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Service bulletins for the 2021 Jeep Wrangler

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.

1062 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
14-010-25 REV. C2025-07-02. Service bulletin. FUEL/PROPULSION SYSTEM. Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as diesel fuel filters. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris.
14-010-25 REV. B2025-06-10. Service bulletin. FUEL/PROPULSION SYSTEM. "Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris "
14-010-25 REV. A2025-06-02. Service bulletin. FUEL/PROPULSION SYSTEM. "Frequent Repairs Of Fuel Line Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debri "
1050382025-05-20. Service bulletin. FUEL/PROPULSION SYSTEM. TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE
1050392025-05-16. Service bulletin. FUEL/PROPULSION SYSTEM. TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE
S23080001522024-01-16. Service bulletin. FUEL SYSTEM, GASOLINE. Vehicle in an Accident, Fuel Shut Off, Vehicle Does not Start
S23180000102024-01-08. Service bulletin. FUEL SYSTEM, GASOLINE. Message in cluster for "Performance Limited Service Fuel System" with no DTC's
91001342024-01-02. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION. Engine When replacing a GMET4 long block from a 2021 JL or older, you will need to carry over the injector wiring harness from the original engine, and the Fuel pressure sensor should be replaced with part number: 68212572AB.
S23180000102023-10-30. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Message in cluster for "Performance Limited Service Fuel System" with no DTC's
14004232023-09-25. Service bulletin. FUEL SYSTEM, GASOLINE. Fuel Filler Cap Tether Too Long Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ?P04EC - EVAP System Large Leak Detected - Fuel Tank Side. ? P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side. Customers may also comment the following: ? There is a "Check Gas Cap" message in the Instrument Panel Cluster (IPC). NOTE: The above condition is caused from an air leak through the fuel filler cap and fuel filler neck seal, because the fuel filler cap tether is caught between both. This bulletin involves removing the fuel filler cap tether and replacing it with a shorter tether.
91001162023-02-13. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Valve - Coolant JL PHEV Hoses to 3-Way valve coolant hoses misroute causes P0E80-00. Check hose routing as outlined in Star Online Publication S2208000205 or on a known good vehicle before replacing valve. Routing hoses correctly will likely fix the issue.
S19250000082023-01-17. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
14002212023-01-17. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE. Incorrect Fuel Delivery Module This bulletin involves replacing the fuel pump module. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: P062A - Fuel Pump Control Performance. DTC is set due to the fuel tank was assembled with the incorrect fuel pump. The customer may also experience the following:A reduced level of performance or performance issues when requesting Wide Open Throttle (WOT).
S21140000022023-01-17. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT:ELECTRICAL. CEL (Check Engine Lamp) On Shortly After Filling Vehicle
1400522REVB2023-01-09. Service bulletin. FUEL SYSTEM, GASOLINE. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side.
14004222023-01-09. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE. Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side. Customers may also comment the following:There is a "Check Gas Cap" message in the Instrument Panel Cluster (IPC).The above condition is caused from an air leak through the fuel filler cap and fuel filler neck seal.
07001222023-01-09. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
Y812023-01-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, DIESEL. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
90045012023-01-09. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE. PUMP, Washer, Windshield Windshield washer pump is inop or low pressure If customer comes in with the issue described above, please contact the following individuals prior to servicing the vehicle. FCA Redacted Content If no response in 15 minutes, proceed with repair.
0700122REVB2022-12-19. Service bulletin. FUEL SYSTEM, GASOLINE. Water Pump Inlet Tube Fastener Torque
07001222022-12-19. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
S22140000032022-11-07. Service bulletin. FUEL SYSTEM, DIESEL. Guidelines For The Use Of Alternative Diesel Fuels.
S22080001542022-11-07. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; BACK OVER PREVENTION. Service Hybrid Electric Vehicle System Message Displayed In The IPC. Vehicle Shakes During A Cold Start And Noise Is Heard Near The P2 Motor. DTC?s U0287-00 And B273C-00
1400522REVB2022-10-31. Service bulletin. FUEL SYSTEM, GASOLINE. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side.
S2208000020RevA2022-10-31. Service bulletin. FUEL SYSTEM, GASOLINE. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)

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