WenmarOpen by Wenmar Pro

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
08-088-212021-06-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Radio Enhancements This bulletin involves updating the radio software level to 2036.06. Customers may experience the following:Product plan UUID is not correct in Carplay®. Carplay audio does not always resume. Battery save vs. Battery Charge toggles back to Battery Charge after sleep cycle. When ?Charge Now? is selected on key-off outside of the charging schedule ? it does nothing. In addition, the following enhancements are included:Update power supply source from 1 amp to 2.1 amps. GOOGLE® certification enhancements - screen flickers
24-007-212021-06-28. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM; VISIBILITY. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system. In addition, the following software enhancement is also available:Improvements for customer concerns of 'cabin too warm', specifically in the mid ambient temperature range 4.5-15.5 °C (40-60 °F).
14-002-212021-06-28. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Incorrect Fuel Delivery Module This bulletin involves replacing the fuel pump module. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: P062A - Fuel Pump Control Performance. DTC is set due to the fuel tank was assembled with the incorrect fuel pump. The customer may also experience the following:A reduced level of performance or performance issues when requesting Wide Open Throttle (WOT).
08-073-212021-06-28. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. PHEV Ready Telltale This bulletin is to communicate that a customer may report the vehicle does not start with any warning indicators. A technician can not confirm any faults even if they can duplicate the reported concern.
742442021-06-28. Service bulletin. POWER TRAIN. Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
S2108000127 Rev.2021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001302021-06-28. Service bulletin. EQUIPMENT. Bubbles Or Delamination On The Radio Display
S21080001272021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21180000092021-06-28. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S21080001192021-06-28. Service bulletin. EQUIPMENT. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
S21080001212021-06-28. Service bulletin. ELECTRICAL SYSTEM. Check Engine Light On And Service Hybrid System Displayed. P0A0A-00 High Voltage System Interlock Circuit ?A? Is Active
S2008000010 Rev.2021-06-28. Service bulletin. ELECTRICAL SYSTEM. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S21080001222021-06-28. Service bulletin. ELECTRICAL SYSTEM. PHEV Parameters Are Not Showing Up On Mobile App
S21080001202021-06-28. Service bulletin. EQUIPMENT. Radio Volume Uncontrollable Or Changing On Its Own
S21080001182021-06-28. Service bulletin. VISIBILITY. Power Mirrors Are Inoperative
S21080001162021-06-28. Service bulletin. ELECTRICAL SYSTEM. Max Regeneration Does Not Remain On After Vehicle Is Restarted
S21180000072021-06-28. Service bulletin. ENGINE AND ENGINE COOLING. MIL Lamp On DTC P1CEA BOOST SIDE EVAP PURGE SYSTEM PERFORMANCE
S21140000022021-06-28. Service bulletin. ENGINE AND ENGINE COOLING. CEL (Check Engine Lamp) On Shortly After Filling Vehicle
S2108000098 Rev.2021-06-28. Service bulletin. EQUIPMENT. Radio Screen Freeze, Blank Screen And Reset
S21240000062021-06-28. Service bulletin. VISIBILITY. Customer Indicates The AC Compressor Is Loud At Times.
S2023000011 Rev.2021-06-28. Service bulletin. VISIBILITY. Wind Noise And Or Gap At Front Door Mirror Flag
S21230000292021-06-28. Service bulletin. BACK OVER PREVENTION. Squeak and or Chirp Noise From Lift Gate Glass
S21080001022021-06-28. Service bulletin. EQUIPMENT. Reverse Camera System Unavailable Message, Blue Screen Showing On Radio Display
S21180000062021-06-28. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
9004376 Rev. A2021-06-28. Service bulletin. EQUIPMENT. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email 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.