Cargo Door Ajar light on. WTF?

[Mr45]

The "Cargo Door Ajar" light came on today when leaving a store, and it won't turn off. And I know damn well that it's not ajar.

Common problem? I remember a thread about it in the past, but had no luck finding it.

'01 Tahoe, FWIW...

 

[rich5368]

Make sure the door is closed properly. If it's just half latched you'll get the ajar light. Other than that all I can think of is your switch on the door may have gone south on ya.