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Service bulletin 9100838

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11033958
Published by NHTSA2026-06-18
Manufacturer's number9100838
Manufacturer's date2026-06-09
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

Before replacing any parts check for applicable TSBs/RSUs. If no applicable TSBs/RSUs, or they have already been applied, please refer to the updated Service Library diagnostic procedure for P1CEA-00-BOOST SIDE EVAP PURGE SYSTEM PERFORMANCE (MODULE, Powertrain Control (PCM), 3.0L GMET6) and SOL S2518000008.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P1CEA

Vehicles listed
JEEP GRAND WAGONEER2022, 2023, 2024, 2025, 2026
JEEP WAGONEER2022, 2023, 2024, 2025
JEEP WAGONEER2026
RAM 15002025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
9100833 REV12026-07-18. Service bulletin. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
90 Combo Rev22026-07-02. Service campaign. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Purge Valve Hose SYMPTOM DESCRIPTION The purge valve hose on about 15,000 of the above vehicles may become disconnected from the intake manifold or the purge solenoid. This condition can cause an engine misfire, rough running and hard starting. In addition, the Malfunction Indicator Lamp (MIL) may illuminate on the instrument panel cluster.
91008332026-07-02. Service bulletin. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
S2508000109 REV.A2026-04-22. Service bulletin. Instrument Cluster Fuel and Coolant Temperature Gauge Do Not Reset To The Home Position And Show Incorrect Values
S25080001092026-04-15. Service bulletin. Instrument Cluster Fuel and Coolant Temperature Gauge Do Not Reset To The Home Position And Show Incorrect Values
91007772026-03-13. Service bulletin. Before replacing any parts check for applicable TSBs/RSUs. If no applicable TSBs/RSUs, or they have already been applied, please refer to SOL S2518000008.
S2318000005 REV.C2025-12-11. Service bulletin. The customer’s complaint may include a message appearing in the cluster’s information center stating, “See User’s Manual For Proper Oil And Fuel” or “Service Engine See Dealer”. The customer may also mention a “low power” complaint.
S25140000032025-06-11. Service bulletin. MIL-On/Check Engine Lamp (CEL)-On
18-081-242024-11-07. Service bulletin. "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): lP018B-00 - Fuel Pressure Sensor ""B"" Circuit Range/performance. lP1CEA-00 - Boost Side Evap Purge System Performance. lP06DD-00 - Engine Oil Pressure Control Circuit Performance/stuck Off. The following software update is also available: lEngine speed display improvement for tachometer on the Instrument Panel Cluster (IPC) - smoother tachometer display (previous was too active). lPrevent false fails with MIL on."
18004242024-03-18. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ? P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. ? P0461-00 - Fuel Level Sensor "A" Circuit Range/Performance. ? P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance. ? P2F64-00 - Ion Sense Feedback Circuit A. ? P0331-00 - Knock Sensor 2 Circuit Range/Performance. ? P0300-00 - Multiple Cylinder Misfire.** ? P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. ? P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or System Performance. ? P0604-00 - Internal Control Module Random Access Memory Ram Error. ? P060C-00 - Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.