Check Engine Light Due to Failed Oxygen Sensor on Toyota RAV4

One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.

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Average mileage: 91,250 (24,000–150,000)
2 model years affected: 1998, 2010
6 people reported this problem
1 person shared problem details
2010 Toyota RAV466,000
initially told "sensor" problem for $300, now it is brake actuator assembly problem at $3000. told by Toyota customer service this is "normal wear and tear" for brake system… I don't think so. Still in process of dealing with this as per internet it is a recurring problem with Toyota and Rav 4 some 2012-2014. Mine is 2010. they also did recalls for some Lexus and Tacoma models.
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