# P0621 on the 2014 Chevrolet Malibu

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.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0621

- [10201128](https://open.wenmarpro.com/bulletins/10201128), 2021-09-07: Malfunction Indicator Lamp \(MIL\) Illuminated with DTCs P2096 and/or P0621 Set
- [10190564](https://open.wenmarpro.com/bulletins/10190564), 2021-04-26: Malfunction Indicator Lamp \(MIL\) Illuminated with DTCs P2096 and/or P0621 Set Condition/Concern Some customers may comment on the malfunction indicator lamp \(MIL\) being illuminated. Technicians may find diagnostic trouble codes \(DTCs\) P2096: Post Catalyst Fuel Trim System Low and/or P0621: Generator L\-Terminal Circuit set as current or history
- [10114726](https://open.wenmarpro.com/bulletins/10114726), 2017-08-15: This Preliminary Information communication provides information to the technician about vehicles that may have an intermittent "Service Charging System" message on the Driver Information Center or a Battery Malfunction Indicator Lamp during an auto stop event. If there is no fault found during diagnostics for P0621 contact General Motors Technical Assistance Center for further assistance.
- [10114415](https://open.wenmarpro.com/bulletins/10114415), 2017-08-15: This Preliminary Information communication provides information to the technician about vehicles that may have an intermittent "Service Charging System" message on the Driver Information Center or a Battery Malfunction Indicator Lamp during an auto stop event. If there is no fault found during diagnostics for P0621 contact General Motors Technical Assistance Center for further assistance.
- [10057594](https://open.wenmarpro.com/bulletins/10057594), 2015-06-11: GENERAL MOTORS 2014\-2015 CHEVROLET MALIBU, 2015 CHEVROLET IMPALA: INTERMITTENT SERVICE CHARGING SYSTEM MESSAGE/ BATTERY MIL DTC P0621. \*LJ