The combine harvester does not have an on/off switch. Insert the batteries, switch on the remote control and get started. This is how it works for me.

The combine harvester does have an on/off switch. It is hidden in one of the wheel arches, very difficult to find if you don't know where it is. Just had the same problem with my son and came across the answer in one of the Amazon Q&As via Google research... good luck...

Got the same trouble - did you manage to solve it? If so, how? My preschooler is literally crying on the floor as he kept waiting half a year for this toy :-(