The VIN number can often be found on the side of the driver's side door. Occasionally, it will be on the front windshield. See the above image for other common locations.
Currently, the first result is from dealersuite.com. It may be different for you, however.
This search will look for any site that does an autocheck and has 'vin' in the URL. Find a search result that has a 'vin' in the URL. In this case, you will be able to replace your VIN number with the VIN number in the URL and hit 'Enter.'
The VIN will likely be in the second part of the URL after the ?, and it may look something like this VIN=xxxxxxxxxxx. After replacing the VIN and hitting Enter, it should run the report for your vehicle!