To reset your service light you have to reach behind the instrument cluster and move the reset lever. Kitty speaks of a button on the front, but he is thinking about the later models which have air bags.

Your bulb out sensor is sensitive. You can tell which of the three categories is causing the warning lamp by when it occurs. If on parking light position, it is the tail lights. If on headlights position - one of the headlights. If when you step on the brakes - brake lights. Give the bulbs a twist in their sockets, the sockets a twist in their positions in the lamp fixture, and exercise the wiring harness connectors to clear any invisible corrosion the warning system is reporting. You might not notice a difference in lamp intensity, but this circuit will be better than your eyes are. Some say replace the bulbs in matched pairs. All these things serve to clean dirty connections, which is in most cases the reason for your spurious warning lamp.
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Art Benstein near Baltimore

Two peanuts walk into a bar, and one was a salted.