Vehicle had no running lights. checked bulbs and fuses ok .van went to chevy dealer was charged 100.00 checkout fee. the dealer found no ground from bcm . they told me it would be 752 55 to this point for them to run an auxiliary circuit to fix or it would cost 1200.00 -1500.00 to find the problem and repair. i went with the cheaper option. i do believe no running lights on a vehicle would qualify as a safety concern.