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.

• 10183098Oct 27, 2020Body and structure. Aluminum Body Panel Corrosion Repair This bulletin involves inspecting and if necessary removing corrosion and refinishingthe suspect aluminum panels on the vehicle, hood, door, fenders, hinges, swing gates or liftgate panels.
• 10223983Oct 23, 2020Transmission and drivetrain, Steering. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, checking sales codes and performing vehicle reconfig, if required.Review and perform all step necessary to complete the Repair Procedure. If any steps are missed this may lead to undesired handling characteristics. The customer may describe one or more of the…
• 10183094Oct 23, 2020Steering, Equipment, Electrical system. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, checking sales codes and performing vehicle reconfig, if required.Review and perform all step necessary to complete the Repair Procedure. If any steps are missed this may lead to undesired handling characteristics. The customer may describe one or more of the…
• 10223930Oct 22, 2020Equipment. Satellite Radio Not Working
• 10183041Oct 22, 2020Equipment. Satellite Radio Not Working
• 10223889Oct 21, 2020Wheels. SENSOR, Wheel Speed Please call FCA Redacted Content prior to replacing a rear wheel speed sensor for one of the following fault codes: C003A-1D and or 2F (right rear wss circuit current out of range or signal erratic) C0037-1D and or 2F (left rear wss circuit current out of range or signal erratic) If no response in 15 minutes, proceed with repair.
• 10183000Oct 21, 2020Brakes, Wheels. SENSOR, Wheel Speed Please call FCA Redacted Content prior to replacing a rear wheel speed sensor for one of the following fault codes: C003A-1D and or 2F (right rear wss circuit current out of range or signal erratic) C0037-1D and or 2F (left rear wss circuit current out of range or signal erratic) If no response in 15 minutes, proceed with repair.
• 10223922Oct 16, 2020Electrical system. CEL (Check Engine Lamp) On, Intermittent Hard Starting, Rough Idle
• 10183033Oct 16, 2020Engine, Electrical system. CEL (Check Engine Lamp) On, Intermittent Hard Starting, Rough Idle
• 10223887Oct 14, 2020Electrical system, Equipment. TRANSMITTER, Integrated Key FOB For concern of keyfob inoperative, please contact FCA Redacted Content prior to replacing/servicing keyfob. If no response within 15 minutes, proceed with repair. Engineering is investigating to determine root cause as warranty return keyfobs are determined trouble not found.
• 10223884Oct 14, 2020Steering. GEAR, Power Steering When installing this gear refer to published service information. The power steering pump software must be updated, and vehicle configuration updated to ensure proper steering feel.
• 10182998Oct 14, 2020Electrical system, Equipment. TRANSMITTER, Integrated Key FOB For concern of keyfob inoperative, please contact FCA Redacted Content prior to replacing/servicing keyfob. If no response within 15 minutes, proceed with repair. Engineering is investigating to determine root cause as warranty return keyfobs are determined trouble not found.
• 10182995Oct 14, 2020Steering, Electrical system. GEAR, Power Steering When installing this gear refer to published service information. The power steering pump software must be updated, and vehicle configuration updated to ensure proper steering feel.
• 10223917Oct 10, 2020Brakes. ABS, ESC Lamp On, Red Brake Lamp Flashing
• 10183028Oct 10, 2020Exterior lighting, Brakes. ABS, ESC Lamp On, Red Brake Lamp Flashing
• 10181582Sep 30, 2020Visibility (wipers, defrost, mirrors). (Revision A) Water Leak From Front Or Rear Of Sky Slider Open Top
• 10181583Sep 29, 2020Engine cooling. (Revision A) Engine Restarting On Stop/Start Event Without Releasing The Brake Pedal, EVIC Displays Shift To P Then Desired Gear, D on PRNDL Flashing
• 10181634Sep 26, 2020Steering. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, if required. The customer may describe one or more of the following:Steering wander. Vehicle has a lead/pull to the right or left.The lead/pull will be more noticeable in hot ambient temperatures. Steering feels like it has excess play.This Technical Service Bulletin (TSB)…
• 10181578Sep 25, 2020Tires. (Revision A) Oversized Tire Calibration For Customized Jeep Wrangler, Gladiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
• 10181616Sep 16, 2020Steering. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, if required. The customer may describe one or more of the following:Steering wander. Vehicle has a lead/pull to the right or left.The lead/pull will be more noticeable in hot ambient temperatures. Steering feels like it has excess play.This Technical Service Bulletin (TSB)…
• 10181585Sep 16, 2020Steering. D-20-12 Service Bulletin 08-074-20 - Jeep Wrangler (JL) and Jeep Gladiator (JT) - Improved Steering Feel
• 10181558Sep 15, 2020Equipment. Navigation Shows Incorrect Location
• 10181544Sep 11, 2020Equipment. Radio Inoperative Or Will Not Turn On
• 10181548Sep 9, 2020Electrical system. (Revision A) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10181599Sep 5, 2020Equipment. UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 34.2. Customers may experience one or more of the following:Radio screen goes black. Voice Recognition (VR) call contact name not recognized. In addition, the following software enhancements are also available:Bluetooth improvements. Navigation improvements.
