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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
S2119000001 Rev.2021-03-15. Service bulletin. STEERING; EQUIPMENT. Click Pop Creak Noise While Turning Steering Wheel
S21140000012021-03-15. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Humming/Buzzing Noise From Under The Hood With The Key Off.
08-109-202021-03-01. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. UGQ Radio Enhancements This bulletin involves inspecting and if required updating the radio software to: 39.3 Customers may experience the following:CarPlay® audio does not mute during an active Ecall.
09-013-20 REV. A2021-03-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; ENGINE. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following:Rough running engine.
09-013-202021-03-01. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following: Rough running engine.
S20250000082021-03-01. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. Excessive Diesel Exhaust Fluid (DEF) Consumption.
S2008000031 Rev.2021-02-16. Service bulletin. EQUIPMENT. Low Charging Voltage Displayed On Cluster
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.
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.
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.
S1908000214 Rev.2020-11-30. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. Bluetooth Speaker External Charger
S2008000123 Rev.2020-10-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. (Revision B) Radio Resets While Driving Under 1000 RPM
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.
S20080001032020-08-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. No Start, High Current Fuse Array (HCFA) Location And Testing

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