Check Engine Light Due to Failed Oxygen Sensor Component on Toyota Highlander
Problem overview
The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.
62 people reported this problem
21 commentsToyota Highlander vehicles with this problem
7 model years affected
Average mileage: 113,364 miles
(50,000 - 245,000)
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