• 10181545Sep 5, 2020Equipment. (Revision B) Radio Resets While Driving Under 1000 RPM
• 10181597Sep 4, 2020Equipment. UGQ Radio Enhancements This bulletin involves inspecting and if required updating the radio software to:28.3 - 2018 34.21 - 2019 and 2020 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. Radiodisplay black, except application…
• 10181540Sep 2, 2020Electrical system. Malfunction Indicator Lamp (MIL) Illuminated, Diagnostic Trouble Code (DTC) P2C90 - Crankcase Ventilation System - Hose "A" Disconnected or P04FC -Crankcase Ventilation Performance
• 10181537Sep 1, 2020Electrical system, Air bags. Passenger Air Bag Disable Lamp On Flashing When PADL Switch Is Connected
• 10221896Aug 28, 2020Electrical system, Transmission and drivetrain. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. 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) illumination or Diagnostic Trouble Codes (DTCs) set.
• 10221893Aug 28, 2020Forward collision avoidance, Lane departure, Back-over prevention (rear…. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10221843Aug 28, 2020Equipment. Radio UConnect GPS Based Trip Computer Missing
• 10180286Aug 28, 2020Electrical system, Transmission and drivetrain, Engine. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. 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) illumination or Diagnostic Trouble Codes (DTCs) set.
• 10180283Aug 28, 2020Electrical system, Equipment, Forward collision avoidance. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10180233Aug 28, 2020Equipment, Electrical system. Radio UConnect GPS Based Trip Computer Missing
• 10221790Aug 26, 2020Transmission and drivetrain, Other or unknown. TRANSFER CASE ASSY For concern of transfer case input seal leak at main lip seal. Call FCA Redacted Content to confirm if T-case should be sent back to QEC.
• 10180180Aug 26, 2020Equipment, Transmission and drivetrain. TRANSFER CASE ASSY For concern of transfer case input seal leak at main lip seal. Call FCA Redacted Content to confirm if T-case should be sent back to QEC.
• 10221883Aug 25, 2020Forward collision avoidance, Electrical system, Lane departure, Back-over…. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10180273Aug 25, 2020Forward collision avoidance, Equipment, Electrical system. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10221880Aug 21, 2020Electrical system, Back-over prevention (rear camera), Lane departure, Forward…. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10180270Aug 21, 2020Forward collision avoidance, Equipment, Electrical system. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10221879Aug 20, 2020Electrical system, Lane departure, Back-over prevention (rear camera), Forward…. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following: Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10180269Aug 20, 2020Forward collision avoidance, Brakes, Electrical system. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following: Instrument Panel Cluster (IPC) warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes. The following software enhancements are also available:Allows customers to turn off the FCW indefinitely, rather…
• 10221828Aug 19, 2020Exterior lighting, Other or unknown. Right Front Parking Lamp LED Halo Does Not Illuminate
• 10221787Aug 19, 2020Equipment. USB PORT, Media Hub For Android Auto and Apple Carplay issues, do not replace this part. Android Auto and Apple Carplay applications may not operate with the vehicle if an aftermarket cable is being used. Verify the functionality of these applications using an OEM Apple Lightning cable or an OEM provided USB cable for Android phones before performing any additional troubleshooting. For questions regarding Android…
• 10180218Aug 19, 2020Brakes, Electrical system, Equipment. Right Front Parking Lamp LED Halo Does Not Illuminate
• 10180177Aug 19, 2020Equipment. USB PORT, Media Hub For Android Auto and Apple Carplay issues, do not replace this part. Android Auto and Apple Carplay applications may not operate with the vehicle if an aftermarket cable is being used. Verify the functionality of these applications using an OEM Apple Lightning cable or an OEM provided USB cable for Android phones before performing any additional troubleshooting. For questions regarding Android…
• 10221827Aug 17, 2020Exterior lighting, Transmission and drivetrain, Electrical system. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.
• 10180217Aug 17, 2020Electrical system, Engine cooling. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.
• 10221819Aug 12, 2020Brakes, Engine cooling, Fuel system, Exterior lighting. (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.

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