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Service bulletins for the 2014 Toyota Corolla

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.

440 on file from NHTSA, as of 2026-10-19.

About P2420 on the 2014 Toyota Corolla: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2420 are shown. Show all

Bulletins, newest first
T-SB-0024-15_Rev2018-04-02. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC. TSB: REVISION NOTICE February 06, 2018 Rev1: ? Applicability has been updated to include 2016 ? 2018 model year Corolla vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2014 ? 2018 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck Off). Follow the Repair Procedure in this bulletin to address this condition. APPLICABLE WARRANTY ? This repair is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle?s in-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin.
T-SB-0024-15_Rev2018-03-12. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB: REVISION NOTICE February 06, 2018 Rev1: ? Applicability has been updated to include 2016 ? 2018 model year Corolla vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2014 ? 2018 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck Off). Follow the Repair Procedure in this bulletin to address this condition. APPLICABLE WARRANTY ? This repair is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle?s in-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin.
T-SB-0024-152017-08-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB: Some 2014 - 2015 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck OFF). Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0024-152017-08-14. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB: Some 2014 - 2015 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck OFF). Follow the Repair Procedure in this bulletin to address this condition.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.