might help if you tell us what you have. but if its 2015 the combination lock may be aftermarket. Should be something for that device on the web so you can reprogram. what brand keyless entry is it? Should be some name somewhere.
Not the cheapest solution, but you can replace the whole lock at www.rvlock.com with a new keyless lock.
__________________
Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips