I bought a new nissan frontier in november 2004, i was rear ended on 1-19-2005. i have had 32 needles stuck in me since that time including and idet for an internally disrupted disc. i feel that this all could have been prevented if the lumbar support was either not in the vehicle, or that it was not faulty. i have been told that they should deflate on impact (in general), however mine is hard as a rock. *nm