i have a 95 sc400, recently the only way i can describe it is, i have a red light inside the car not the security light, & when it is blinking it means the car will turn over but not start, so i have to push this button down by my left knee until it stops blinking then the car will start. well now it takes at least 5 min to get the car started., & it seems like the battery is being drained, (sounds weak when starting) and now when i get it started the engine surges & even the trunk will pop open?? i don't know where to start, please somebody has to know something about this electrical problem i'm having, i really miss driving my Lexy

 

Sounds like some kind of kill switch or aftermarket alarm to me. That button you're talking about is usually the valet mode for car alarms

 

Turn the key forward to the on position, push the button once then start the vehicle do this all within 15 seconds should put the vehicle in Valet. Hope this helps