emergency unlock for shifter

on the automatic trucks theres a little button that u push to unlock the shifter, i had to use this the other day when i blew all my fuses the truck wouldnt shift.... has anyone else had this happen before? when they couldnt shift and had to use the button?

 

Ye, I used it when I was going up on the flat bed. Fuses were messed up also.

 

does the shifter only lock when the fuses get messed up?

 

I think it unlocks in accessory mode, if you can't go in acc it won't unlock. eg : no keys, dead battery, blown fuses, etc.
It's either acc mode or when the engine starts, I don't quite remember.

 

where's the button?

 

^^It's under the plastic tab at the top of the shifter display. Just read your sig, it's only for autos so you don't have one.