# P0300 on the 2022 Jeep Gladiator

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0300

- [11031449](https://open.wenmarpro.com/bulletins/11031449), 2026-04-22: Flash: 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 \(DTCs\): ● \*\*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 \(Active or Stored status set during cold start catalyst heating\).\*\* ● P0300 \- Multiple Cylinder Misfire. ● P0032 \- O2\-Sensor 1/1 Heater Circuit High. ● P0038\-02 \- O2\-Sensor 1/2 Heater Circuit High. ● P0052\-02 \- O2\-Sensor 2/1 Heater Circuit High. ● P0058\-02 \- O2\-Sensor 2/2 Heater Circuit High. ● P0132\-02 \- O2 Sensor 1/1 Circuit High. ● P0138\-02 \- O2 Sensor 1/2 Circuit High. ● P0152\-02 \- O2 Sensor 2/1 Circuit High. ● P0158\-02 \- O2 Sensor 2/2 Circuit High. ● P2100 \- Electronic Throttle Control Motor Circuit. ● P2107 \- Electronic Throttle Control Module Processor. ● P0129 \- Barometric Pressure Out Of Range Low. China Market Only ● P08A6 \- Gear Lever Position Sensor System \- Multiple Sensor Correlation. \(Manual Transmission Only\). ● P152F \- Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. ● P1129 \- Closed Loop Fueling Not Achieved \- Bank 2 Upstream. Customers may also comment on one or more of the following: ● \*\*The vehicle has a rough idle. ● The engine has a miss. ● Noisy valvetrain.\*\* J18 FSAR\-TSB\-7200 \-2\- ● "Service Transmission" message in the Instrument Panel Cluster \(IPC\) due to clutch slip detection with the transfer case in neutral \(Manual Transmission Only\). NOTE: Customers might experience wheel spin or slippage and the PCM could
- [11030229](https://open.wenmarpro.com/bulletins/11030229), 2026-03-25: Flash: 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 \(DTCs\): ● \*\*P0111\-00 \- Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. \(In Active or Stored status\) ● P0071\-00 \- Ambient Air Temperature Sensor Performance. \(In Active or Stored status\) ● 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. \(In Active or Stored status\) ● P05BD\-00 \- Stop\-Start Mode Switch Range/Performance. \(In Active or Stored status\) ● P0116\-00 \- Engine Coolant Temperature Sensor 1 Performance. \(In Active or Stored status\) ● P062B\-00 \- Internal Control Module Fuel Injector Control Performance. \(In Active or Stored status\) ● P0604\-00 \- Internal Control Module Random Access Memory Ram Error. \(In Active or Stored status\) ● P060C\-00 \- Internal Control Module Main Processor Performance. \(In Active or Stored status\)\*\* ● P018B\-00 \- Fuel Pressure Sensor "B" Circuit Range/performance. \*\*\(In Active or Stored status\)\*\* ● P1CEA\-00 \- Boost Side EVAP Purge System Performance. \*\*\(In Active or Stored status\)\*\* ● P06DD\-00 \- Engine Oil Pressure Control Circuit Performance/Stuck Off. \*\*\(In Active or Stored status\)\*\* ● P00C6\-00 \- Fuel Rail Pressure Too Low \- Engine Cranking. \*\*\(In Active or Stored status\)\*\* ● P0300\-00 \- Multiple Cylinder Misfire. \*\*\(In Active or Stored status\)\*\* Customers may also experience one or more of the following: ● \*\*Oil Level High Warning in the Instrument Panel Cluster \(IPC\).\*\* ● Fully Autonomous Parking Assist \(FAPA\) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezi
- [11004841](https://open.wenmarpro.com/bulletins/11004841), 2024-07-17: "Flash: 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 \(DTCs\): ● P2463 \- Particulate Filter Restriction \- Soot Accumulation Bank 1. \(EE Market Only\)\*\* ● P016F \- Closed Loop Fuel Pressure Control At Limit \- Pressure Too Low. ● P025C \- Fuel Pump Module Control Circuit Low. ● P0300\-00 \- Multiple Cylinder Misfire. ● P0301\-00 \- Cylinder 1 Misfire. ● P0302\-00 \- Cylinder 2 Misfire. ● P0303\-00 \- Cylinder 3 Misfire. ● P0304\-00 \- Cylinder 4 Misfire. ● P0305\-00 \- Cylinder 5 Misfire. ● P0403\-00 \- EGR Control Circuit Open \(Disabled Fault\). ● P208B \- Reductant Pump 1 Control Performance. Other Software enhancements: ● Low speed engine idle improvements. ● Improved engine restart performance and torque response during low fuel level and/or hot ambient conditions. This bulletin involves reprogramming the PCM with the latest available software."
- [10229784](https://open.wenmarpro.com/bulletins/10229784), 2023-01-17: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more of the following DTCs: P0300 \- Multiple Cylinder Misfire. P0032 \- O2\-Sensor 1/1 Heater Circuit High. P0038 \- O2\-Sensor 1/2 Heater Circuit High. P0052 \- O2\-Sensor 2/1 Heater Circuit High. P0058 \- O2\-Sensor 2/2 Heater Circuit High. P0132 \- O2 Sensor 1/1 Circuit High. P0138 \- O2 Sensor 1/2 Circuit High. P0152 \- O2 Sensor 2/1 Circuit High. P0158 \- O2 Sensor 2/2 Circuit High. P2100 \- Electronic Throttle Control Motor Circuit. P2107 \- Electronic Throttle Control Module Processor.