When your GMC key fob stops working, it’s normal to feel a bit stumped. Common troubleshooting steps can often pinpoint the root cause. Start by testing the key fob in close proximity to your vehicle; if it works up close but not from afar, it’s likely a battery or interference issue., In this guide, we’re going to cover everything you need to about this issue and help you restore your remote start feature., Learn how to troubleshoot your keyless open feature, what can cause a lockout of your vehicle, and ways to avoid it., But fear not, fellow Sierra driver. This isn’t necessarily a sign of impending doom. More often than not, the issue is easily diagnosed and remedied. Let’s embark on a journey to understand why your GMC Sierra key fob might have fallen silent and, more importantly, how to restore its voice., A video tutorial on how to unlock, open and start a 2019 - 2022 GMC Sierra that has a dead key battery or a remote key fob that isn't working., .