I just removed the AstroStart remote starter from my 2007 RX350. It gave me problem of starting the car (take 2 crank sometimes - possible of error or bad system?). After remove the starter, it starts with 1 crank and no problem. You may want another brand like Avital, Viper, Python (all made by Directed) depends on your location. I'm going to have Viper 2-way remote starter install next week.