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.

• 10174179Mar 18, 2020Fuel system. Fast Feedback Program - 3.0L Diesel Engine and Components - 2020 Ram 1500 (DT) and 2020 Jeep Wrangler (JL) - All Models (Rev. B)
• 10175486Mar 16, 2020Visibility (wipers, defrost, mirrors). Whistle Wind Noise From Windshield Area.
• 10175074Mar 16, 2020Visibility (wipers, defrost, mirrors). Whistle Wind Noise From Windshield Area.
• 10174154Mar 16, 2020Back-over prevention (rear camera), Visibility (wipers, defrost, mirrors). Whistle Wind Noise From Windshield Area.
• 10175479Mar 11, 2020Electrical system. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10175067Mar 11, 2020Electrical system. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10174147Mar 11, 2020Exterior lighting, Back-over prevention (rear camera). Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10175478Mar 10, 2020Transmission and drivetrain, Electrical system. Customer complaint includes check engine/MIL light on. Upon further inspection, fault codes will be found in the powertrain control module (PCM) for P0441, P0443 or P0449. Fault codes may be either active or stored.
• 10175066Mar 10, 2020Electrical system. Customer complaint includes check engine/MIL light on. Upon further inspection, fault codes will be found in the powertrain control module (PCM) for P0441, P0443 or P0449. Fault codes may be either active or stored.
• 10174146Mar 10, 2020Air bags, Electrical system. Customer complaint includes check engine/MIL light on. Upon further inspection, fault codes will be found in the powertrain control module (PCM) for P0441, P0443 or P0449. Fault codes may be either active or stored.
• 10175477Mar 9, 2020Suspension. Noise From Front Axle Area Over Bumps
• 10175065Mar 9, 2020Suspension. Noise From Front Axle Area Over Bumps
• 10174145Mar 9, 2020Body and structure. Noise From Front Axle Area Over Bumps
• 10175551Mar 7, 2020Electrical system, Transmission and drivetrain, Back-over prevention (rear…. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a loud whistle noise upon engine start up.
• 10175138Mar 7, 2020Electrical system, Transmission and drivetrain. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a loud whistle noise upon engine start up.
• 10174218Mar 7, 2020Electrical system, Transmission and drivetrain. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a loud whistle noise upon engine start up.
• 10175473Mar 6, 2020Exterior lighting. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
• 10175061Mar 6, 2020Fuel system. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
• 10174141Mar 6, 2020Exterior lighting. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
• 10175510Mar 4, 2020Equipment. DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers (Rev. A)
• 10173328Feb 26, 2020Electrical system, Equipment. Key Programming, Security Pin Request, Pin Invalid
• 10173284Feb 26, 2020Engine cooling, Electrical system. BATTERY, Auxiliary (180 AMP) Mopar Engineering has reviewed the BBAUA180AA battery due to concerns over fitment in Chrysler, Jeep®, Dodge & Ram vehicles and has provided direction on usage. BBAUA180AA CAN BE USED in the following vehicles equipped with stop/start technology: ?MP ? Jeep Compass ?JL ? Jeep Wrangler ?JT ? Jeep Gladiator ?RU ? Chrysler Pacifica RU NOTE: Modify the BBAUA180AA battery positive mold cover…
• 10173283Feb 26, 2020Seats, Vehicle speed control. FRAME, Front Seat Cushion For all 2 door JL vehicles, if the front driver or passenger seat is stuck in the folded (EZ entry) position or it won't return to normal seating position, review SB 23-020-19 prior to replacing the seat frame.
• 10173329Feb 25, 2020Suspension. Noise From Front Axle Area Over Bumps
• 10173322Feb 24, 2020Body and structure, Equipment. Wind Whistle Noise From Glove Box Area Above 35 MPH
• 10173320Feb 24, 2020Electrical system. ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
• 10173326Feb 23, 2020Lane departure, Electrical system, Back-over prevention (rear camera). Rear Park Assist Warning Chime, Rear Park Sense Unavailable Wipe Sensor Message While Backing Up No Object Present
• 10173323Feb 22, 2020Electrical system. Intelligent Battery Sensor-IBS Installation, Battery Charging Message, Start Stop Charging Warning Lamp Illuminated On Stop Start Equipped Vehicles
• 10173319Feb 19, 2020Body and structure. Wind Noise And Or Gap At Front Door Mirror Flag
• 10173373Feb 18, 2020Transmission 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 the technician may find one of the following Diagnostic Trouble Codes (DTCs) have been set:P0506 - Idle Speed Performance Lower Than Expected
• 10173371Feb 18, 2020Transmission 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 the technician may find one of the following Diagnostic Trouble Codes (DTCs) have been set:P0506 - Idle Speed Performance Lower Than Expected
• 10173370Feb 18, 2020Seats. Rubicon Front Seat Back Panel Loose This bulletin includes inspecting, reattaching and if needed replacing the front seat back panel(s). Customers may comment on the following:Front seat back panel is loose. Front seat back panel fell off. Gap between the seat back and seat assembly,Fig. 1. Gap Between Seat Back and Panel
• 10173333Feb 12, 2020Equipment. DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers
• 10173308Feb 8, 2020Equipment. Audio Mute On All Sources Except AM
• 10173305Feb 6, 2020Equipment. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup Or Freeze.
