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Service bulletins for the 2020 Jeep Wrangler

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1020 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
S21090000102022-09-15. Service bulletin. ENGINE. 3.0L Ecodiesel Engine Oil Information
S2125000002RevA2022-09-15. Service bulletin. FUEL SYSTEM, GASOLINE. 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
S1918000008RevC2022-09-15. Service bulletin. BACK OVER PREVENTION. 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 codes, check for the condition listed above.
S2108000184REVA2022-09-15. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; AIR BAGS. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
S21240000112022-09-15. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer indicates that the ESS functionality is not operational while using different functions of the HVAC system.
04-001-212022-08-22. Service bulletin. ENGINE AND ENGINE 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.
08-133-212022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. 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 of the following: Lost radio presets. SXM favorite song not displaying/playing. Radio display screen is black, intermittent. Radio freeze intermittent. Incorrect navigation address/location/directions. Bluetooth pair or connection issue. Radio channel change by itself. SXM icon inoperative. Backup camera has black display screen. High pitch chime noise. Contact list not loading. Device not supported message. Remote app inoperative. Travel-Link fuel price incorrect. Backup camera gridlines missing. Unable to adjust volume. In addition the following enhancements are included: Heavy Duty (HD)Truck USB HUB improvements. HD Truck heated steering wheel improvements.
23-001-212022-08-22. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:SUPPORT DEVICE/STRUT; UNKNOWN OR OTHER. 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).
S18180000242022-08-22. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Diesel Fuel Injector Cleaning Procedure
S21080002042022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Lockup In The Software Installation Screen After Accepting FOTA Update (Incorrect "S2008000204" indicated on published document)
S21090000102022-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION: OIL COOLER. 3.0L Ecodiesel Engine Oil Information
S21250000022022-08-22. Service bulletin. FUEL SYSTEM, GASOLINE. 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
S21080001982022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
S19180000082022-08-22. Service bulletin. ENGINE AND ENGINE 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 codes, check for the condition listed above.
S21080001842022-08-22. Service bulletin. AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
S21240000112022-08-22. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES. Customer indicates that the ESS functionality is not operational while using different functions of the HVAC system.
08-019-212022-07-18. Service bulletin. BACK OVER PREVENTION; SEAT BELTS; STRUCTURE; TRAILER HITCHES; ELECTRICAL SYSTEM; LANE DEPARTURE; EXTERIOR LIGHTING. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: B1783-01 - Stop Lamp Control - General Electrical Failure. The customer may also comment or note that the DTC set after the installation of a Mopar or an aftermarket trailer brake controller.The 12 volt back feed of the aftermarket trailer brake controller into the redundant connection between the Body Control Module (BCM) and the Anti Lock Brake Module (ABS) is causing a design intent diagnostic detection of the stop lamps.Software enhancement includes:Removal of the warning lamp associated with this DTC so an aftermarket trailer brake controller can be used.
08-015-212022-07-18. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. Radio Enhancements This bulletin involves updating the radio software level to 1848.34. Customers may experience one or more of the following:Radio display screen flickers. Radio resets with RPM less than 1000 RPM (DT and JL with 3.0L Diesel). Clock loses 6 seconds per day (JL with 5 inch screen). 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.
08-003-212022-07-18. Service bulletin. STEERING; POWER TRAIN. 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 steps 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 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 excessive play.This Technical Service Bulletin (TSB) repair will NOT correct a sustained steering shake, shimmy or vibration. Video aid has been developed for this issue. Refer to the detailed service procedures available in DealerConnect>Service Library under: Service Info>19 - Steering / Linkage / Damper, Steering /Removal and Installation.
23-001-212022-07-18. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; EQUIPMENT. Rear Glass Prop Rod Failure This bulletin involves inspecting the rear backlite prop rod Julian dates and possibly replacing both prop rods. These vehicles may have been built with the following symptom/condition:Rear glass fails to stay in the open position (prop rods will not support glass).
718382022-07-18. Service bulletin. VISIBILITY:WINDSHIELD. Warranty Bulletin D-18-16 Rev. B Mopar Windshield Made With Corning Gorilla Glass (Rev. B)
S2108000025 Rev.2022-07-18. Service bulletin. BACK OVER PREVENTION. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S21230000042022-07-18. Service bulletin. WHEELS. Front Wheel Well Liner Contacting Tire And Or Loose
S2023000041 Rev.2022-07-18. Service bulletin. TRAILER HITCHES. MOPAR Trailer Brake Accessory Kit And Instructions
S21080000232022-07-18. Service bulletin. AIR BAGS; BACK OVER PREVENTION. Blind Spot Sensor Light Operate Sporadically And Indicates False Detection Without Any DTC

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.