Service bulletins for the 2014 Nissan Sentra
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
194 on file from NHTSA, as of 2026-10-19.
About P050B on the 2014 Nissan Sentra: what the code means, and the bulletins and recalls about the same components.
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By component
By trouble code
Only bulletins with trouble code: P050B are shown. Show all
| NTB16059 | 2021-05-10. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). IF YOU CONFIRM The MIL is ON with DTC P050B (Cold Start Control) stored, and there are no drivability issues. ACTION 1. For 2013 and 2014 models only - Inspect the color of the PCV valve, replace if the color is orange 2. If needed, for all applied models, reprogram the ECM. See this bulletin for further detail. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.