Ram bulletin 9100933 Rev 1
What it saysPWR DIS A/C Blowing hot air or not working. NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Oct 14, 2026, received Oct 22, 2026, about the electrical system. It names 4 model years (2024–2027). 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 communicationFUSE BLOCK UNDERHOOD - PWR DIS A/C Blowing hot air or not working. A/C relay clutch not operating, dealers unnecessary replacing PDCs. Battery disconnection is required to reset PCM. Please follow SOL S2624000004.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100933 Rev 1 | Service bulletin | Oct 14, 2026 | 11038655 |
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 4 model years this bulletin names have filed 545 complaints with NHTSA since 2015. 271 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.
On the 2025 Ram 1500, the 25 owners who gave an odometer reading for Electrical System reported it at a median of 6,000 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 the driver instrument cluster screen went black. After approximately 10 seconds the theft alarm arm red light went red. Then the TPMS tire warning light lit. Then the instrument cluster screen went back to normal operation
2026 Ram 1500 · Electrical System · filed with NHTSA Mar 7, 2026 · ODI 11722680
The truck died had to jump it. I was driving it and it stopped itself went into park automatically. it turned on the parking brake. and then died. Took several minutes to start.
2024 Ram 1500 · Electrical System · filed with NHTSA Jul 22, 2024 · ODI 11603846
Brand new 2025 ram 1500 is out of alignment at 800 miles. It pulls to the right. On highway, it almost turns itself to the other lane. Major disaster maker
2025 Ram 1500 · Electrical System · filed with NHTSA Feb 7, 2025 · ODI 11641291
In depth: 2026 Ram 1500 electrical problems → · 2025 Ram 1500 electrical 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 electrical system
Source: same model, same component group302 other manufacturer communications filed against the Ram 1500 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2608000039 | Service bulletin | Oct 16, 2026 | Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration |
| 08-280-26 | Service bulletin | Oct 16, 2026 | Flash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: ● "Check Trailer Turn Lamp" message… |
| 08-376-26 | Service bulletin | Oct 15, 2026 | Blindspot Alert Unavailable Service Required Warning Message Customers must experience on one or more of the following: SYMPTOM: ● “Blindspo… |
| 9100647 | Service bulletin | Oct 14, 2026 | 68488364AC: FUSE BLOCK UNDERHO 1) False fails on PCR, DBSM and PDCs Stuck Closed or open diagnostics, DTC P2AF5 or P2AF6, leading to NTF and… |
| 08-375-26 | Service bulletin | Oct 14, 2026 | Tow Nav Menu Option Unavailable - UBQ/UBW Customers may comment on the following: SYMPTOM: ● Tow Nav menu option is grayed out and cannot be… |
| 08-372-26 | Service bulletin | Oct 9, 2026 | R1H U43.17 Software Update - FOTA Customers may experience one or more of the following: SYMPTOM: ● Screen Freeze or Radio Reset. ● Projecti… |
| 08-369-26 | Service bulletin | Oct 8, 2026 | Digital Key Control Module (DKCM) Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhi… |
| 08-139-26 REV. B | Service bulletin | Oct 8, 2026 | Flash: Radio Frequency Hub Module (RFHM) Updates Customer may experience the following: SYMPTOM: ● **Excessive Ignition Off Draw (IOD) on 12… |
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 9100933 Rev 1 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 9100933 Rev 1 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 9100933 Rev 1 cover?
The manufacturer filed it against 4 model years: 2027 Ram 1500, 2026 Ram 1500, 2025 Ram 1500, 2024 Ram 1500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.