The spray might work but, I could better understand that working if the "button" was stuck closed meaning the light won't come on. Once the hood/trunk is closed the button should be compressed as always and the light turn off. Unless... What I had to do on my '06 cabrio for the boot light to turn off was tape a washer right where it touches said "button" to compress it alittle more and it turned off. Probably a better way to do it out there but it worked for me and I left it like that for years..
