Welcome to the Jayco Owners Forum, congratulation's on the Pinnacle.
The bulbs over the sink in the hanging lamps and similar to Automotive tail light bulbs, they have two pins, push up and twist out.
In a year and a half we have had to change both of them twice, they are not real easy to get out.
Robert & Bale the "Traveling Dog"
2012 GMC 3500HD DRW