Where are the spark plugs on a 2011 jeep compass?

The spark plugs on a 2011 Jeep Compass are located on the top of the engine, under a plastic engine cover. To access them, you'll need to remove the engine cover. They are generally arranged in a somewhat linear fashion across the top of the engine, but their exact position relative to any specific engine components will vary slightly depending on the engine (2.0L or 2.4L). A repair manual specific to your Compass's engine will give the most precise location and instructions.