A method of protection against impacts between two vehicles by means of an inflatable member, in which each of the vehicles includes an external inflatable member adapted to be deployed under control of a signal commanding opening of said inflatable member, said method comprising the steps of:
- detecting from a first of said two vehicles an impending collision of said two vehicles,
- transmitting from said first of said two vehicles a first signal commanding opening of said inflatable member associated with said first vehicle;
- receiving said first signal commanding opening of said inflatable member associated with said first vehicle, by said second of said two vehicles, and
- transmitting to said second vehicle a second signal commanding opening of said inflatable member associated with said second vehicle.