daytime lights (headlights) will not come on when vehicle is started. fuse is ok on 1999 GMC Suburban 1500

it is known as the drl system (daytime running lights)

by in Potwin, KS on July 31, 2012
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2 answers 2 comments
ANSWER by , August 01, 2012
start with cking pwr at sockets
ANSWER by , August 01, 2012
Check to see if yours are the type where it has to be in 'drive' for them to come on.I think I've seen some with a set-up like that.
COMMENT by , August 01, 2012
Also with park brake off.
COMMENT by , August 02, 2012
OOPS , I forgot that part yes. thanks to wetry