Jeep bulletin 08-078-25
What it saysRSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle… NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Dec 18, 2025, received Mar 25, 2025, about the electrical system — 4 documents under this number: 08-078-25 REV. C, 08-078-25 REV. B, 08-078-25 REV. A and 1 more. It names 1 model year (2024). 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 communicationRSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● **P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance.** ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● Vehicle not shutting off and a draining 12V battery.** ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown This bulletin involves reprogramming the IDCM, BPCM, MCP A, MCP B and the EVCU with the latest available software and then, if needed, performing a Wheel End Disconnect Position Learn routin
Trouble codes it names: P1614 P2D3A U029A all 3 read from the document itself; NHTSA’s summary names none
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 08-078-25 REV. C | Service bulletin | Dec 18, 2025 | 11026774 | |
| 08-078-25 REV. B | Service bulletin | Jul 10, 2025 | 11020738 | |
| 08-078-25 REV. A | Service bulletin | Apr 30, 2025 | 11018064 | PDF, 323 KB |
| 08-078-25 | Service bulletin | Mar 20, 2025 | 11015900 | PDF, 144 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-17-90 | Inspect IDCM, BPCM, MCPA, MCPB, and EVCU Module Software Levels | 0.2 hrs |
Read by machine from the document NHTSA serves (6 pages), read Sep 30, 2026. A part number is shown only where it matches Jeep’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 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 98 complaints with NHTSA since 2015. 56 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.
While driving the Wagoneer it shut down in the middle of road while at a stop light, and did a “hard” reset where all the systems had to boot back up before being able to start the Jeep. I reached out to local Jeep and to Service, and was told to bring it down so that they could run a scan.
2024 Jeep Wagoneer · Electrical System · filed with NHTSA Nov 1, 2026 · ODI 11774976
In depth: 2024 Jeep Wagoneer 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 group275 other manufacturer communications filed against the Jeep Wagoneer under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 08-405-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-404-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-403-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-402-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| S2508000037 REV. A | Service bulletin | Oct 22, 2026 | No Start, Passive Entry Inoperative |
| 9100944 | Service bulletin | Oct 15, 2026 | FUSE BLOCK RR - PWR DISTRIBUTI A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. B… |
| 9100943 | Service bulletin | Oct 15, 2026 | FUSE BLOCK UNDERHOOD - PWR DIS A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. B… |
| 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… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 08-078-25 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 08-078-25 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 08-078-25 cover?
The manufacturer filed it against 1 model year: 2024 Jeep Wagoneer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.