Jeep bulletin 18-008-26 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 Jun 10, 2026, received Feb 4, 2026, about the electrical system — 3 documents under this number: 18-008-26 REV. B, 18-008-26 and 1 more. It names 1 model year (2022). 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): ● **P0300 - Multiple Cylinder Misfire (Active or Stored status set during cold start catalyst heating). ● P0301 - Cylinder 1 Misfire (Active or Stored status set during cold start catalyst heating). ● P0302 - Cylinder 2 Misfire (Active or Stored status set during cold start catalyst heating). ● P0303 - Cylinder 3 Misfire (Active or Stored status set during cold start catalyst heating). ● P0304 - Cylinder 4 Misfire (Active or Stored status set during cold start catalyst heating). ● P0305-00 - Cylinder 5 Misfire (Active or Stored status set during cold start catalyst heating). ● P0306-00 - Cylinder 6 Misfire (Active or Stored status set during cold start catalyst heating).** ● P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation. (Manual Transmission Only) ● P152F – Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. Customers may also comment on one or more of the following: ● **The vehicle has a rough idle. ● The engine has a miss. ● Noisy valvetrain.** ● "Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection. (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. Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability. This bulletin involves reprogramming the PCM with the latest available software.
Trouble codes it names: P0300 P0301 P0302 P0303 P0304 P08A6
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-008-26 REV. B | Service bulletin | Jun 10, 2026 | 11033946 | |
| 18-008-26 REV. A | Service bulletin | Feb 17, 2026 | 11029676 | |
| 18-008-26 | Service bulletin | Jan 29, 2026 | 11028235 |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-06-LP | 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 400 complaints with NHTSA since 2015. 327 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 2022 Jeep Wrangler, the 23 owners who gave an odometer reading for Electrical System reported it at a median of 30,000 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 2022 Jeep Wrangler. The contact stated that while operating the vehicle the check engine warning light had remained illuminated. The vehicle was taken to the local dealer who unable to determine the cause of the check engine light and the vehicle was not repaired. The manufacturer was not yet contacted.
2022 Jeep Wrangler · Electrical System · filed with NHTSA May 21, 2026
Svc 4wd light went on in the car after start-up, and i tried to reverse from my parking spot with the wheel turned and it felt like the emergency brakes were on. I stopped to check and they were not. i tried to reverse again and the car starts making a grinding noise and jerking motion as it pulls out slowly.
2022 Jeep Wrangler · Power Train · filed with NHTSA Oct 27, 2022
Vehicle would not start. Drove to a distant High School. Parked. Went to leave and the vehicle will not start. I had to have the vehicle towed to the dealership. I have been advised that it is a Hybrid Engine Coupling. There were no warning lights
2022 Jeep Wrangler · Engine · filed with NHTSA Oct 21, 2022
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 group203 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 |
|---|---|---|---|
| 114749 | Service bulletin | Sep 23, 2026 | CHARGER - BATTERY |
| OTHERDOC_177 | Other | Sep 8, 2026 | Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following:- Navigation Stability… |
| 9100900 | Service bulletin | Sep 8, 2026 | Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| 08-298-26 | Service bulletin | Aug 8, 2026 | Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle… |
| 113929 | Warranty extension | Aug 6, 2026 | EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehi… |
| ID-26-37 | Warranty extension | Jul 31, 2026 | ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT) |
| D-26-17 | Warranty extension | Jul 31, 2026 | D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT) |
| 9100872 | Service bulletin | Jul 27, 2026 | Display Exchange part has been superseded. Order the latest Z part number: Z8607669AC --> Z8791155AA (Active Exchange Part) Z8607669AD --> Z… |
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 18-008-26 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 18-008-26 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.
Which vehicles does 18-008-26 REV. A cover?
The manufacturer filed it against 1 model year: 2022 Jeep Wrangler. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.