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.

• 10248014Feb 10, 2023Back-over prevention (rear camera). Radio Over The Air Updating to 34.42 Software Version ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software…
• 10234487Feb 10, 2023Equipment. Radio Over The Air Updating to 34.42 Software Version ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software…
• 10248006Feb 8, 2023Vehicle speed control. Corrosion on Door, Hood And/or Swing Gate Hinges Corrosion found on the door, hood and/or swing gate hinge(s). This bulletin involves inspecting and replacing any hinge exhibiting corrosion. The replacement hinge is equipped with a Zinc shim (Fig. 1) .Zinc Shim
• 10247970Feb 8, 2023Equipment. Warranty Bulletin D-23-04 2018 - 2023 (Current) Jeep Wrangler (JL) and 2020 - 2023 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
• 10247942Feb 8, 2023Visibility (wipers, defrost, mirrors). Rear Wiper Does Not Turn On
• 10234479Feb 8, 2023Vehicle speed control. Corrosion on Door, Hood And/or Swing Gate Hinges Corrosion found on the door, hood and/or swing gate hinge(s). This bulletin involves inspecting and replacing any hinge exhibiting corrosion. The replacement hinge is equipped with a Zinc shim (Fig. 1) .Zinc Shim
• 10234443Feb 8, 2023Equipment. Warranty Bulletin D-23-04 2018 - 2023 (Current) Jeep Wrangler (JL) and 2020 - 2023 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
• 10234414Feb 6, 2023Suspension, Electronic stability control. Service Air Suspension Message In Cluster. C15AD-92-Ride Height System- Performance In Below Freezing Temperatures.
• 10247995Feb 3, 2023Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 10234468Feb 3, 2023Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 10247935Feb 2, 2023Body and structure. Shimmy Felt In Front End
• 10234408Feb 2, 2023Body and structure. Shimmy Felt In Front End
• 10247984Feb 1, 2023Vehicle speed control. Corrosion on Door hood Swing Gate Hinges Corrosion found on the door, hood and/or swing gate hinge(s). This bulletin involves inspecting and replacing any hinge exhibiting corrosion. The replacement hinge is equipped with a Zinc shim. (Fig. 1) .Zinc Shim
• 10234457Feb 1, 2023Vehicle speed control. Corrosion on Door hood Swing Gate Hinges Corrosion found on the door, hood and/or swing gate hinge(s). This bulletin involves inspecting and replacing any hinge exhibiting corrosion. The replacement hinge is equipped with a Zinc shim. (Fig. 1) .Zinc Shim
• 10231815Jan 31, 2023Back-over prevention (rear camera). Radio Over The Air JR34.3 Updating to JR34.32.Software Version Customers may experience one or more of the following: Not be able to use Mobile Wi-Fi upon start up. Hotspot gives a no Internet connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a…
• 10231792Jan 24, 2023Back-over prevention (rear camera). Radio Over The Air Updating to 40.12 Software Version Mobile Wi-Fi inoperative upon start up. Hotspot gives 9No Internet9 connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be…
• 10231738Jan 24, 2023Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Intake Manifold Runner Valve Diagnostic Trouble Codes (DTCs) Setting In Extreme Cold Ambient Temperatures.
• 10231769Jan 7, 2023Electrical system, Back-over prevention (rear camera), Brakes, Electronic…. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: **P016F - Closed Loop Fuel Pressure Control At Limit - Pressure Too Low. P025C - Fuel Pump Module Control Circuit Low. P208B - Reductant Pump 1 Control Performance…
• 10231714Jan 7, 2023Visibility (wipers, defrost, mirrors). Defogger Is Not Working. Terminal Detached From The Glass.
• 10231711Jan 6, 2023Equipment. Washer Light On And Will Not Turn Off After Adding Washer Solvent.
• 10229816Dec 16, 2022Back-over prevention (rear camera), Steering, Equipment. UAQ and UCQ Radio Enhancements Customers may experience one or more of the following: ? **Wi-Fi hotspot connection failure. ? Speaker popping, crackle noise during Voice Recognition (VR) response and navigation guidance. ? Mobile Station Integrated Services Digital Network (MSISDN) missing from radio, no connected services working.** ? Intermittent, black radio display screen (Rear View Camera (RVC) not affected)…
• 10229810Dec 15, 2022Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates. NOTE: Digital imaging pre authorization is required for Smart Warranty Base dealers or Pre Approval is required from Regional Office depending on market.
• 10230541Nov 24, 2022Equipment, Electrical system. Radio Over The Air Updates to JR34.3/JR34.4 and JR34.41
• 10227763Oct 28, 2022Visibility (wipers, defrost, mirrors). Sky One Power Top Rattle This bulletin involves checking the torque values on the Sky One-Touch power top screws andreplacing all 16 screws if one is found with an incorrect torque value. Customers may experience the following: A rattle noise over bumps and rough roads while driving coming from the roof area.
• 10227721Oct 26, 2022Electrical system, Equipment. Radio Remained On After Ignition Is Switched Off, Dead Battery from Excessive Radio Current Draw
• 10227712Oct 13, 2022Brakes. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
• 10227736Oct 4, 2022Equipment. Radio Enhancements Software Level 1848.34 This bulletin involves updating the radio software level to 1848.34. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day (JL with 5 inch screen). Ghost Touch issue, features, modes and App?s change without drivers input (does not affect rearview camera). Wireless connectivity pop noise. Pop message ?SXM Wait?…
• 10227734Oct 1, 2022Engine cooling. Spark Knock/Engine Symptoms This bulletin involves cleaning the piston heads and cylinder head combustion chambersto resolve a spark knock condition being caused by oil intrusion through the PCV system. The customer may describe a knocking or pinging noise coming from the engine upon acceleration.
• 10225955Sep 28, 2022Engine cooling. PUMP, Water (Water Pump Inlet Tube) For concern of leak at water pump, please check and re-torque water pump inlet tube fasteners as described in Service Bulletin 07-001-20 before replacing the water pump. Please also check the gasket from the block to the water pump. This gasket can be serviced separately.
• 10225978Sep 2, 2022Body and structure. Power Top Rattles Over Bumps And Rough Roads.
• 10225369Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10225232Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10229513Aug 29, 2022Transmission and drivetrain. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
• 10229509Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10229507Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10225366Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10225364Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10225229Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10225227Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10229503Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 10225360Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 10225223Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 10229572Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225424Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225287Aug 19, 2022Body and structure, Other or unknown. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10229487Aug 11, 2022Engine cooling. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
• 10229483Aug 11, 2022Electrical system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10225348Aug 11, 2022Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
• 10225346Aug 11, 2022Fuel system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10225211Aug 11, 2022Equipment. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.

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