Yes a booster seat behind the driver side... I don't think the kluger is like some other vehicles where the rear seat has a control switch that indicates if some-one /something is on the seat and triggers a indication. The multi control on the Kluger (as per image attached) has three buttons, top is for fan speed, middle just turns on/off temperature control for rear and the bottom is for rear temperature control Cause in the Kluger one can isolate heating/cooling for whole vehicle, front only or back only. Hence the purpose of the middle section on the multi control.