A vehicle control system for controlling a vehicle, the system comprising: a plurality of first cameras disposed in the vehicle so as to surround the vehicle, the plurality of first cameras include a first front camera that images an area in front of the vehicle, a first diagonally backward right camera that images an area diagonally backward right of the vehicle, and a first diagonally backward left camera that images an area diagonally backward left of the vehicle; a plurality of second cameras disposed in the vehicle so as to surround the vehicle, the plurality of second cameras include a second front camera that images an area in front of the vehicle, a second diagonally backward right camera that images an area diagonally backward right of the vehicle, and a second diagonally backward left camera that images an area diagonally backward left of the vehicle; a plurality of first radars provided in the vehicle so as to surround the vehicle, a plurality of second radars provided in the vehicle so as to surround the vehicle, and a control unit that includes: a first recognition processing IC unit that performs recognition processing for recognizing an external environment of the vehicle based on an output from the plurality of first cameras and an output from the plurality of first radars; and a second recognition processing IC unit that performs the recognition processing based on the output of the plurality of second cameras and an output from the plurality of second radars, wherein a combination of monitoring areas of the plurality of first cameras and the plurality of first radars surrounds an entire circumference of the vehicle, a combination of monitoring areas of the plurality of second cameras and the plurality of second radars surrounds the entire circumference of the vehicle, the control unit is adapted to perform a first operation of outputting a control signal for cruise control of the vehicle based on both of a result of the recognition processing by the first recognition processing IC unit and a result of the recognition processing by the second recognition processing IC unit, a second operation of outputting the control signal based on the result of the recognition processing by the first recognition processing IC unit, and a the third operation of outputting the control signal based on the result of the recognition processing by the second recognition processing IC unit. a plurality of first cameras disposed in the vehicle so as to surround the vehicle, the plurality of first cameras include a first front camera that images an area in front of the vehicle, a first diagonally backward right camera that images an area diagonally backward right of the vehicle, and a first diagonally backward left camera that images an area diagonally backward left of the vehicle; a plurality of second cameras disposed in the vehicle so as to surround the vehicle, the plurality of second cameras include a second front camera that images an area in front of the vehicle, a second diagonally backward right camera that images an area diagonally backward right of the vehicle, and a second diagonally backward left camera that images an area diagonally backward left of the vehicle; a plurality of first radars provided in the vehicle so as to surround the vehicle, a plurality of second radars provided in the vehicle so as to surround the vehicle, and a control unit that includes: a first recognition processing IC unit that performs recognition processing for recognizing an external environment of the vehicle based on an output from the plurality of first cameras and an output from the plurality of first radars; and a second recognition processing IC unit that performs the recognition processing based on the output of the plurality of second cameras and an output from the plurality of second radars, wherein a combination of monitoring areas of the plurality of first cameras and the plurality of first radars surrounds an entire circumference of the vehicle, a combination of monitoring areas of the plurality of second cameras and the plurality of second radars surrounds the entire circumference of the vehicle, the control unit is adapted to perform a first operation of outputting a control signal for cruise control of the vehicle based on both of a result of the recognition processing by the first recognition processing IC unit and a result of the recognition processing by the second recognition processing IC unit, a second operation of outputting the control signal based on the result of the recognition processing by the first recognition processing IC unit, and a the third operation of outputting the control signal based on the result of the recognition processing by the second recognition processing IC unit.