Won’t start

Hi, I'm one of the auto experts on RepairPal's Car Genius team! Thanks for the details, that actually helps narrow things down a bit! It sounds like you're getting some electrical power since the radio and windows are working, but the fact that the truck won't crank, click, or respond to the locks and cab lights is definitely telling. On your Silverado, this kind of partial electrical behavior often points to a few possible culprits. A loose, corroded, or poorly connected battery cable is one of the most common causes, even after a battery test, if the connections aren't clean and tight you can get exactly this kind of inconsistent behavior. A faulty ground connection is another strong possibility and can cause all kinds of strange electrical symptoms. There are also several other things that could cause the issues you are having, from a blown fuse, wiring issues, or ignition switch to an internally failing module. Because electrical issues like this can be tricky to trace without the right diagnostic tools, and given that there could be a few things going on at once, we'd recommend having a qualified shop take a look. What might seem like a simple fix can sometimes involve some deeper digging to get to the root cause. If you need any further advice or would like help finding a trusted RepairPal shop in your area or even getting an appointment booked, please feel free to call us at 877-913-1554