To replace one of these bulbs:

1. Reach under the rear bumper for the bulb socket.
2. Turn the bulb socket counterclockwise and pull the bulb socket out of the connector.
3. Pull the old bulb straight out from the bulb socket.
4. Push the new bulb straight in until it clicks to secure it.
5. Reach under the rear bumper to reinstall the bulb socket into the connector.
6. Turn the bulb socket clockwise to secure it to the connector.