Where is the wheel lock key located in a 2018 Highlander?

The wheel lock key in a 2018 Toyota Highlander can be stored in many different places. The most likely places that You will find it are in the tool kit in the back of the vehicle, in the glove compartment, or in the center console. The wheel lock key looks like a socket, and it has a shape on the inside of it that will work with the wheel lock lug nuts that are on Your SUV. If You cannot find it anywhere in Your vehicle I recommend that You contact a Toyota dealer. Toyota can order You a new wheel lock key if You have the serial number that is on the lock on the lug. Toyota dealerships also have a master key they can use to remove Your wheel locks and replace them with new ones.