rodjava Posted February 25, 2016 Hi,2 years ago I lost the original 2012 2500 NV key and had a locksmith replace it.2 years later, I found the original key but it does not start the car. I wonder if someone can explain this. Is there some type of self programming procedure I can do to make the original key work again? Thanks in advanceRod in San Francisco Quote Share this post Link to post Share on other sites
andy_george Posted February 25, 2016 Wow, that's wierd. Does it crank? Quote Share this post Link to post Share on other sites
rodjava Posted February 25, 2016 Unfortunately, is does not start the car. Quote Share this post Link to post Share on other sites
Glidedon Posted February 25, 2016 The key needs to be reprogrammed. The replacement key you had made changed the programming. The 2 keys are programmed differently. 1 andy_george reacted to this Quote Share this post Link to post Share on other sites
rodjava Posted February 27, 2016 The key needs to be reprogrammed. The replacement key you had made changed the programming. The 2 keys are programmed differently.Thanks, perhaps when the replacement key was made, it changed the original code.I will have the found key reprogrammed. Quote Share this post Link to post Share on other sites
Block Posted March 22, 2016 Anytime a key is programmed it deletes all keys stored, then you must add all keys at the same time. Quote Share this post Link to post Share on other sites
Mark Rogers Posted January 15, 2017 Is there a DIY procedure for key programming, or does it require special equipment? Quote Share this post Link to post Share on other sites
