I think there is another thread or two that you can find with a search (above). It also depends upon which make you have. One of those posts has instructions I posted from MDH (I think is the company). The other alternative is call Jayco with your VIN and they will send you the manual. that’s how I got it. I’m not where I can scan and send it.
2018 Jayco Greyhawk 29MVP
2019 Jeep Sahara Unlimited
2011 Cyclone 3010 Toy Hauler- Sold
2014 Chevy Silverado Duramax LML -Sold