A security setting method for a camera system of a vehicle comprising the steps of • creating a camera system with at least a first camera module with a first identification number, a second camera module with a second identification number and an electronic control unit; • creating at least one first camera module Hash value for the first identification number, at least one second camera module Hash value based on the second identification number and/or at least one camera pod assembly Hash value based on the first and second identification numbers; and • storing at least one of the Hash values comprising • storing the at least one first Hash value in the second camera module and the at least one second Hash value in the first camera module and/or • storing the at least one camera pod assembly Hash value in the camera pod assembly and/or • storing the at least one first Hash value and the at least one second Hash value as a pair and/or • storing the at least one first Hash value and the at least one second Hash value in the ECU as a ECU Hash value, wherein at least one camera module (12, 14) or a camera pod assembly is replaced by the following steps: • replacing at least one camera module (12, 14) or camera pod assembly, • creating a new Hash value of the replacement camera module or creating a new Hash value of the replacement camera pod assembly, • creating new calibration data hash value of the replacement camera module or the replacement camera pod assembly, and • replacing the old calibration data and Hash values with storing the new Hash values (H512, H412) of the replacement camera module or the replacement camera pod assembly. • creating a camera system with at least a first camera module with a first identification number, a second camera module with a second identification number and an electronic control unit; • creating at least one first camera module Hash value for the first identification number, at least one second camera module Hash value based on the second identification number and/or at least one camera pod assembly Hash value based on the first and second identification numbers; and • storing at least one of the Hash values comprising • storing the at least one first Hash value in the second camera module and the at least one second Hash value in the first camera module and/or • storing the at least one camera pod assembly Hash value in the camera pod assembly and/or • storing the at least one first Hash value and the at least one second Hash value as a pair and/or • storing the at least one first Hash value and the at least one second Hash value in the ECU as a ECU Hash value, • storing the at least one first Hash value in the second camera module and the at least one second Hash value in the first camera module and/or • storing the at least one camera pod assembly Hash value in the camera pod assembly and/or • storing the at least one first Hash value and the at least one second Hash value as a pair and/or • storing the at least one first Hash value and the at least one second Hash value in the ECU as a ECU Hash value, • replacing at least one camera module (12, 14) or camera pod assembly, • creating a new Hash value of the replacement camera module or creating a new Hash value of the replacement camera pod assembly, • creating new calibration data hash value of the replacement camera module or the replacement camera pod assembly, and • replacing the old calibration data and Hash values with storing the new Hash values (H512, H412) of the replacement camera module or the replacement camera pod assembly.