trunk lock won't turn w/ key - 2010 Yaris Sedan

[TYaris2010]

Originally Posted by 06YarisRS

My '06 and '08 (both older when purchased) had lock cylinders that would not turn due to contamination. It is not so big a job to take the lock mechanism out and clean it. There is a snap ring that is removed and the guts of the cyinder slides out. The one on my '08 was seized so well that I had to put the body of the cylinder in a vice and wiggle the shaft back and forth little by little until it was freed. I then took the guts out, flushed it a number of times with contact cleaner, until it ran clear. Then I lubricated it well, reassembled it and it's worked fine since. Every once in a while, I spray a bit of electronics cleaner in followed by a lubricant.

Another member posted step-by-step instructions with pics here on the site.

thanks, sounds like a potential plan. I was hoping to just spray something through the entry hole so I didn't have to dissemble it or, worst case, replace w/ a new cylinder with a different key. This car isn't that old, I'm guessing it froze to to not being used.

not sure where the step by step would be located on the site....