Jeep bulletin 18-005-26 REV. A
What it saysFlash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs)… NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Feb 17, 2026, received Feb 4, 2026, about the electrical system — 2 documents under this number: 18-005-26 and 1 more. It names 1 model year (2021). 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 must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation. (NA Only) (Manual Transmission Only) ● P152F – Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. (NA Only)** ● P0300 - Multiple Cylinder Misfire. Customers may also comment on one or more of the following: ● **"Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection. (NA Only) (Manual Transmission Only) NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC. ● Vehicle is in limp home mode. (NA Only)** ● Spark knock/detonation sound from the engine at idle. **Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability. (NA Only)** This bulletin involves reprogramming the PCM with the latest available software.
Trouble codes it names: P08A6 P152F 1 of 2 read from the document itself
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-005-26 REV. A | Service bulletin | Feb 17, 2026 | 11029673 | |
| 18-005-26 | Service bulletin | Jan 29, 2026 | 11028232 |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-06-BD | Module, Powertrain Control (PCM) - Reprogram | 0.3 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 29, 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 964 complaints with NHTSA since 2015. 692 of them name Electrical System, Engine, Power Train — 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 2021 Jeep Wrangler, the 34 owners who gave an odometer reading for Electrical System reported it at a median of 29,400 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owns a 2021 Jeep Wrangler 4XE. The contact stated that while driving at 75 MPH, the vehicle lost motive power rapidly and unexpectedly. The contact pulled over to the shoulder before the vehicle stalled. The contact returned to the contact's residence safely, and the vehicle was towed to the dealer the following day.
2021 Jeep Wrangler · Electrical System · filed with NHTSA Oct 19, 2026 · ODI 11772185
The contact owns a 2021 Jeep Wrangler 4XE. The contact stated while driving at an undisclosed, the check engine warning light illuminated. The accelerator pedal was depressed, but the vehicle failed to accelerate as intended, hesitated and jerked. The vehicle was taken to the dealer however, the failure could not be duplicated.
2021 Jeep Wrangler · Engine · filed with NHTSA Nov 24, 2025 · ODI 11701300
Only 500 miles on vehicle, went off-roading for the first time and within a short time after climbing a steep hill, smoke came from under vehicle and clutch went to floor and stayed. Turned Jeep off, pumped clutch which seemed fine but smoke continued for a minute.
2021 Jeep Wrangler · Power Train · filed with NHTSA Feb 14, 2021 · ODI 11396161
In depth: 2021 Jeep Wrangler electrical problems → · 2021 Jeep Wrangler engine problems → · 2021 Jeep Wrangler transmission and drivetrain 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 group210 other manufacturer communications filed against the Jeep Wrangler 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 |
|---|---|---|---|
| 08-298-26 | Service bulletin | Oct 17, 2026 | Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle… |
| 9100935 | Service bulletin | Oct 14, 2026 | FUSE BLOCK - PWR DISTRIBUTION A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. Ba… |
| S2608000038 | Service bulletin | Oct 10, 2026 | High Voltage Battery Has Lower SOC After Overnight Sleep Cycle |
| 08-367-26 | Service bulletin | Oct 9, 2026 | Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 08-366-26 | Service bulletin | Oct 9, 2026 | Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 08-365-26 | Service bulletin | Oct 9, 2026 | Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 08-364-26 | Service bulletin | Oct 9, 2026 | Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 08-363-26 | Service bulletin | Oct 9, 2026 | Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
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 18-005-26 REV. A 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 18-005-26 REV. A 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 18-005-26 REV. A cover?
The manufacturer filed it against 1 model year: 2021 Jeep Wrangler. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.