An arrangement (10) for assisting a passenger (22) to obtain a correct seating position in a seat (21) of a vehicle is provided. The vehicle comprising at least the seat (21) and an area (20) which may be seen by the passenger (22) when seated in the seat (21). The arrangement (10) comprising a position indicator (11) arranged to be provided on the area (20). The position indicator (11) displaying at least a first image (13) when seen in at least a first corresponding optic angle interval (α), and a second image (14) when seen in at least a second corresponding optic angle interval (β).