2025 | 11014380 | not found |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 68661447AA | Transmission Valve Body DT-Sales Code DFR | — | eBay Motors → |
| 68612130AB | Transmission Valve Body WL-Sales Code DFT | — | eBay Motors → |
| 68611159AB | Transmission Valve Body WL-Sales Code DFW | — | eBay Motors → |
| 68612242AB | Transmission Valve Body WS-Sales Code DFR for | — | eBay Motors → |
| 68649162AA | Clamp, Exhaust Replace only as needed | — | eBay Motors → |
| 68218925AB | Transmission Fluid | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 21-95-01-90 | Valve Body - Replace WS/DT | 2 hrs |
| 21-95-01-91 | Valve Body, - Replace WL | 2.1 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Stellantis’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.
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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 9 model years
Ram 1 model year
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 10 model years this bulletin names have filed 1,695 complaints with NHTSA since 2015. 163 of them name Power Train — 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.
The contact owns a 2023 Jeep Wagoneer. The contact received notification of Customer Satisfaction Program 13B (Power Train); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2023 Jeep Wagoneer · Power Train · filed with NHTSA Apr 15, 2024
The contact owns a 2024 Jeep Wagoneer S. The contact stated that while the vehicle was parked, the vehicle unexpectedly shifted to reverse(R) and rolled backwards unintendedly at approximately 10 MPH. The brake pedal was pumped several times to stop the vehicle.
2024 Jeep Wagoneer · Power Train · filed with NHTSA Jul 2, 2026
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 power train
Source: same model, same component group168 other manufacturer communications filed against these Stellantis models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 21-062-26 | Service bulletin | Sep 25, 2026 | Transmission Rattle Customers may comment on the following: SYMPTOM: ● Rattle noise coming from the transmission. This bulletin involves ins… |
| 114026 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 80D The powertrain modules software on about 3,300… |
| 114025 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the a… |
| 114023 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 74D SYMPTOM DESCRIPTION The powertrain modules software… |
| 08-312-26 | Service bulletin | Aug 7, 2026 | Powertrain Modules Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exh… |
| 79D | Service campaign | Aug 1, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the a… |
| 74D | Service campaign | Aug 1, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA 74D Powertrain Modules Software Update The powertrain modules software on about 18,900 of t… |
| 08-289-26 | Service bulletin | Jul 30, 2026 | Transmission Control Module (TCM) Diagnostic Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must S… |
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 21-016-25 REV. C 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 21-016-25 REV. C 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 21-016-25 REV. C cover?
The manufacturer filed it against 10 model years across 2 brands (Jeep and Ram): 2025 Jeep Grand Cherokee, 2024 Jeep Grand Cherokee, 2023 Jeep Grand Cherokee, 2025 Jeep Grand Wagoneer, 2024 Jeep Grand Wagoneer, 2023 Jeep Grand Wagoneer and more. 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 29 Jun 2023 – 24 Sep 2024; built 11 Aug 2023 – 26 Sep 2024; built 3 Aug 2023 – 25 Oct 2024 — the build date is on the certification label in the driver’s door jamb.