# P0420 on the 2010 Toyota Tacoma

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 P0420

- [10132102](https://open.wenmarpro.com/bulletins/10132102), 2018-04-02: Some 2010 model year Tacoma vehicles equipped with the 2TR\-FE engine may exhibit a front exhaust pipe catalyst rattle noise and/or MIL ?ON? condition with DTC P0420 \(Catalyst System Efficiency Below Threshold\) stored in the Engine Control Module \(ECM\) \(SAE Term: Powertrain Control Module/PCM\). Refer to the repair procedure to address this condition.
- [10075943](https://open.wenmarpro.com/bulletins/10075943), 2016-07-07: Some 2010 model year Tacoma vehicles equipped with the 2TR\-FE engine may exhibit a front exhaust pipe catalyst rattle noise and/or MIL "ON" condition with OTC P0420 \(Catalyst System Efficiency Below Threshold\) stored in the Engine Control Module \(ECM\) \(SAE Term: Powertrain Control Module/PCM\) . Refer to the repair procedure to address this condition .