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Service bulletins for the 2020 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.

1020 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
S21230000202022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. A Buzz, Squeak, Rattle (BSR), Clicking Noise Heard From Left Side Of The Freedom Top.
9004307A2022-09-26. Service bulletin. EQUIPMENT; ENGINE. TRANSMITTER, Integrated Key FOB Due to a global semiconductor shortage, service availability of this part is limited. To maintain production and service requirements, FOBIKs affected by the shortage will be available on an ?as required basis?. This FOBIK should only be ordered in the event the vehicle is inoperable, and there are no other FOBIKs available. It is requested the customer uses their spare FOBIK until supply is once again available.
90041042022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Valve Cover & Gasket Engineering is looking for information on the Pentastar valve cover due to gasket oil leaks. Please review the valve cover for a white paint dot/mark directly between the 2 cam actuators on the front of the valve cover. If found, please contact the following engineers for further information FCA Redacted Content, or FCA Redacted Content If no response in 15 minutes, proceed with repair.
90043072022-09-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. TRANSMITTER, Integrated Key FOB Due to a global semiconductor shortage, service availability of this part is limited. To maintain production and service requirements, FOBIKs affected by the shortage will be available on an ?as required basis?. This FOBIK should only be ordered in the event the vehicle is inoperable, and there are no other FOBIKs available. It is requested the customer uses their spare FOBIK until supply is once again available. On some 2021 vehicles, they will be sold with only one FOBIK, and will have sales code ?GXZ?. For these vehicles a CSN (Customer Satisfaction Notification) will be released to replace the FOBIK once supply is available. A unique part number will be used for this campaign. For these vehicles, only order a replacement FOBIK in a vehicle down situation. Due to the global shortage, once service inventory of this part is depleted, there may not be any additional parts available for service for an extended period of time. This may cause customer dissatisfaction and extended vehicle down time. We appreciate everyone?s consideration and cooperation to only order this part in a vehicle down situation.
90040092022-09-26. Service bulletin. POWER TRAIN. Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins are present in the engine block, which align the transmission center line to the crank shaft centerline and visually inspect the dowel alignment holes in the transmission case. If the holes are damaged or elongated the transmission should be replaced to prevent further damage to the transmission/flexplate or pump bushing due to the inability to properly align the engine to the transmission during the repair. 3. All 62TE equipped vehicles. If pump bushing is scored or damaged and the dowel pin alignment holes are ok, replace the pump assembly as opposed to complete transmission. 4. All 62TE equipped vehicles. If vehicle is jerking/slipping with MIL code(s) P0740 or P2764, check TCC Solenoid operation. If TCC Solenoid is ok, the codes are indicative of a torque converter failure. Replace the torque converter.
08045212022-09-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UGQ Radio Enhancements This bulletin involves inspecting and if required updating the radio software to:28.3 - 2018 MY 34.21 - 2020 MY Customers may experience one or more of the following: Intermittently, the radio screen will black out after key is turned on(For 34.21 Only). Navigation screen freezes after a Voice Recognition (VR) command. Warning chime will not turn off. Radio display black, except application bar. Language setting reverting from customer set language to Italian language. Message displayed ?TomTom live services unavailable?. Frequent pop-ups during startup saying device not connected - Uconnect LIVE. Uconnect Live feature may not function properly. Radio may reset, turn off and then back on. Audio distortion heard during phone calls and CarPlay. In addition the following enhancements are included:Bluetooth improvements. VR improvements. Russian language enhancements.
S21080000802022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Replacement Reset Routine, Radio Has Missing Icons Or Are Grayed Out
S21080000742022-09-26. Service bulletin. ELECTRICAL SYSTEM. Wiring Harness Contacts Drivers Catalytic Converter. Check Engine Light (CEL), Anti-Lock Brake System (ABS), Traction Control System (TCS), Service 4WD Lamp On
S1924000008RevA2022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Front Defrost Only Clears Part Of The Windshield
S1908000092ReVA2022-09-26. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Reverse Camera System Unavailable And Blue Screen Showing On Radio Display
S2108000057RevA2022-09-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The EVIC Splash Screen Does Not Display The Rubicon Logo On Vehicles Equipped With The Rubicon Recon 28Y Package
S21240000042022-09-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C does not cool and vehicle is low on Freon charge but no leak is found with sniffer or black light anywhere in the system
S2003000001ReVD2022-09-26. Service bulletin. POWER TRAIN. Noise From Front Axle Area Over Bumps
S1821000005RevA2022-09-26. Service bulletin. EQUIPMENT; TIRES. Required Updates When Changing Tire Sizes, Installing Mopar Lift Kits With Larger Tires, Manual Transmission Vehicles Setting DTC P08A6
S21230000152022-09-26. Service bulletin. BACK OVER PREVENTION; VEHICLE SPEED CONTROL. Creak Tick Pop Noise From Door Or Doors
S21080000642022-09-26. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Appearance Of A Coolant Leak On The Power Pack Unit (PPU) Fitting Due To Assembly Lubricant
90040172022-09-26. Service bulletin. BACK OVER PREVENTION; VISIBILITY:REARVIEW MIRRORS/DEVICES. CAMERA, Rear View For concerns of back up camera flicker/blank/blue/black screen or camera inop, please ensure Radio is at latest software level. After update, system requires three sleep cycles to function properly. Please verify camera LVDS- Low-Voltage Differential Signaling cable connection at camera and radio head unit. Also verify harness connection between high mounted stop lamp and body harness for bent pins or loose connection at XY310A, XY485A inlines. Please create and send a copy of the vehicle scan report and specify radio SW version and radio head unit ID toFCA Redacted Content or call FCA Redacted Content for any additional questions or assistance needed. If no response in 15 minutes, proceed with repair. Please be sure to attach a copy of the Vehicle Scan Report on the repair order.
90043552022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE, Complete If you are replacing the 3.0L Diesel engine assembly due to internal failure, the Diesel Engineering team is requesting more information regarding the repair. Please provide the following information to FCA Redacted Content and proceed with engine order. -Vehicle VIN -Vehicle Mileage -Symptoms and reason for engine replacement -STAR case # (if applicable) Someone from the Diesel Engineering team may respond back with further questions, requests for pictures, or provide a Fast track number if the symptomatic engine needs further analysis.
07001222022-09-26. 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.
18053222022-09-26. 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 one or more of the following (DTCs) have been set: P2172 - High Airflow/Vacuum Leak Detected (Instantaneous Accumulation). P0441 - EVAP Purge System Performance. P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected
18049222022-09-26. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION; ELECTRICAL SYSTEM. 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): P0441- EVAP Purge System Performance. The customer may comment on one or more of the following: Abnormal Engine noise heard periodically. This noise is caused by Variable Valve Timing (VVT) cleaning cycle. A misfire condition with no Malfunction Indicator Lamp (MIL) illuminationor Diagnostic Trouble Codes (DTCs) set. In addition, the following software enhancements are available: Updates to include misfire DTCs.
Y812022-09-26. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
S19080001592022-09-26. Service bulletin. BACK OVER PREVENTION. MIL Lamp On, DTC P0330 Knock Sensor 2 Circuit
S21180000152022-09-26. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
S22230000292022-09-26. Service bulletin. BACK OVER PREVENTION. Rattle Noise From Door

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