WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Only bulletins with component: Lighting are shown. Show all

Bulletins, newest first
JSD-Region Lette2018-10-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; EXTERIOR LIGHTING. Region Letter: August 2, 2018 The descriptions for OpCodes JSD005, JSD006 JSD007, and JSD008 have been updated. An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be operated up to approximately 37 mph.
JSD-Region Lette2018-10-15. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Region Letter: An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be operated up to approximately 37 mph.
T-TT-0328-152018-04-23. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. TT: Some vehicles with aftermarket Headlamps (non OEM) are being repaired/replaced under warranty with OEM equipment.
T-TT-0328-152018-04-02. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. TT: Some vehicles with aftermarket Headlamps (non OEM) are being repaired/replaced under warranty with OEM equipment.

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