A system for avoiding pinching in vehicle doors includes capacitive proximity sensors for being mounted at each door along closing surfaces. The system also includes an accelerometer for being arranged in each door, a stopper bar, and a release mechanism for the stopper bar. The capacitive proximity sensors, the accelerometer, and the release mechanism are connected to a control unit arranged such that the stopper bar is moved to a blocking position when the capacitive proximity sensor for the same door senses an object and the door has stopped accelerating.