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: 81,406 (10,500–160,000)
6 model years affected: 1998, 2006, 2007, 2010, more2011, 2012
12 people reported this problem
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Viewing 1 - 5 of 5 problem details
2011 Toyota RAV4 43,600 mi,
I purchased this vehicle as a used vehicle from Toyota of Nashua. I did not take out the extended warranty as i knew it was a Toyota , and was a super reliable vehicle and it only had 19,000 miles on it and was a one owner. NOw i am running into sensor issues. I only have 43, 600 miles on it. My mechanic replaced the rear sensor as that is what the code was for. next day the lights came back on, same lights, brought it back and same code ca me up, they figured it must be a faulty sensor, so they put a new on ein today and same codes were coming up. so now they think maybe the front sensor is bad. Its gonna cost mre now alot more money. they say if thats not doesn't fix it , it coudl be the computer, the computer in the car that is. this doesn't make sense. Is there a recall on this issue?
2010 Toyota RAV4 66,000 mi,
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.
2007 Toyota RAV4 110,000 mi,
Oxygen sensors
2012 Toyota RAV4 43,560 mi,
Both oxygen sensors went, first one was replaced, an hour after the dealership fixed it light came back on and the second one had to be replaced. Cost $880. Drive the car out of the dealership and bought a Mitsubishi Outlander Sport. The RAV4 cost me so much money in the 2 years that I had it, bought it used with 19,000 miles. Will never buy another again
1998 Toyota RAV4 160,000 mi,
The check engine light is on, I took it to get checked out and the mechanic said it was an emission sensor problem. Cost of repairing was 1,800 dollars but he said it does not effect the engine, just a sensor problem. Is this possible to fix myself if I can find a new sensor?