Courtesy Light Problem

[mark357g]

I have a 2017 GMC Sierra SLT. The courtesy lights will not come on when opening passenger door. It works with the other 3 doors.

Does anyone have any idea what could be the problem ? 

[NCPGMC]

29 minutes ago, mark357g said:

I have a 2017 GMC Sierra SLT. The courtesy lights will not come on when opening passenger door. It works with the other 3 doors.

Does anyone have any idea what could be the problem ? 

Did you check the door switch? I'd start there and see if it is broken.

[Donstar]

1 hour ago, mark357g said:

I have a 2017 GMC Sierra SLT. The courtesy lights will not come on when opening passenger door. It works with the other 3 doors.

Does anyone have any idea what could be the problem ? 

Welcome to this forum!  NCPGMC provided the most logical starting point to diagnose the problem.  I would assume this step would have preceded posting online(?)  My first thought was related to moisture and freezing but your ID doesn't mention your location.   The more information you provide, the more helpful the response.  Good luck!

[mark357g]

2 hours ago, NCPGMC said:

Did you check the door switch? I'd start there and see if it is broken.

Where is the switch located? There is nothing there that could be a switch.

[mark357g]

1 hour ago, Donstar said:

Welcome to this forum!  NCPGMC provided the most logical starting point to diagnose the problem.  I would assume this step would have preceded posting online(?)  My first thought was related to moisture and freezing but your ID doesn't mention your location.   The more information you provide, the more helpful the response.  Good luck!

I live in south Louisiana so freezing is not an issue . If I look on door jamb there is nothing that can be considered a switch 

[NCPGMC]

33 minutes ago, mark357g said:

Where is the switch located? There is nothing there that could be a switch.

The switch is in the door latch, I think they started putting them there on these trucks since about 2000.  

[mark357g]

Ok thanks