{"vehicle":{"id":"2023_jeep_gladiator","year":2023,"make":"Jeep","model":"Gladiator"},"code":"P0300","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":5,"bulletins":[{"nhtsa_id":11031450,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-22","date":"2026-04-16","document_id":"18-045-26","mfr_campaign":null,"component":"POWER TRAIN; ENGINE","summary":"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): ● **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. ● P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. ● P1129 - Closed Loop Fueling Not Achieved - Bank 2 Upstream. ● P0152-02 - O2 Sensor 2/1 Circuit High. ● P0158-02 - O2 Sensor 2/2 Circuit High. ● P2504 - Charging System Output High. ● P0563 - Battery/System Voltage High. 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 in the Instrument Panel Cluster (IPC) due to clutch slip detection with the transfer case in neutral. NOTE: Some customers may experience wheel spin or traction loss. In these situations, the Powertrain Control Module (PCM) may interpret the event as excessive clutch slip. To prevent potential clutch damage, a message may be displayed in the Instrument Panel Cluster (IPC).** ● Clutch is overheating. ● Clutch is slipping on engagement. M18 FSAR-TSB-7161 -2- ● Inability to accelerate uphill. ● Vehicle does not start. ● Vehicle is stuck in limp-home mode","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031450-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031450-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031450"},{"nhtsa_id":11004882,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-17","date":"2024-07-09","document_id":"18-062-24","mfr_campaign":null,"component":"POWER TRAIN","summary":"\"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.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11004882-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11004882-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11004882"},{"nhtsa_id":11003967,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-09","date":"2024-07-03","document_id":"18-040-24 REV. A","mfr_campaign":null,"component":"POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set the following Diagnostic Trouble Code (DTC): P0300 - Multiple Cylinder Misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003967-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003967-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11003967"},{"nhtsa_id":11001127,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-06-06","date":"2024-05-02","document_id":"18-040-24","mfr_campaign":null,"component":"POWER TRAIN","summary":"\"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** ● P0300 - Multiple Cylinder Misfire. This bulletin involves reprogramming the PCM with the latest available software.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11001127-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11001127-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11001127"},{"nhtsa_id":10229793,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-17","date":"2022-12-03","document_id":"18-154-22 REV. B","mfr_campaign":null,"component":"EXTERIOR LIGHTING; ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: ? P0300 - Multiple Cylinder Misfire. This bulletin involves reprogramming the PCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229793-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229793-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229793"}],"url":"https://open.wenmarpro.com/makes/jeep/gladiator/2023/bulletins?code=P0300"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/jeep/gladiator/2023/codes/P0300","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}