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Service bulletins for the 2019 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.

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

By type

By component

By trouble code

Bulletins, newest first
90041122019-10-28. Service bulletin. ELECTRICAL SYSTEM. Idle Related Components For concern of P0507 diagnostic trouble code, please verify the powertrain control module is at the latest software level prior to replacing any components related to P0507 diagnostics.
18-012-19 REV A2019-07-15. Service bulletin. POWER TRAIN. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P0456 - EVAP System Small Leak. P0128 - Thermostat Rationality. The following software enhancement is included:Enable Soot Retention for vehicles equipped with Gasoline Particulate Filter (GPF).
18-045-192019-07-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC).P249E-00 - Closed Loop Reductant Injection Control At Limit - Flow Too High.
09-002-19 REV A2019-07-15. Service bulletin. ENGINE. Diesel Low Pressure Exhaust Gas Recirculation (EGR) Valve Cleaning This bulletin involves cleaning the diesel low pressure EGR valve. Vehicles may display a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P045E - EGR -B- Control Stuck Open.
21-021-19 REV A2019-07-15. Service bulletin. POWER TRAIN. Transfer Case Oil Leak This bulletin involves removing and replacing six of the transfer case extension housing bolts. Customers may notice a fluid leaking on the ground from the middle of vehicle.
21-026-192019-07-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience excessive gear shifting above 120 kph (75 mph) at highway speeds.
21-021-192019-07-15. Service bulletin. POWER TRAIN. Transfer Case Oil Leak This bulletin involves removing and replacing six of the transfer case extension housing bolts. Customers may notice a fluid leaking on the ground from the middle of vehicle.
09-002-192019-07-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). Diesel Low Pressure Exhaust Gas Recirculation (EGR) Valve Cleaning This bulletin involves cleaning the diesel low pressure EGR valve. Vehicles may display a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P045E - EGR -B- Control Stuck Open.
90040852019-07-15. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE). SENSOR, Clutch Pedal Engineering is seeking information regarding P083F - Clutch Pedal Sensor A B Correlation Faults. Prior to component(s) replacement: Please Contact the following individuals: Joe Marigold (248) 701-8510 / joe.marigold@fcagroup.com Michael Lai (734) 286-0321 / michael.lai@fcagroup.com If no response in 15 minutes, proceed with repair
90040842019-07-15. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. ARMREST, Console If you are replacing a center console armrest for a latch issue, please note that the latch and latch cover are serviceable components. Please only replace the following part numbers for this issue: Latch: 68470797A$ Cover: 68470798A$ Failure to follow this could result in a chargeback
90040792019-07-15. Service bulletin. POWER TRAIN. PLUG/GASKET, Transmission Case For vehicles with a DEM manual transmission with a leak from the drain plug please contact Jeff Laduke at 810-422-3099. 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.