Dodge bulletin 18-035-26
What it saysFlash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. NHTSA’s full summary ↓
Dodge filed this with NHTSA as a service bulletin dated Jun 13, 2026, received Mar 5, 2026, about the power train — 2 documents under this number: 18-035-26 REV. A and 1 more. It names 1 model year (2023). 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 communicationFlash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0300 - Multiple Cylinder Misfire. ● P0301 - Cylinder 1 Misfire. ● P0302 - Cylinder 2 Misfire. ● P0303 - Cylinder 3 Misfire. ● P0304 - Cylinder 4 Misfire. ● P0305 - Cylinder 5 Misfire. ● P0306 - Cylinder 6 Misfire. ● P0307 - Cylinder 7 Misfire. ● P0308 - Cylinder 8 Misfire. ● P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2. Customers may comment on or experience the following: ● A rough idle condition. This bulletin involves reprogramming the PCM with the latest available software.
Trouble codes it names: P0300 P0301 P0302 P0303
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-035-26 REV. A | Service bulletin | Jun 13, 2026 | 11033947 | |
| 18-035-26 | Service bulletin | Feb 28, 2026 | 11029760 |
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 43 complaints with NHTSA since 2015. 4 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.
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 group18 other manufacturer communications filed against the Dodge Challenger under the same component group (power train), newest first. The eight newest are listed; the rest are on the Dodge list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2621000004 | Service bulletin | Sep 30, 2026 | The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tec… |
| S2621000003 | Service bulletin | Mar 9, 2026 | The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8… |
| 21-009-25 REV. B | Service bulletin | Jul 4, 2025 | "850RE D Clutch Repair **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,26… |
| 18-030-25 | Service bulletin | Jun 12, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers may experience one or more of the following: ● Air conditioner is inoperative when… |
| 9100570 | Service bulletin | May 12, 2025 | "Transmission Fluid Please note fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason f… |
| 9100390 Rev 1 | Service bulletin | Mar 17, 2025 | D Clutch Repair Kit TSB 21-039-24 REV A - D-Clutch repair kit missing Carrier Output Shaft Seals It has been identified the Carrier Output S… |
| 18-090-24 | Service bulletin | Dec 19, 2024 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 21-039-24 REV. H | Service bulletin | Dec 14, 2024 | "D Clutch Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may fin… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Dodge, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Dodge 18-035-26 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 18-035-26 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 18-035-26 cover?
The manufacturer filed it against 1 model year: 2023 Dodge Challenger. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.