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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
08111212023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. 3.6L Check Engine Light and Rough Running Engine This bulletin involves cutting off a wiring harness eyelet and splicing in a pigtail to the engine ground harness. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1050 - Intake Valve Control Solenoid 1 Circuit/Open. P1053 - Intake Valve Control Solenoid 2 Circuit/Open. P1056 - Intake Valve Control Solenoid 3 Circuit/Open. P1059 - Intake Valve Control Solenoid 4 Circuit/Open. P0010 - Bank 1 Camshaft 1 Position Actuator Circuit Open. P0020 - Bank 2 Camshaft 1 Position Actuator Circuit Open. P0013 - Bank 1 Camshaft 2 Position Actuator Circuit Open. P0023 - Bank 2 Camshaft 2 Position Actuator Circuit Open. In addition, the customer may notice one or more of the following conditions:The check engine light is illuminated. The engine is misfiring. A rough running engine.
19002212023-01-17. Service bulletin. STEERING. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following: A noise coming from the tailshaft of the steering column while turning.
S2108000181a2023-01-17. Service bulletin. POWER TRAIN:AXLE HUBS. Media Hub And Or Wireless Charging Pad Is Inoperative
S21080001812023-01-17. Service bulletin. ELECTRICAL SYSTEM. Media Hub And Or Wireless Charging Pad Is Inoperative
S21080001802023-01-17. Service bulletin. LANE DEPARTURE. Air Bag Warning Lamp On Or Wipers Stay On All The Time
S21180000112023-01-17. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.
S21080001722023-01-17. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s
S19250000082023-01-17. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
S21080001702023-01-17. Service bulletin. PARKING BRAKE. Head unit button stuck DTC code B14DA-2A
S21080001672023-01-17. Service bulletin. ELECTRICAL SYSTEM. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
S21080001632023-01-17. Service bulletin. ELECTRICAL SYSTEM. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
S21090000042023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
S21080001622023-01-17. Service bulletin. POWER TRAIN. High Voltage Battery Installed, New Power Pack Unit/BPCM, No High Voltage Output From Hybrid Battery, No DTC?s
08090212023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL; BACK OVER PREVENTION:SOFTWARE. UKG Radio Enhancements This bulletin involves updating the radio software level to 2036.07. Customers may experience one or more of the following:Screen flickering. Carplay audio does not always resume. In addition, the following software enhancements are available:Apple certification enhancements. Google certification enhancements.
08089212023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL; BACK OVER PREVENTION:SOFTWARE. UGA and UGG Radio Enhancements This bulletin involves inspecting and if required updating the radio software to 2036.08. Customers may experience one or more of the following: Screen flickering. 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 software updates are also available:Apple® certification enhancements. Google® certification enhancements.
08088212023-01-17. Service bulletin. POWER TRAIN. 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
24007212023-01-17. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION:SOFTWARE. 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).
14002212023-01-17. Service bulletin. EXTERIOR LIGHTING; 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).
08073212023-01-17. Service bulletin. HYBRID PROPULSION SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 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.
742442023-01-17. 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)
S2108000127-12023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21080001302023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Bubbles Or Delamination On The Radio Display
S21080001272023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21180000092023-01-17. 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.
S21080001192023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected

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