2020 Jeep Wrangler Technical Service Bulletins

1,020 technical service bulletins (TSBs) are on record for the 2020 Jeep Wrangler. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10218521Aug 25, 2021Equipment. Radio Lockup In The Software Installation Screen After Accepting FOTA Update (Incorrect "S2008000204" indicated on published document)
• 10219976Aug 24, 2021Engine. 3.0L Ecodiesel Engine Oil Information
• 10218515Aug 24, 2021Engine cooling. 3.0L Ecodiesel Engine Oil Information
• 10219975Aug 21, 2021Fuel system. Customer complaint includes a Mil-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM: P0456 - EVAP System Small Leak P0455 - EVAP System Large Leak P04EC - EVAP System Large Leak - Fuel Tank Side (PHEV only) P04EE - EVAP System Very Small Leak - Fuel Tank Side (PHEV only) P0441 - EVAP Purge Flow Performance P1CEA - Boost Side EVAP Purge System Performance
• 10218514Aug 21, 2021Fuel system. Customer complaint includes a Mil-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM: P0456 - EVAP System Small Leak P0455 - EVAP System Large Leak P04EC - EVAP System Large Leak - Fuel Tank Side (PHEV only) P04EE - EVAP System Very Small Leak - Fuel Tank Side (PHEV only) P0441 - EVAP Purge Flow Performance P1CEA - Boost Side EVAP Purge System Performance
• 10218584Aug 20, 2021Engine cooling. Pentastar Upgrade Oil Fill Level after an Oil Change This bulletin involves rechecking the oil fill level after filling the engine to the correct specifications. The customer may describe that after an oil change they check their oil fill level and it is showing overfilled on the oil dipstick.
• 10218507Aug 18, 2021Equipment. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
• 10219953Aug 12, 2021Back-over prevention (rear camera). Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above…
• 10218493Aug 12, 2021Engine cooling. Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above…
• 10218559Aug 6, 2021Equipment, Electrical system. UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to: 39.6.The repair procedure must be followed step by step. If the radio is not updated with the correct software level at the correct time the radio can be damaged. If the radio was damaged by not following the repairprocedure the radio may need to be replaced. Customers may experience one or more…
• 10219934Aug 4, 2021Air bags, Lane departure. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
• 10218474Aug 4, 2021Air bags. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
• 10218548Aug 3, 2021Other or unknown, Body and structure. Rear Glass Prop Rod Failure This bulletin involves inspecting the rear backlite prop rod Julian dates and possibly replacing both prop rods. Customer may comment on the following:Rear glass fails to stay in the open position (prop rods will not support glass).
• 10219933Aug 2, 2021Visibility (wipers, defrost, mirrors). Customer indicates that the ESS functionality is not operational while using different functions of the HVAC system.
• 10218473Aug 2, 2021Visibility (wipers, defrost, mirrors). Customer indicates that the ESS functionality is not operational while using different functions of the HVAC system.
• 10230217Jul 27, 2021Electrical system. Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.
• 10221631Jul 27, 2021Electrical system. Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.
• 10230205Jul 21, 2021Vehicle speed control, Electrical system. Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s
• 10221619Jul 21, 2021Electrical system, Vehicle speed control. Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s
• 10230204Jul 19, 2021Exterior lighting, Brakes, Fuel system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
• 10221618Jul 19, 2021Brakes, Fuel system, Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
• 10230258Jul 16, 2021Electrical system, Transmission and drivetrain. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience one or both of the following conditions: A Malfunction Indicator Lamp (MIL) event or failure with no Diagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an…
• 10230194Jul 16, 2021Brakes. Head unit button stuck DTC code B14DA-2A
• 10221672Jul 16, 2021Transmission and drivetrain, Electrical system, Exterior lighting. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience one or both of the following conditions: A Malfunction Indicator Lamp (MIL) event or failure with no Diagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an…
• 10221608Jul 16, 2021Brakes. Head unit button stuck DTC code B14DA-2A
• 10230190Jul 15, 2021Electrical system. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
• 10221604Jul 15, 2021Electrical system. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
• 10230183Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10221597Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10230180Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10221594Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10230245Jul 1, 2021Steering. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following: A noise coming from the tailshaft of the steering column while turning.
• 10221659Jul 1, 2021Steering. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following: A noise coming from the tailshaft of the steering column while turning.
• 10221313Jun 30, 2021Visibility (wipers, defrost, mirrors). Whistle Wind Noise From Windshield Area.
• 10221299Jun 24, 2021Electrical system, Visibility (wipers, defrost, mirrors). Stop Start Inoperative, Cluster Message To Service Stop Start, AC Inoperative
• 10212461Jun 24, 2021Electrical system. Stop Start Inoperative, Cluster Message To Service Stop Start, AC Inoperative
• 10221287Jun 19, 2021Engine cooling. Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above…
• 10212474Jun 19, 2021Back-over prevention (rear camera). Customer?s complaint may include a MIL-on with one or more of the following DTCs Active, Pending, or Stored in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 Bank 1 downstream O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above…
• 10221293Jun 18, 2021Engine cooling. Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
• 10221291Jun 18, 2021Equipment. RHD Glove box cannot be fully opened
• 10221288Jun 18, 2021Transmission and drivetrain. Customer complaint includes a Mil-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM:
• 10212449Jun 18, 2021Equipment. RHD Glove box cannot be fully opened
• 10212447Jun 18, 2021Transmission and drivetrain. Customer complaint includes a Mil-on condition. Upon further investigation, one or more of the following fault codes may be set in the PCM:
• 10221333Jun 17, 2021Steering. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following:A noise coming from the tailshaft of the steering column while turning.
• 10212507Jun 17, 2021Steering, Equipment. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following:A noise coming from the tailshaft of the steering column while turning.
• 10221281Jun 16, 2021Engine cooling. Check Engine Lamp Comes On, CAN C Loss Communication DTC?s Setting Stored Or Active Intermittently
• 10221277Jun 16, 2021Engine cooling. Customer Complaint May Include Engine Oil Leak Or Consumption
• 10212473Jun 16, 2021Engine cooling. Customer Complaint May Include Engine Oil Leak Or Consumption
• 10212468Jun 16, 2021Other or unknown, Engine. Check Engine Lamp Comes On, CAN C Loss Communication DTC?s Setting Stored Or Active Intermittently
• 10221278Jun 15, 2021Body and structure. Wind Whistle Noise From A Pillar Area At Highway Speed

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