2011 Access, no DTRL

Searched the site, didn't see anyone else with this issue.

I have a 2011 Access TRD Sport that I bought new. I've always driven my vehicles with the headlights on at all times.

I was just reading about adding daytime running lights to my truck so that I'm not burning through headlight bulbs as often and was surprised to discover that the 2011 is supposed to have them stock.

My owner's manual mentions them as "if equipped", but Edmunds does list them as a feature of this trim level.

I checked this in front of the big windows of my office building. Parking brake off, in gear (manual 6spd), driving toward the windows and no light. I could very clearly see the lights when my hazard or turn signals were activated.

Fuses all look good. I haven't opened up the rocker panel to look for the relay. Anything else I should be looking for?