I had my SC400 for about a year now with just the vallet keys, is there a way of opening the trunk without the master key? trunk was locked inside. Thanks.

 

I think I have the valet key too.. and I am able to just unlock it from the inside or the keyhole. Worst case you can crawl under your steering wheel and jump the 2 cables that would normally be triggered by the button.

 

You can order a new cut master key through our club Sewell Lexus. They just need to know your VIN and proof of ownership.

Until then like TLDriver said, just open up the lower panel and short the wire to the trunk switch.

 

if you havea keyless remote hold the unlock key for like 6 seconds my car beeps twice saying its unlocked then if you continue to hold it the car beeps once more and pops the trunk