• 10173269Feb 5, 2020Vehicle speed control, Brakes. HANDLE AND CABLE, Seat Release If you have a 2 door vehicle built after 8/6/2019 with an EZ entry handle that is loose or appears broken, please call FCA Redacted Content prior to replacing any parts. If no response in 15 minutes, proceed with repair. EZ entry handle mounting bracket may have grease present which may have damaged the plastic of the EZ entry handle.
• 10173266Feb 5, 2020Electrical system. BUTTON, Glass, Backlight ? EBL Hard top back flipper glass defroster grid is inoperative due to connector tab for electric backlight defrost grid broken off. For back flipper glass defroster terminal soldered joint failure, please send an email with the following to FCA Redacted Content: VIN Number Mileage A close up picture of both the back of the failed soldered terminal and the glass side of the failed solder…
• 10173343Feb 4, 2020Electrical system, Seats. Body Control Module (BCM) Reconfigure for Enabling the Auto-On Comfort Settings This bulletin involves reconfiguring the BCM and possibly a radio reset, to enable the auto-on comfort settings. Customers may comment on one or more of the following:If below 4 °C (40 °F), the heated seats or heated steering wheel turn on by themselves. If above 26 °C (80 °F), the vented seats turn on by themselves. Cannot turn off the…
• 10222939Jan 1, 2020Electrical system. EV Mode Unavailable, Cluster Message Displayed Vehicle In Fuel And Oil Refresh Mode
• 10170389Dec 14, 2019Equipment. Radio Enhancements This bulletin involves updating the radio software level to 1848.24. Customers may experience one or more of the following: Ghost Touch, features, modes and App?s changing without drivers input. Bluetooth pop noise. Pop message ?SXM Wait? displayed for extended period of time. The radio resets.
• 10170364Dec 11, 2019Engine cooling. Fast Feedback Program - 3.0L Diesel Engine and Components - 2020 Ram 1500 (DT) and 2020 Jeep Wrangler (JL) - All Models (Rev. A)
• 10170311Dec 11, 2019Seats. FRAME, Front Seat Cushion For all 2 door JL vehicles, if the front driver or passenger seat is stuck in the folded (EZ entry) position or it won't return to normal seating position, please call Ajay Sharma (646) 236-2413 prior to any repairs or teardown. If no response in 15 minutes, proceed with repair.
• 10170309Dec 11, 2019Visibility (wipers, defrost, mirrors). REGULATOR, Front Door Window For concern of front window binding diagnosed as front window regulator, please send pictures of the issue to [email protected] and contact Sandeep Tummuri at (248) 425-3419 If no response in 15 minutes, proceed with repair.
• 10220016Nov 27, 2019Electrical system. WIRING KIT, Enclosure (Mopar JL hard top conversion accessory kit) The HVAC control panel requires replacement when GTP sales code is present to restore rear defrost function. The switch is not provided in this kit and a service replacement part must be ordered. See service information procedure for switch replacement and below chart for replacement part numbers.
• 10220008Nov 27, 2019Vehicle speed control, Brakes, Other or unknown, Seats. LATCH, Folding Top For a concern of a loose latch in the closed position, it is not necessary to replace the latch unless broken. Refer to instructions in service library. The position of the receiver attached to the vehicle header can be adjusted to change the ammount of force required to latch.
• 10169164Nov 27, 2019Equipment, Electrical system. WIRING KIT, Enclosure (Mopar JL hard top conversion accessory kit) The HVAC control panel requires replacement when GTP sales code is present to restore rear defrost function. The switch is not provided in this kit and a service replacement part must be ordered. See service information procedure for switch replacement and below chart for replacement part numbers.
• 10169156Nov 27, 2019Equipment, Latches, locks and linkages. LATCH, Folding Top For a concern of a loose latch in the closed position, it is not necessary to replace the latch unless broken. Refer to instructions in service library. The position of the receiver attached to the vehicle header can be adjusted to change the ammount of force required to latch.
• 10220111Nov 26, 2019Forward collision avoidance, Air bags, Electrical system, Lane departure. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe one or more of the following:Brakes may intermittently apply unexpectedly together with Instrument Panel Cluster (IPC) warnings. IPC warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes.
• 10169259Nov 26, 2019Electrical system, Lane departure, 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 one or more of the following:Brakes may intermittently apply unexpectedly together with Instrument Panel Cluster (IPC) warnings. IPC warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes.
• 10220105Nov 22, 2019Lane departure, Electrical system, 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 one or more of the following:Brakes may intermittently apply unexpectedly together with Instrument Panel Cluster (IPC) warnings. IPC warnings for the Forward Collision Warning (FCW) informing the driver to apply the brakes.

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