# B1821 on the 2012 Toyota Sienna

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 B1821

- [10047943](https://open.wenmarpro.com/bulletins/10047943), 2012-12-11: TOYOTA: AN INTERMITTENT EXHIBITION OF SRS LAMP ON WITH DIAGNOSTIC TROUBLE CODE \(DTC\) B1821 AND/OR B1826 CONDITION. IMPROVEMENT TO TERMINAL CRIMPING OF SIDE AIR BAG TO ADDRESS SITUATION. MODEL 2011\-2012 SIENNA.