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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

Bulletins, newest first
S21180000092022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S21080001192022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
S21080001212022-10-17. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM. Check Engine Light On And Service Hybrid System Displayed. P0A0A-00 High Voltage System Interlock Circuit ?A? Is Active
S20080000102022-10-17. Service bulletin. ELECTRICAL SYSTEM. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S21080001222022-10-17. Service bulletin. ELECTRICAL SYSTEM. PHEV Parameters Are Not Showing Up On Mobile App
S21080001202022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Volume Uncontrollable Or Changing On Its Own
S21080001182022-10-17. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR; VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. Power Mirrors Are Inoperative
S21080001162022-10-17. Service bulletin. ENGINE. Max Regeneration Does Not Remain On After Vehicle Is Restarted
S21180000072022-10-17. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS. MIL Lamp On DTC P1CEA BOOST SIDE EVAP PURGE SYSTEM PERFORMANCE
S21140000022022-10-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. CEL (Check Engine Lamp) On Shortly After Filling Vehicle
S21080000982022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Freeze, Blank Screen And Reset
S21240000062022-10-17. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR. Customer Indicates The AC Compressor Is Loud At Times.
S20230000112022-10-17. Service bulletin. VISIBILITY; STRUCTURE. Wind Noise And Or Gap At Front Door Mirror Flag
S21230000292022-10-17. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. Squeak and or Chirp Noise From Lift Gate Glass
S21080001022022-10-17. Service bulletin. BACK OVER PREVENTION. Reverse Camera System Unavailable Message, Blue Screen Showing On Radio Display
S21180000062022-10-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
90043762022-10-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90043752022-10-17. Service bulletin. BACK OVER PREVENTION. RADIO, MULTI Media (ASSY) The customers may have concerns of backup camera missing gridlines or showing black screen with "check entire surroundings" message while in Reverse mode. It is a backup camera initialization timing issue. Please check the backup camera and connections. This issue is recoverable with a key cycle. Replacing the radio head unit will not resolve the customer's concerns. FOTA service software release is scheduled for later June, 2021.
0803222REVA2022-10-17. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: C055F-00 - ABS Hydraulic Unit Performance.The software update will correct C055F-00 if it is a stored fault. If the fault is active, follow normal DTC diagnostics in Service Library.
14004222022-10-17. 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.
07001222022-10-17. 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.
18041222022-10-17. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at idle.
08054222022-10-17. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM); ELECTRICAL SYSTEM. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: P1C00-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range Low. P1C01-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range High. P1A9B-00 - Hybrid/EV Battery Temperature Sensor 1 Out Of Range High. P0BBD-00 - Hybrid Battery Pack Voltage Variation Exceeded Limit. P167B-00 - Controlled System Shutdown. U1885-00 - Battery Energy Control Module Lost Communication With HCP. P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. U0111 - Lost Communication With Hybrid Battery Pack Sensor Module. P0CA7-00 - Hybrid/EV Battery Discharging Current High. P1A0C-00 - Battery Energy Control Module System Voltage Low. This software enhancement will improve PHEV battery performance and diagnostics. Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM). Transmission Control Module (TCM). Powertrain Control Module (PCM). Integrated Dual Charging Module (IDCM).
18051222022-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. 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 Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT. Other software enhancement included with this update:On Board Fuel Consumption Monitoring Updates (China Only). Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM). Transmission Control Module (TCM). Battery Pack Control Module (BPCM). Integrated Dual Charging Module (IDCM).
08055222022-10-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Integrated Dual Charging Module (IDCM) Enhancements This bulletin involves reprogramming the IDCM with the latest software available or replacing the IDCM if required. Module, Integrated Dual Charging (IDCM)

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