It is my understanding Jayco, at least on some units are using a melamine rather than a laminate. This is why I asked for a picture. If it is in fact a laminate it could be as simple as heat. Laminate is applied typically with a contact adhesive, which can be reactivated at about 220 degrees. As the top gets warm from heat from the oven / burners, the contact, being a rubber based product will loosen. If you apply heat from a heat gun, being careful not to overheat the area, you can reactivate the adhesive and apply pressure till cool the laminate will reseal. If it still does not adhere, than you can carefully lift the loose laminate, apply a good wood glue, press the laminate down and put pressure on it until the glue is set, about an hour or so. This would eliminate the issue of the contact loosing grip as it is heated. If it is a moisture issue, then other steps may be necessary, before applying the glue and pressure.
A melamine surface is just the very top sheet of a laminate (Formica etc) and not a complete sheet (sheets are typically .020 to .048 thick with dark brown backer sheets) The melamine is basically melted into the board in the process, this is a Thermally Fused Melamine, it is not as impact or abrasive resistant as regular Laminate, but it is less expensive. I assume this is why they use the melamine rather than laminate. A melamine surface is not easy to make a successful repair.
Some pictures would assist in determining what your issues are and how best to remedy them.
2011 Toyota Tundra double cab