2012 Acura MDX bulb fitment starts with a D2S low beam and a 9005 high beam. The daytime running light also uses a 9005 bulb. The supplied fitment data does not identify separate projector or non-projector headlight applications, so verify the original housing and connector before ordering.
- Fog lights are listed with two LED options: H11 LED and H16 LED. Confirm the installed socket before purchase.
- Front turn signals use 7440A, while rear turn signals use 7440.
- Reverse lights use 921. Brake, center stop, tail, dome, and map lights are listed as LED applications.
- Parking and license plate lights may use either 168 or 917. Trunk lighting also lists 168 or 917.
- Front and rear side markers use 168NA, the step light uses DE3021, and the vanity light uses 24.
Because several locations have more than one listed option, compare the removed bulb or socket with these sizes before replacing it.