# B1A7A on the 2023 Cadillac Escalade ESV

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 B1A7A

- [10236169](https://open.wenmarpro.com/bulletins/10236169), 2023-05-15: This Preliminary information communicates an issue during start up that the following symptoms occur: \- Service Safety Restraints System Message \- Sunroof Inoperative \- Sunshade Lights Inoperative \- Dome Lights Inoperative \- Power Liftgate Inoperative when using switch in overhead console \- DTCs U1121 set in the BCM and B1A7A set in the Restraints Module Dealers are to replace the overhead roof console with a new console that has revised software.
- [10236134](https://open.wenmarpro.com/bulletins/10236134), 2023-05-15: This Preliminary information communicates an issue during start up that the following symptoms occur: \- Service Safety Restraints System Message \- Sunroof Inoperative \- Sunshade Lights Inoperative \- Dome Lights Inoperative \- Power Liftgate Inoperative when using switch in overhead console \- DTCs U1121 set in the BCM and B1A7A set in the Restraints Module Engineering is currently working on a fix and in the meantime a customer can cycle the dome light switch on/off to correct the condition during that ignition cycle.
- [10231665](https://open.wenmarpro.com/bulletins/10231665), 2023-02-13: This Preliminary information communicates an issue during start up that the following symptoms occur: \- Service Safety Restraints System Message \- Sunroof Inoperative \- Sunshade Lights Inoperative \- Dome Lights Inoperative \- Power Liftgate Inoperative when using switch in overhead console \- DTCs U1121 set in the BCM and B1A7A set in the Restraints Module Engineering is currently working on a fix and in the meantime a customer can cycle the dome light switch on/off to correct the condition during that ignition cycle.
- [10224301](https://open.wenmarpro.com/bulletins/10224301), 2022-10-17: This Preliminary information communicates an issue during start up that the following symptoms occur: \- Service Safety Restraints System Message \- Sunroof Inoperative \- Sunshade Lights Inoperative \- Dome Lights Inoperative \- Power Liftgate Inoperative when using switch in overhead console \- DTCs U1121 set in the BCM and B1A7A set in the Restraints Module Engineering is currently working on a fix and in the meantime a customer can cycle the dome light switch on/off to correct the condition during that ignition cycle.