For the 2018 Acura TLX, the factory low-beam and high-beam headlights use LED lighting. The supplied fitment data does not identify separate bulb replacements or a headlight-type variation, so verify the original assembly before ordering replacement parts.
The front fog lights, front parking lights, front side markers, rear side markers, tail lights, brake lights, center stop light, rear license plate light, and rearview-mirror lights are also listed as LED. The front turn signals are LED, while the rear turn signals and reverse lights use 7440 bulbs.
- Glove box: Compare the original bulb; fitment is listed as either 2721 or 74.
- Trunk: Compare the original bulb; fitment is listed as either 168 or 917.
- Interior: The interior light uses 158, and the vanity light uses 6615F.
- Dome and map lights: Listed as LED.
Because several exterior and interior applications are LED-equipped, confirm whether the light is an integrated LED unit or a replaceable bulb before purchasing.