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Service bulletins for the 2023 Jeep Gladiator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

378 on file from NHTSA, as of 2026-10-19.

About P152F on the 2023 Jeep Gladiator: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P152F are shown. Show all

Bulletins, newest first
18-045-262026-04-22. Service bulletin. POWER TRAIN; ENGINE. 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
18-087-252025-10-08. Service bulletin. POWER TRAIN. 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): ● P08A6 - Gear Lever Position Sensor System - Multiple Sensor Correlation. ● P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. Customers may also comment on one or more of the following: ● Service Transmission message on in the Instrument Panel Cluster (IPC) due to clutch slip detection with the transfer case in neutral. ● Driver might experience some wheels are slipping This bulletin involves reprogramming the PCM with the latest available software.
91005992025-05-29. Service bulletin. ELECTRICAL SYSTEM. Underhood start/stop safety The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC): - P152E Engine -Hood Switch 2 Circuit High. - DTC P152F Customers may also experience: - Start/Stop system warning light. - Start/Stop inoperable. - Remote start inoperable. Diagnosis: - Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/Service Library, verify all related systems are functioning as designed. If DTCs or symptom conditions, other than the one listed are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin. - If any vehicle exhibits any of the symptoms listed above in the customer symptom section, perform the Repair Procedure. - Special Tools/Equipment: wiTECH or equivalent. Repair Procedure: 1. Open the hood and locate the hood switch 2. Push in on the two locking tabs and pull them out. 3. Disconnect the wire connector from the switch. 4. Connect the wires to the same hood switch. 5. Push the switch back into the hold until both lock tab are engaged. 6. Clear all DTCs that may have been set in any module during this repair procedure. 7. In case the P152F/P152E DTCs persist, repeat the procedure with a new/spare/known good switch and repeat steps 5 and 6. 8. Replace switch installed during previous step for the original switch of the vehicle. If DTCs P152F/P152E are not present, leave the original switch installed and do not document the change of the switch in the repair process/narrative.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.