chirp/squeak noise just off idle when cold

[WeeYari]

Originally Posted by tadc

And that's what makes me reluctant to tighten it. Also - I'm not too familiar with the Yaris's layout, but isn't this a serp belt with a spring tensioner? If that's the case, there isn't really anything to "tighten", right? The tensioner applies tension and thats that?

Does anybody know off the top of their head what's the service interval for the belt?

Thanks.

There is no tensioner. The alternator must be moved to adjust tension.

I just checked my recommended maintenance schedule. Through to 232,000 km, it does not show any maintenance items regarding this belt. The only mention is an inspection and adjust tension if needed during every other visit.