Rotated tires, now alerted to tire pressure low

Honda Accord 2020

• I had my tires rotated at 5k miles at dealer.
• When I brought vehicle home, it alerted tire pressure.
• I manually checked tire pressure, all good.
• I reset, I believe, according to manual, tire monitoring system. I do not believe this vehicle has sensors.

Still alerts to low tire pressure.

What else could set off low tire pressure after tire rotation?