There was an industry change from Trimark (typically roundish key head) to FIC then to Global (both square heads) over the years. Most likely your coach will have either FIC or Global.
Your entry door key will either say FIC or have Global lock molded into the plastic. Good chance the compartment locks are the same brand.
The RV biz is notorious for using the same/ common (generic) locks for the compartments so your dealer should have some of the common (generic) compartment keys lying around as every coach comes from the factory with lots of extra compartment keys.
If not, order either FIC or Global keys from the sites linked in earlier posts.