My dtrl in my 99 Tahoe went out how do I turn them back on or working again.

What is your question?

I have a 1999 Chevy tahoe.. my dtrl just stopped working all of a sudden. I got to work at 5:30am in the morning, i was sitting in my truck turned the truck off started to truck about 10-15 minutes later to turn the heat on to warm up and I noticed my daytime running lamps were completely out how do I turn them back on or fix whatever reason why they might not be working

How long has your 1999 Chevrolet Tahoe had this problem?

Today