This page for the 2005 Acura TL helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Because exterior and interior lamps can vary by trim, package, and market, it is best to confirm the exact bulb location on your vehicle and compare it with the chart below.
On the 2005 Acura TL, several lighting points use different bulb types, including headlights, daytime running lights, turn signals, brake lights, reverse lights, and cabin bulbs. Using the bulb chart by position makes it easier to find the right fit for each socket instead of guessing from appearance alone.
For best fitment, always compare your TL’s trim and lighting package with the listed bulb positions, since some cars may differ by body style or market. Be careful when mixing halogen and LED replacements: some exterior locations are already listed as LED, while others use halogen-style bulbs such as 9005, 921, D2S, 7443, 7440, 168, 194, 2825, 2721, 168NA, and 74. If you are planning an aftermarket LED conversion, check for proper beam pattern, polarity, and any warning or compatibility issues before ordering. When possible, remove the installed bulb and verify the number printed on the base, because that is the most reliable way to confirm fitment for your specific 2005 Acura TL.