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How do you replace bulbs in the steering wheel of a 2013 Ford Fusion?

There aren't actually bulbs in the steering wheel of a 2013 Ford Fusion (or most modern cars) for the horn or other controls. The lighting is provided by LEDs integrated into the circuit board of the steering wheel controls. These are not user-replaceable.

If you have a problem with the lighting in your steering wheel controls (horn, cruise control, audio controls, etc.), you'll need to:

1. Diagnose the problem: Is it completely dark, intermittently flashing, or dimly lit? This can help determine the issue. A completely dead light suggests a blown fuse, a wiring problem, or a faulty control module. Flickering might indicate a loose connection.

2. Check fuses: Consult your owner's manual to locate the fuse(s) related to the steering wheel controls and check them for continuity. Replace any blown fuses.

3. Take it to a professional: If the problem persists after checking the fuses, the issue likely lies within the steering wheel control module itself. This is a complex component that requires specialized tools and knowledge to diagnose and repair (or replace). Taking your Fusion to a Ford dealership or a qualified auto electrician is the best option. Attempting repairs yourself could potentially damage the steering wheel or airbag system, which is dangerous.