Originally Posted by snuffy
So the problem is that the initiate key/car transaction is a simple frequency then ? Hence just the correct frequency will get the key to respond and that can come from any source.
Not quite, the key has a rolling code, so the code only works once.
Relay theft works because it replicates whatever the key is sending out at the time. No matter how well encrypted the signal is, the booster doesn't need to decode it, but simply boost the signal.
Regarding what car manufacturers are doing to fix the problem, there are different solutions, like you mentioned motion sensors on keys. However, there are still ways around all of these. For some strange reason, pressing the damn button doesn't seem to have been considered?