CONTROLLER AND CONTROL METHOD

The present invention obtains a controller and a control method capable of improving safety of a lean vehicle.According to a controller (30) and a control method of the present invention, an execution section of the controller (30) executes a first operation. The first operation is an operation causing the lean vehicle (1) to execute a cruise control based on a positional relationship information that is information about a positional relationship between the lean vehicle (1) and a preceding vehicle preceding the lean vehicle (1). When a specified operation is performed by a rider of the lean vehicle (1) while the first operation is enabled by the rider, the execution section executes a second operation, the second operation is an operation that automatically stops the lean vehicle (1) regardless of the positional relationship information.