Tail light replacement for 2019 GMC sierra 1500 SLT

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Replacing taillights used to be a simple thing! But in the world of LED and all that fanciness, who the heck knows? We do! That's who! The driver's side tail light on a Sierra should typically be a plug-and-play process. There shouldn't be a need for reprogramming unless the replacement tail light assembly includes additional features like LED lighting or advanced functionalities. However, it's always a good idea to consult the vehicle's manual or contact a dealership to confirm compatibility and any specific instructions for the replacement part. If you have any other questions feel free to call us at 877-913-1554! We'll be happy to find you a certified RepairPal shop in your area!