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The Acura TSX in 2004 uses H1 and 9005 bulbs for its headlights. Replacing these bulbs is a simple task that won't break the bank, typically costing between $10 and $20 each. To swap out a bulb, start by removing the headlight cover, which is secured with a few screws. Once the cover is off, you can unscrew the old bulb, similar to changing a light bulb in a ceiling fan, and remove it. Insert the new bulb, replace the cover, secure it with screws, and don't forget to test the new bulbs afterward.
I'm confused because I purchased a Tsx for my son, but I keep seeing different bulb numbers everywhere.
The 2007 Acura TSX headlight needs an HID-D2S bulb for the low beam and an H1 bulb for the high beam.
The high beam light bulb size for the 2004 Acura TSX is H1, and for the low beam, it is D2S.