Jeep bulletin 18-044-26
Jeep filed this with NHTSA as a service bulletin dated Mar 21, 2026, received Mar 25, 2026, about the engine — 2 documents under this number. It names 37 model years (2018–2026). 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.
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): â—� **P0111-00 - Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. (In Active or Stored status) â—� P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) â—� P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. (In Active or Stored status) â—� P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. (In Active or Stored status) â—� P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or. (In Active or Stored status) â—� P25E4-00 - B Camshaft Position - Unable To Achieve Locked Position Bank 1. (In Active or Stored status) â—� P05BD-00 - Stop-Start Mode Switch Range/Performance. (In Active or Stored status) â—� P0116-00 - Engine Coolant Temperature Sensor 1 Performance. (In Active or Stored status) â—� P062B-00 - Internal Control Module Fuel Injector Control Performance. (In Active or Stored status) â—� P0604-00 - Internal Control Module Random Access Memory Ram Error. (In Active or Stored status) â—� P060C-00 - Internal Control Module Main Processor Performance. (In Active or Stored status)** â—� P018B-00 - Fuel Pressure Sensor "B" Circuit Range/performance. **(In Active or Stored status)** â—� P1CEA-00 - Boost Side EVAP Purge System Performance. **(In Active or Stored status)** â—� P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. **(In Active or Stored status)** â—� P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. **(In Active or Stored status)** â—� P0300-00 - Multiple Cylinder Misfire. **(In Active or Stored status)** Customers may also experience one or more of the following: â—� **Oil Level High Warning in the Instrument Panel Cluster (IPC).** â—� Fully Autonomous Parking Assist (FAPA) is not deactivated when accelerator pedal is pressed. â—� Vehicle is not heating up fast enough at freezi
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-044-26 | Service bulletin | Mar 21, 2026 | 11030254 | not yet checked |
| 18-044-26 | Service bulletin | Mar 21, 2026 | 11030229 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 18-044-26 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 18-044-26 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 18-044-26 cover?
The manufacturer filed it against 37 model years: 2026 Jeep Cherokee, 2023 Jeep Cherokee, 2022 Jeep Cherokee, 2021 Jeep Cherokee, 2020 Jeep Cherokee, 2019 Jeep Cherokee and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.