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Middle of your dash up by the windshield. little square "smoked plastic". cover it up and your dash lights will come on all the time. Read somewhere guys were coloring the plastic with a black marker but I haven't done that yet.
All of these answers seem backwards to me. It sounds like you want to use daytime running lights and when you turn on your fog lights it dims your dash lights. If you cover that sensor on the dash it will turn on your lights ( if the switch is in the auto position) and that will dim your dash lights. You can turn them brighter, but is it enough?
I think you should be asking how to mod for daytime running lights.
I did an advanced search of Daytime Running Lights for 6.7 Diesel and found that the dealer can enable the daytime running lights and your dash lights will stay at daytime brightness
I had the dealer turn on the daylight running light feature on my truck and it works well. In the daytime I have headlights only and my dish lights are very bright as well. I run mine in auto all the time and when it starts to get dark it switches to night time mode and the dash lights get dimmer and the marker and tail lights come on. It was well worth it for me.
I always run with lights either fogs or headlights and fogs
Depending on the available ambient light my dash lights will not be on
In low light situations I can't see the dash - I want my dash lights on - I have the dial turned to max one click away from turning on the dome light
Is there some way to have the dash lights come on when either fogs or headlights are turned on
I don't use the auto lamp feature
My dash lights go dim as soon as I turn on my headlights. They go so dim that I almost can't see the dash. I would love to have the dash lights on FULL light at all times, especially at night!