One problem related to car accelerates on its own has been reported for the 2004 Lexus RX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Lexus RX based on all problems reported for the 2004 RX.
Rapid acceleration as I released the gas pedal as I parked my car - took out a 6 foot bush. I was interviewed on 10news san diego concerning this incident I took the auto to my Lexus dealer/a diagnostic and a test drive were done and everything checked out negative. The dealer told me they could not do anything to help me since the diagnostics were negative.