Where is the 2010 ford expedition air suspension switch located?

The 2010 Ford Expedition does not have an air suspension switch, instead it uses a relay to control the power to the compressor for the suspension. The relay for this is located in the main fuse panel under the hood near the battery. If Your air suspension is having problems then the first thing to check is this relay. I would suggest removing it for at least 5 minutes to allow the system to reset. The next thing You should inspect is the actual compressor and the lines to the shocks from it. Those can be damaged and worn out over time and may need to be replaced. Usually the problems with the air suspension will lead to the vehicle sitting lower than it should.