First let me disclaim I don't have a copy of your manual. Travel mode sounds like it is a condition that would prevent the jacks from deploying. Try Parking Brake on/ off to see if the travel mode lights change state. If no change look at the switch on the parking brake. Jacks coming up says that the shuttle valve is in the " flow into the reservoir position. You can remove the valve, inspect it for free movement and cleanliness, lube the o-rings and reinstall. Good luck.
Jim and Valerie, 2005 Winnie Adventurer 37B, 2014 Subaru Forester Toad, hitches, brakes, anti-sways, autopilot, gourmet food on a Social Security budget.
"Wave as you go by."