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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
S18210000062020-06-22. Service bulletin. TIRES. Oversized Tire Calibration For Customized Jeep Wrangler And Galdiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
S18210000052020-06-22. Service bulletin. POWER TRAIN; EQUIPMENT; TIRES. Required Updates When Changing Tire Sizes, Installing Mopar Lift Kits With Larger Tires, Manual Transmission Vehicles Setting DTC P08A6
S20080000732020-06-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. VP4 Panasonic Radio USB Software Update Error Codes And Guidelines For Recovery
S20080000722020-06-22. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. No Crank, Extended Crank To Start, MIL Lamp On
S20080000332020-06-22. Service bulletin. ENGINE; ELECTRICAL SYSTEM:WIRING. MIL Lamp On, DTC P0325 - Knock Sensor 1 Circuit
S19080001662020-06-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Stop Start Inoperative, Auxiliary Battery Low Requires Charging, No Start
S18080002842020-06-22. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; ELECTRICAL SYSTEM; EQUIPMENT. Blind Spot Alert Temporarily Unavailable Is Displayed On The EVIC. Power Mirrors And/Or Power Door Locks Do Not Function
90042572020-06-22. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. FILTER KIT, Engine Oil When refilling oil on a JT, JL, DT, or RU equipped with a 3.6L Pentastar UPGRADE engine, please be advised that the engine oil capacity is 5 quarts of oil.
23-015-202020-05-26. Service bulletin. STRUCTURE; EQUIPMENT. Disinfectant Solution Recommended for COVID-19
08-049-202020-05-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery replacements are necessary.
18-039-202020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE. Possible Driveability Issues due to the Winter-Blend Fuel into the Warmer Season
07-001-20 REV. A2020-05-26. Service bulletin. ENGINE AND ENGINE COOLING. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
S18080001522020-05-26. Service bulletin. ELECTRICAL SYSTEM. CEL (Check Engine Lamp) Illuminates, Recent PCM Replace Or Flash Update Performed, DTC P057B Brake Pedal Position Sensor Circuit Performance
S20230000162020-05-26. Service bulletin. SEATS. Squeak Noise From Rear Seat
S20250000042020-05-26. Service bulletin. ELECTRICAL SYSTEM. Customer complains of the MIL lamp on. Technician observes DTC P0456 EVAP System Small Leak or P0455 EVAP System Large Leak detected set in PCM.
S20080000602020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. Radio Issues With iPhone 11
S20080000592020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. Error Code 20 Message On the Radio Screen
S20080000562020-05-26. Service bulletin. ELECTRICAL SYSTEM. Intermittently A No Crank No Start Condition Exists
S20080000482020-05-26. Service bulletin. EQUIPMENT. Phone Contacts Will Not Load
S20190000022020-05-26. Service bulletin. STEERING. Hands On Steering Wheel Message In EVIC
S20240000042020-05-26. Service bulletin. VISIBILITY; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer Indicates Vehicle Has Poor Air Flow Through Demister (Side) Dash Vents
S20080000452020-05-26. Service bulletin. ELECTRICAL SYSTEM. Apps Or Icons Grayed Out
S20080000312020-05-26. Service bulletin. EQUIPMENT. Low Charging Voltage Displayed On Cluster
S19080001022020-05-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Audio Mute On All Sources Except AM
S20230000202020-05-26. Service bulletin. BACK OVER PREVENTION; POWER TRAIN. Tick Noise From A-pillar Front Power Top Side Rail

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