Originally Posted by ramfan1500
I have a 2010 ram trx that came with black heated mirrors without puddle lamps in them. I swapped them out for a set of factory mirrors that had puddle lamps in them. The puddle lamps will not light up but the mirrors will darken now when a car is behind you so it was not a total waste of time. I took my truck to the dealer and had it flashed so that the lamps would work also but they tried and could not get them to come on because my truck did not come with them from the factory so the evic does not allow you to turn them on or make the mirrors tilt down when the truck is put in reverse, hope this helps
you'd think they would be able to flash the ECU so the puddle lamps can operate. unless there's an extra physical wiring harness, it should just be a matter of software control. it's a shame to read this because i would also consider swapping over to the nicer mirrors.