Jeep bulletin 18-070-26
What it saysFlash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes… NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Jul 21, 2026, received Jul 29, 2026, about the power train. It names 2 model years (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 communicationFlash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **U0104-00 - Lost Communication With Cruise Control Module (NA Market Only) (In Active or Stored status). ● U0405-00 - Invalid Data Received From Cruise Control Module (NA Market Only) (In Active or Stored status). NOTE: Vehicles setting DTCs U0405-00 and U0104-00 may experience an inability to be cleared.** ● P2AF6-00 - Dual Starter Relay Stuck (in active or stored status). ● P1CEA - Boost Side EVAP Purge System Performance (in active or stored status). ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (in active or stored status). ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1 (in active or stored status). ● P0071-00 - Ambient Air Temperature Sensor Performance (in active or stored status). ● P0325-00 - Knock/Combustion Vibration Sensor 1 Circuit (in active or stored status). ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low (in active or stored status). ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High (in active or stored status). ● P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or (in active or stored status). ● P25E4-00 - B Camshaft Position - Unable To Achieve Locked Position Bank 1 (in active or stored status). ● U0673-00 - Lost Communication With Ion Sense Module (in active or stored status). ● P05BD-00 - Stop-Start Mode Switch Range/Performance (in active or stored status). ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/stuck Off (in active or stored status). ● P0116-00 - Engine Coolant Temperature Sensor 1 Performance (in active or stored status). ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking (in active or stored status). ● P0330-00 - Knock/Combustion Vibration Sensor 2 Circuit (in active or stored status). This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.
Trouble codes it names: P1CEA P00F3 P0300 2 of 3 read from the document itself
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-070-26 | Service bulletin | Jul 21, 2026 | 11035320 |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-06-DT | Module, Powertrain Control (PCM) - Inspect Software Level | 0.2 hrs |
| 18-19-06-DU | Module, Powertrain Control (PCM) - Inspect and Reprogram | 0.3 hrs |
Read by machine from the document NHTSA serves (4 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 2 model years this bulletin names have filed 120 complaints with NHTSA since 2015. 29 of them name 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.
The contact owns a 2024 Jeep Wagoneer S. The contact stated that while the vehicle was parked, the vehicle unexpectedly shifted to reverse(R) and rolled backwards unintendedly at approximately 10 MPH. The brake pedal was pumped several times to stop the vehicle.
2024 Jeep Wagoneer · Power Train · filed with NHTSA Jul 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 power train
Source: same model, same component group62 other manufacturer communications filed against these Jeep models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 114026 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 80D The powertrain modules software on about 3,300… |
| 114025 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the a… |
| 114023 | Service campaign | Aug 12, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 74D SYMPTOM DESCRIPTION The powertrain modules software… |
| 08-312-26 | Service bulletin | Aug 7, 2026 | Powertrain Modules Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exh… |
| 79D | Service campaign | Aug 1, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Powertrain Modules Software Update 79D The powertrain modules software on about 36 of the a… |
| 74D | Service campaign | Aug 1, 2026 | CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA 74D Powertrain Modules Software Update The powertrain modules software on about 18,900 of t… |
| 08-289-26 | Service bulletin | Jul 30, 2026 | Transmission Control Module (TCM) Diagnostic Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must S… |
| 9100870 | Service bulletin | Jul 27, 2026 | DIFFERENTIAL Rear Axle If replacing the Rear axle and going from AA to AC level, the bolt hole on the top of the axle will not have threads… |
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 18-070-26 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 18-070-26 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 18-070-26 cover?
The manufacturer filed it against 2 model years: 2024 Jeep Grand Wagoneer, 2024 Jeep Wagoneer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.