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B18BA on the 2020 Chrysler 300

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name B18BA
08031212022-09-26. Service bulletin. Door Control Module Window Inoperative This bulletin involves replacing one or both of the front door modules. The technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:B18BA-12 - Window Control - Circuit Short to Battery B18BA-13 - Window Control - Circuit Open In addition the customer may notice one or more of the following:Driver and/or passenger windows stop working. If the window switch is held in the up position for at least two seconds,the obstruction autodown function may not work. Windows may go up slower than expected.
08-031-212021-04-26. Service bulletin. Door Control Module Window Inoperative This bulletin involves replacing one or both of the front door modules. The technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:B18BA-12 - Window Control - Circuit Short to Battery B18BA-13 - Window Control - Circuit Open In addition the customer may notice one or more of the following:Driver and/or passenger windows stop working. If the window switch is held in the up position for at least two seconds,the obstruction autodown function may not work. Windows may go up slower than expected.
90043342021-03-01. Service bulletin. Power Window Regulator or Motor Owners may complain that the Driver and or Passenger Windows are inoperative. Technician may find DTC?s B18BA-12 - Window Control - Circuit Short to Battery, B18BA-13 - Window Control - Circuit Open (stored or active). Replace the DDM or PDM per detailed repair information in Service Library or reference Star Online Publlication S2008000182. Replacing regulators or motors will not correct this issue.

3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.