Check for ease of movement of all of the vent pods in the dash. They should move easily. Turn the knob to see if they open and close properly.

Move the combination switch up and down, for right and left turn signals respectively, and then push it away from you for high-beams. It should firmly move in to each position and stay there without any slop. Then pull it towards you for high-beam flash; it should spring back to the center position when you let it go.

Press the center pad on the steering wheel to test the horn.