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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
S20180000012020-04-27. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P26FB ? EGR Cooler Bypass Control Stuck Closed Bank 1 Set.
S18190000042020-04-27. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. Shimmy Felt In Front End
S202300000172020-04-27. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES; BACK OVER PREVENTION. Whistle Wind Noise From Windshield Area.
S20250000012020-04-27. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
S20250000022020-04-27. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. 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.
S20030000012020-04-27. Service bulletin. STRUCTURE:BODY:BUMPERS. Noise From Front Axle Area Over Bumps
S20180000022020-04-27. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
90042192020-04-27. Service bulletin. ENGINE AND ENGINE 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.
18-012-202020-04-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. 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
18-013-202020-04-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. 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
23-011-202020-04-06. Service bulletin. SEATS. 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
08-013-202020-04-06. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; ELECTRICAL SYSTEM. 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 auto-on comfort feature. With the symptom/condition listed above, there?s no setting in the radio to turn the auto-on comfort feature off.
D-20-022020-04-06. Service bulletin. EQUIPMENT. DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers
S20030000012020-04-06. Service bulletin. SUSPENSION. Noise From Front Axle Area Over Bumps
S20080000132020-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Key Programming, Security Pin Request, Pin Invalid
S20080000122020-04-06. Service bulletin. LANE DEPARTURE; BACK OVER PREVENTION; ELECTRICAL SYSTEM. Rear Park Assist Warning Chime, Rear Park Sense Unavailable Wipe Sensor Message While Backing Up No Object Present
S14080003842020-04-06. Service bulletin. ELECTRICAL SYSTEM. Intelligent Battery Sensor-IBS Installation, Battery Charging Message, Start Stop Charging Warning Lamp Illuminated On Stop Start Equipped Vehicles
S20230000122020-04-06. Service bulletin. STRUCTURE; EQUIPMENT. Wind Whistle Noise From Glove Box Area Above 35 MPH
S18050000062020-04-06. Service bulletin. ELECTRICAL SYSTEM. ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
S20230000112020-04-06. Service bulletin. STRUCTURE. Wind Noise And Or Gap At Front Door Mirror Flag
S19080001022020-04-06. Service bulletin. EQUIPMENT. Audio Mute On All Sources Except AM
S20080000102020-04-06. Service bulletin. EQUIPMENT. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup Or Freeze.
90042232020-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING. 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 by trimming 3mm of rubber on left side & bottom. ?WK ? Jeep Grand Cherokee ?WD ? Dodge Durango WK/WD NOTE:A vent kit is being created now and will replace the existing tube with a longer one and add an elbow to it for routing (availability is TBD).
90041902020-04-06. Service bulletin. SEATS; 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.
90041162020-04-06. Service bulletin. VEHICLE SPEED CONTROL; PARKING BRAKE. 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. Thoroughly clean mounting bracket of any contamination prior to installing a new EZ entry handle as outlined in Service Bulletin 23-002-20.

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