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Service bulletins for the 2021 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.

1062 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
S1925000008 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES; FUEL SYSTEM, GASOLINE. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
S1625000005 Rev.2020-12-28. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
S20180000122020-12-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
S2025000001 Rev.2020-12-28. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
90043332020-12-28. Service bulletin. ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter If you are replacing the oil cooler/filter housing for an oil leak that appears to be between the cooler, and the engine block, please refer to all published service information regarding proper diagnosis of oil leaks in this area before proceeding. If all proper diagnosis has been performed, and there is still an active leak, please replace the oil cooler/filter housing gasket (pn# 68505111A$) first before replacing the housing.
S20080001802020-12-21. Service bulletin. VISIBILITY; VISIBILITY:REAR WINDOW WIPER/WASHER. Rear Wipers Do Not Park Correctly After Rear Wiper Swipe Operation
S20080001792020-12-21. Service bulletin. INTERIOR LIGHTING; ELECTRICAL SYSTEM. Headlamp Switch Dimmer Switch Controls Cannot Control Interior Ambient Lighting
S20090000042020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
S20230000412020-12-21. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; EQUIPMENT. MOPAR Trailer Brake Accessory Kit And Instructions
S20080001722020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
S1925000008 Rev.2020-12-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE; FUEL SYSTEM, DIESEL. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
S1625000005 Rev.2020-12-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
S20180000122020-12-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
S2025000001 Rev.2020-12-21. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
90043332020-12-21. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter If you are replacing the oil cooler/filter housing for an oil leak that appears to be between the cooler, and the engine block, please refer to all published service information regarding proper diagnosis of oil leaks in this area before proceeding. If all proper diagnosis has been performed, and there is still an active leak, please replace the oil cooler/filter housing gasket (pn# 68505111A$) first before replacing the housing.
S20080001562020-11-30. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS; ENGINE. CEL (Check Engine Lamp) On, Intermittent Hard Starting, Rough Idle
S2008000085 Rev.2020-11-30. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; EXTERIOR LIGHTING:BRAKE LIGHTS. ABS, ESC Lamp On, Red Brake Lamp Flashing
90043112020-11-30. Service bulletin. WHEELS; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. 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.
S1921000007 Rev.2020-10-26. Service bulletin. ENGINE AND ENGINE 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
S1923000018 Rev.2020-10-26. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. (Revision A) Water Leak From Front Or Rear Of Sky Slider Open Top
S1821000006 Rev.2020-10-26. Service bulletin. TIRES. (Revision A) Oversized Tire Calibration For Customized Jeep Wrangler, Gladiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
S2008000123 Rev.2020-10-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. (Revision B) Radio Resets While Driving Under 1000 RPM
S20180000092020-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; 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.
S1925000008 Rev.2020-09-28. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. (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.
90036372020-09-28. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT. 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 Auto or Apply Carplay functionality, please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.

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