There's no safe or legal way for a typical driver to completely disable them. Any attempt to bypass or disable the system would likely void your insurance and make the vehicle unsafe.
If you have a specific concern about the airbags in your vehicle, such as a malfunctioning sensor or a need for repair, you must take it to a qualified mechanic or dealership. They can diagnose the problem and repair it safely. Attempting DIY repairs on an airbag system is incredibly dangerous and strongly discouraged.
