Ram bulletin 93335
What it saysWarranty Bulletin D-22-16 - (X97) Diesel Particulate Filter (DPF) Select 2021 - 2022 Ram 2500 Pickup (DJ), 2021 - 2022 Ram 3500 Cab Chassis (DD), 2021 - 2022 Ram 3500 Pickup (D2) and 2021 - 2022 Ram 4500/5500 Cab… NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Sep 7, 2023, received Oct 30, 2023, about the fuel/propulsion system — 2 documents under this number. It names 8 model years (2021–2022). 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.
Get the next Ram bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWarranty Bulletin D-22-16 - (X97) Diesel Particulate Filter (DPF) Select 2021 - 2022 Ram 2500 Pickup (DJ), 2021 - 2022 Ram 3500 Cab Chassis (DD), 2021 - 2022 Ram 3500 Pickup (D2) and 2021 - 2022 Ram 4500/5500 Cab Chassis (DP) (Rev. A)
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 93335 | Service bulletin | Sep 7, 2023 | 10248586 | not found |
| 93335 | Service bulletin | Sep 7, 2023 | 10244425 | not found |
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 themAlso filed against model years this site has no page for: 2021 Ram 4500; 2022 Ram 4500; 2021 Ram 5500; 2022 Ram 5500.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Ram bulletins for one of these models
A weekly email, sent only in a week when Ram files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 543 complaints with NHTSA since 2015. 37 of them name Fuel/Propulsion System — 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.
DEF sensor malfunctions, threatening to limit vehicle to 5 mph or stop completely. This is because DEF fluid freezes in cold weather. Sensor reads that DEF tank is empty, even when it is full. Contacted local dealer who confirmed the issue and noted that it is a prevalent problem and he has a backlog of trucks with the same issue.
2022 Ram 2500 · Fuel/Propulsion System · filed with NHTSA Mar 7, 2022 · ODI 11455502
I took the vehicle to the dealer for recall Manufacturer Recall Number13A NHTSA Recall Number23V-060 The dealer told me that they can only order one per week. I will have to wait over a year for the part to come in. This is a fire hazard and I have been advised to not park the vehicle in the garage or near other vehicles.
2021 Ram 3500 · Fuel/Propulsion System · filed with NHTSA Jul 18, 2023 · ODI 11533101
The contact owns a 2021 Ram 2500. The contact stated that upon driving several miles and refueling the vehicle, he noticed that the Diesel Exhaust Fluid (DEF) additive gauge remained stuck in the same position. There was no warning light illuminated.
2021 Ram 2500 · Fuel/Propulsion System · filed with NHTSA Jan 18, 2023 · ODI 11502369
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 fuel/propulsion system
Source: same model, same component group16 other manufacturer communications filed against these Ram models under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2625000006 | Service bulletin | Oct 19, 2026 | EVIC Message "service DEF system see dealer" and Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTC)s P218F, P202E… |
| 113783 | Service bulletin | Jul 30, 2026 | MODULE & MODULE KIT - FUEL PUMP/LEVEL UNIT |
| 9100833 REV1 | Service bulletin | Jul 6, 2026 | Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and driv… |
| 9100833 | Service bulletin | Jun 17, 2026 | Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and driv… |
| 14-004-26 | Service bulletin | Apr 16, 2026 | Water In Fuel (WIF) Indicator Light Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM:… |
| S2525000002 REV. A | Service bulletin | Mar 31, 2026 | Diesel Exhaust Fluid (DEF) Gauge Fluctuates Or Is Erratic. Diagnostic Trouble Code (DTC) P203F – Reductant Level Too Low. |
| S2514000002 REV. A | Service bulletin | Mar 31, 2026 | Longer Than Expected, Extended Crank Time After Fuel Level Run Too Low Or After Fuel Filter/System Servicing. Some customers may experience… |
| 14-001-26 | Service bulletin | Mar 10, 2026 | Fuel Leaking From Fuel Heater Harness Connector Customers may comment on the following: SYMPTOM: ● Fuel is leaking. This bulletin involves i… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ram, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ram 93335 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 93335 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 93335 cover?
The manufacturer filed it against 8 model years: 2022 Ram 2500, 2021 Ram 2500, 2022 Ram 3500, 2021 Ram 3500, 2021 Ram 4500, 2022 Ram 4500 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.