chime or alarm? 2 dings

[oldfarmer]

Ok, so driving along no problems, I get 2 dings from the dash. no lights, gauges are all normal, seat belt is on, everything looks good. it looks like it happens whenever it feels like it. in a 20 minute drive it may happen once or 5 times. checked for codes and nothing, all clear. any ideas?

 

2003 GMC Sierra 1500 HD

 

Thanks

[nfisherman]

Do you have anything sitting in the passenger seat? That happens to me sometimes when my dog or some books are in the passenger seat and they're close to the weight required the trigger the seat belt chime.

[oldfarmer]

it has been any where from nothing to another person. (good idea though) but I did flip, push, toggle, any switch to do with the lights and it hasn't gone off since.