The first place to look for your vehicle's vin number is by standing outside of the car, looking at the bottom of the windshield on the driver's side. Through the glass, you should see a small metal plate on the dashboard that has the VIN number and possibly a barcode.
If you don't find the VIN there (or you only see a barcode), the second place to look is by opening the driver's side door and looking at door post. It is often near the sticker that tells you about tire pressure and weight specifications.
The third place to look is on the driver's side door itself. Sometimes the VIN number is on the door, near where the latch is.
Finally, if you can't find the VIN on your vehicle, you can always check either your insurance cards or your vehicle title.
Need to learn more? Watch this video.