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The 2015 Toyota Corolla uses a 9005 bulb for the high beams and LED bulbs for the low beams and daytime running lights. The fog light uses an H16 bulb, but you can also use an H16 HID. If you notice the front headlight bulbs frequently burning out too soon, likely within months instead of years, it could be due to moisture getting into the headlight. In this case, try sealing the housing. Another common issue could be a loose electrical connection causing the bulb to short out or flicker while driving. It's important to address these problems promptly.
In a 2015 Toyota Corolla, the headlight bulb size is designated as 9005.