Dodge bulletin 1807923
What it saysEngine Misfire P0300, P0301, P0302, P0303, P0304 Customers may experience a Malfunction Indicator Lamp (MIL) illumination. NHTSA’s full summary ↓
Dodge filed this with NHTSA as a service bulletin dated Jun 29, 2023, received Aug 21, 2023, about the engine. 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 communicationEngine Misfire P0300, P0301, P0302, P0303, P0304 Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0300 - Random Engine Misfire.8 ? P0301 - Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. Customers may also experience: ? Poor running/Engine misfire. This bulletin involves replacing the spark plugs.
Trouble codes it names: P0300 P0301 P0302 P0303 P0304
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 1807923 | Service bulletin | Jun 29, 2023 | 10241133 | 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 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 26 complaints with NHTSA since 2015. 10 of them name Electrical 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.
I am having continual failures of the electronic door lock/linkage that causes the door to no open from either the interior or exterior of the vehicle. The door latch has been replaced twice on the driver door, once on the rear driver side, the passenger rear is going to be replaced this week, and the passenger front is starting to make…
2023 Dodge Hornet · Electrical System · filed with NHTSA Apr 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 engine
Source: same model, same component group14 other manufacturer communications filed against the Dodge Hornet under the same component group (engine), newest first. The eight newest are listed; the rest are on the Dodge list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2609000010 | Service bulletin | Jun 30, 2026 | Mis-Machined Engine Block |
| 9100852 | Service bulletin | Jun 30, 2026 | When long block is received, inspection needs to be performed per SOL S2609000010 before the repair begins. If the block machining is not co… |
| 112640 | Service bulletin | Jun 30, 2026 | THROTTLE BODY – NONE |
| 112639 | Service bulletin | Jun 30, 2026 | THROTTLE BODY – NONE |
| S2607000003 | Service bulletin | Feb 12, 2026 | GMET4 DOHC Water Pump Coolant Leak Inspection |
| 08-042-26 | Service bulletin | Feb 5, 2026 | Flash: Auxiliary Hybrid Control Processor Customers may experience the following: SYMPTOM: ● **The vehicle is not performing a scheduled cab… |
| 9100723 | Service bulletin | Nov 7, 2025 | 1.Identify Customer Concern Check for small traces of coolant near the water pump, especially around the weeper chamber. Confirm if coolant… |
| 9100325 Rev 1 | Service bulletin | Oct 2, 2025 | Before replacing any parts please refer to SOL S2518000008 if it applies to the vehicle you are working on based on a VIN search in Service… |
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 1807923 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 1807923 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 1807923 cover?
The manufacturer filed it against 1 model year: 2023 Dodge Hornet. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.