No, a 6-lug Chevy wheel will almost certainly not fit a Toyota. While both might have 6 lug nuts, the
bolt pattern (the distance between the lug holes) and the
wheel hub size are almost guaranteed to be different. These are crucial for proper fitment and safety. Using the wrong wheels is extremely dangerous.
Even if the lug nut count matches, you need to verify the bolt pattern (e.g., 5x114.3mm, 6x139.7mm) and the center bore diameter of both the Chevy wheels and the Toyota's hub to ensure compatibility. These specifications are usually found on the wheel itself or in your vehicle's owner's manual.