Good morning guys. I have a 2019 Chevrolet Silverado LT Texas edition model. Crew cab. I recently had this issue in which I used to be able to get close to the truck and it will unlock on its own. Now that feature magically disappeared. I have to unlock my truck manually pressing the unlock on the key fob. How do I activate this passive unlock lock feature again? Thanks!

 

may be an proximity antenna sensor issue. check for codes. these won't be powertrain codes so it won't turn on the cel. you need a scanner that can access body codes.