What is the toyota yaris spark plug change interval?

It's typically suggested that You should change out the Spark Plugs in Your Toyota Yaris between 30,000 and 60,000 miles. That's a pretty wide estimate so if You want to be on the safe side try to get it done closer to 30,000 than 60,000. Takeng it to Your dealer and having a spark plug replaced will typically cost between $80 and $120 for the parts and labor so it's not a very expensive bit of maintenance but it is important. You want to be sure You're spark plugs are working properly and You don't get stuck somewhere when Your engine is failing to start. -