The 2019 Honda Odyssey’s automatic doors may not be opening due to an electrical issue or a clogged sensor.
To troubleshoot, try disconnecting and reconnecting your van’s battery, cleaning the door sensor, and/or performing a hard vehicle reset via your vehicle’s dashboard.
If none of these solutions work, there could be other issues at play. For example, in freezing temperatures, water gets into the door handle cables that power the sliding doors and turns to ice, preventing the door from latching (or unlatching) properly. There could also be a broken cable that needs to be replaced. Or, sometimes the best solution is the most basic one. Perhaps you simply left the door switch in the “off” position!