That really depends on manufacturer. But in general it is more secure to use 2FA (Wireless link + mechanical token) than using 1FA (Wireless link and a button).

That really depends on manufacturer. But in general it is more secure to use 2FA (Wireless link + mechanical token) than using 1FA (Wireless link and a button). Thief needs to jump through more obstacles, increasing the change of his failure. However even mechanical token can be generalized as this video shows: https://www.youtube.com/watch?v=9NtDH-8z95M https://www.youtube.com/watch?v=9NtDH-8z95M So I think that in the end it probably does not matter. When somebody wants to steal your car, you have probably no chance to prevent it.