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Service bulletins for the 2020 Jeep Gladiator

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.

684 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
S20230000252020-06-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY. Tonneau Cover Appearance
S19250000082020-06-22. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
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
S19080001012020-06-22. Service bulletin. EQUIPMENT:ELECTRICAL. Remote Phone App Does Not Communicate With Vehicle Radio
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
21-034-202020-05-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following condition:A loud whistle noise upon engine start up.
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
08-046-202020-05-26. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Body Control Module (BCM) Reconfigure for Central Vision Processing Module (CVPM) This bulletin involves Restoring Vehicle Configuration in the BCM. Customers may notice the following condition:Two zoom buttonsFig. 1appear on the Rear View Camera (RVC) screen.
W172020-05-26. Service bulletin. EQUIPMENT. Customer Satisfaction Notification W17 Missing Side Steps
D-20-052020-05-26. Service bulletin. EQUIPMENT. Jeep Gladiator (JT) - All Models and Model Years Equipped With Truck Hero, Inc. Mopar Components - Warranty Coverage
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
S20230000252020-05-26. Service bulletin. EQUIPMENT. Tonneau Cover Appearance
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
S20080000382020-05-26. Service bulletin. ELECTRICAL SYSTEM. Front Fogs Lamps Flicker Or Do Not Turn On Intermittently
S20080000362020-05-26. Service bulletin. ENGINE. No Start, HVAC Control Panel Illumination Flickers

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