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.

• 10212450Jun 15, 2021Back-over prevention (rear camera). Wind Whistle Noise From A Pillar Area At Highway Speed
• 10221273Jun 14, 2021Equipment. UGDO Homelink Universal Garage Door Opener
• 10221270Jun 11, 2021Suspension. Click Noise From Front End While Driving And Or Turning
• 10221269Jun 11, 2021Equipment. Error Code 20 Message On the Radio Screen
• 10221265Jun 11, 2021Exterior lighting. Right Side Head Lamp, DRL Lamp Or Turn Signal Inoperative
• 10221228Jun 9, 2021Electrical system. WIRING, Body Before replacing this harness, please contact FCA Redacted Content to see if a repair kit is available for your application. If no response in 15 minutes, proceed with repair. Please email pictures of harness defects to FCA Redacted Content
• 10221259Jun 8, 2021Equipment. Error Code 20 Message On the Radio Screen
• 10221258Jun 8, 2021Equipment. Radio Screen Freeze, Blank Screen And Reset
• 10221323Jun 4, 2021Seats. Front Passenger Outer Seat Bolster Foam is Collapsed This bulletin includes repositioning the passenger outer seat bolster and installing a strap and push pin to help prevent this concern from happening again. Customers may comment on the following: The front passenger outer seat bolster cushion is missing
• 10221252Jun 4, 2021Visibility (wipers, defrost, mirrors). Intermittent Audio With Sky Roof Partially Open
• 10212510Jun 4, 2021Equipment, Seats. Front Passenger Outer Seat Bolster Foam is Collapsed This bulletin includes repositioning the passenger outer seat bolster and installing a strap and push pin to help prevent this concern from happening again. Customers may comment on the following: The front passenger outer seat bolster cushion is missing
• 10221246Jun 3, 2021Visibility (wipers, defrost, mirrors). One Touch Sky One Power Roof Reversing When Closing
• 10230078May 28, 2021Equipment. Radio Reboot Continually
• 10230077May 28, 2021Equipment. Bubbles Or Delamination On The Radio Display
• 10223466May 28, 2021Other or unknown. Radio Reboot Continually
• 10223465May 28, 2021Other or unknown. Bubbles Or Delamination On The Radio Display
• 10223306May 28, 2021Equipment. Radio Reboot Continually
• 10223305May 28, 2021Equipment. Bubbles Or Delamination On The Radio Display
• 10198400May 28, 2021Equipment. Radio Reboot Continually
• 10198399May 28, 2021Equipment. Bubbles Or Delamination On The Radio Display
• 10230056May 27, 2021Equipment. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
• 10223444May 27, 2021Electrical system. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
• 10223284May 27, 2021Equipment. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
• 10198378May 27, 2021Equipment. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
• 10229997May 26, 2021Electrical system. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
• 10223385May 26, 2021Engine cooling. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
• 10223225May 26, 2021Fuel system. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
• 10198299May 26, 2021Equipment. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
• 10230141May 25, 2021Equipment. UKA and UKG Radio Enhancements This bulletin involves updating the radio software level to 1848.35. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day (2019 JL with UKA). Radio resets with RPM less than 1000 RPM (2020 JL with UKG and 3.0L Diesel - EXJ).
• 10230066May 25, 2021Equipment. Radio Reboot Continually
• 10223454May 25, 2021Equipment. Radio Reboot Continually
• 10223369May 25, 2021Equipment. UKA and UKG Radio Enhancements This bulletin involves updating the radio software level to 1848.35. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day (2019 JL with UKA). Radio resets with RPM less than 1000 RPM (2020 JL with UKG and 3.0L Diesel - EXJ).
• 10223294May 25, 2021Equipment. Radio Reboot Continually
• 10198463May 25, 2021Equipment. UKA and UKG Radio Enhancements This bulletin involves updating the radio software level to 1848.35. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day (2019 JL with UKA). Radio resets with RPM less than 1000 RPM (2020 JL with UKG and 3.0L Diesel - EXJ).
• 10198388May 25, 2021Equipment. Radio Reboot Continually
• 10230058May 24, 2021Engine 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.
• 10223446May 24, 2021Engine 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.
• 10223286May 24, 2021Engine 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.
• 10198380May 24, 2021Engine 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.
• 10230054May 22, 2021Equipment. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
• 10223442May 22, 2021Equipment. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
• 10223282May 22, 2021Electrical system. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
• 10198376May 22, 2021Electrical system. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
• 10230129May 21, 2021Electrical system, Back-over prevention (rear camera). Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system.
• 10223497May 21, 2021Electrical system. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system.
• 10223357May 21, 2021Visibility (wipers, defrost, mirrors), Electrical system. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system.
• 10198451May 21, 2021Visibility (wipers, defrost, mirrors), Electrical system. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system.
• 10230128May 20, 2021Back-over prevention (rear camera), Exterior lighting, Fuel system, Electrical…. 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, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant…
• 10223496May 20, 2021Brakes, Electrical system, Fuel system, Exterior lighting, Back-over…. 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, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant…
• 10223356May 20, 2021Transmission and drivetrain, 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, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant…

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