# B2577 on the 2026 Ram 1500

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.

## Bulletins for this model year that name B2577

- [11034893](https://open.wenmarpro.com/bulletins/11034893), 2026-07-08: Flash: Door Control Module \(DCM\) Updates Technician may find the following Diagnostic Trouble Code \(DTC\): SYMPTOM: ● B2577\-00 \- Window Not Calibrated / Lost Calibration. Customers may experience one or more of the following: ● Driver and passenger window 'auto up' function is inoperative. This bulletin involves inspecting and possibly reprogramming the DDM and PDM with the latest available software
- [11033337](https://open.wenmarpro.com/bulletins/11033337), 2026-06-03: Flash: Door Control Module \(DCM\) Updates Technician may find the following Diagnostic Trouble Code \(DTC\): ● B2577\-00 \- Window Not Calibrated / Lost Calibration.\*\* Customers may experience one or more of the following: ● Driver and passenger window 'auto up' function is inoperative. This bulletin involves inspecting and possibly reprogramming the DDM and PDM with the latest available software
- [11032313](https://open.wenmarpro.com/bulletins/11032313), 2026-05-06: Door Control Module \(DCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code \(DTC\): ● B2577\-00 \- Window Not Calibrated / Lost Calibration. Customers may experience one or more of the following: ● Power windows are inoperative and will not respond to switch inputs.. ● Driver and passenger window auto up/down functions inoperative. This bulletin involves inspecting and possibly reprogramming the DDM and PDM with the latest available software.
- [11023316](https://open.wenmarpro.com/bulletins/11023316), 2025-09-24: Door Control Module \(DCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code \(DTC\): ● B2577\-00 \- Window Not Calibrated / Lost Calibration. Customers may experience one or more of the following: ● Power windows are inoperative and will not respond to switch inputs.. ● Driver and passenger window auto up/down functions inoperative