If your radio doesn't work after a battery change, it likely requires the security code. This is a common anti-theft measure. You'll need to locate your radio's security code. This code is usually found:
* In your owner's manual: Check the glove compartment or the literature packet that came with your truck.
* On a sticker in the vehicle: Sometimes the sticker is located on the radio itself (though not always accessible) or on a panel inside the vehicle.
* Through your Chevy dealer: They can look up the code using your VIN.
Once you have the code, the process for entering it is generally displayed on your radio screen. It's usually a sequence of button presses. The exact method will depend on your radio's model (e.g., it might require holding down buttons, pressing a certain sequence quickly, etc.). Consult your owner's manual for specific instructions if you're having trouble finding them on the screen.
If you've already tried entering a code multiple times incorrectly, you may have temporarily locked the radio. Allow a period of time (sometimes 30 minutes, sometimes longer) before attempting the code entry again.
If you still have trouble after locating the code and attempting to enter it, your problem might be more than just a security code issue and could indicate a deeper radio malfunction. In this case, you may need to visit a Chevrolet dealership or a qualified car audio technician.
