DTRL (daytime runnig light)

[salman_83]

How to turn on the DTRL in my LT? any idea?

 

[johnebgoode]

The DRL's dont go on till ya put it in drive. I noticed that on mine. If they still arent going on check relay. There should be a labeled relay for the DRL. Probably located under hood. Check manual for relays and fuse locations

 

[JKmotorsports]

Just throwing this in, but GM has a RPO option for DRL delete. Is it available on the nbs trucks?
DRLs should come with the parking brake off and the vehicle in drive.

 

[Getwired]

Also, for what it's worth, fuses 30 and 32 (at least on Yukon Denali) control the DRLs. You might want to check and see if they're installed at all per JK's reply above...