i have a check engine light on the code is..P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED what can i do to fix it? Can i drive it like this or is it dangerous while i get it fixed the dealer where i have warrenty and bought it is 3 hours away from me.

 

Most times, at least with lower mile trucks.... It is your gas cap.

http://highlanderclub.ru/files/manual/04/21j6674h/cip0455.pdf

 

its one of your vacuum lines, had same problem, replaced all vacuum lines, reset, code went away...

 

I'm in a shop getting a smoke test right now
Find out pretty quick here if it's the EVAP box below the passenger side box or if it's a Vac line
And a piece of helpful info, stay away from the stealership and go to a reliable mechanic
I now have 2 in my area that aren't into writing parts higher and decent shop rates
Took me a few months but I found em