Car Problem Reports

Lexus RX300 Check Engine Light Due to Failed O2 Sensor

Lexus RX300 Problem
45 Reports
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Model Years Affected: 1999, 2000, 2001, 2002, 2003

Average Mileage: 116,447 mi (12,637 mi - 239,433 mi)


The Check Engine Light may come on because a component of the oxygen sensor stops working. Replacement of the failed sensor should correct this concern.

  • , , 100,109 mi

    The "Check Engine" light as well as the "Track Off" and "VSC" lights came on. The Lexus dealership told me the cause was a failed O2 sensor and recommended I replace both front sensors even though only one was faulty. Total $850.00

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  • ,

    Engine light came on due to melfunction of Oxygen intake sensor. It also triggured VSC & Track Off lights.

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  • , , 64,000 mi

    Check engine light on for bank 2 sensor 1 air fuel sensor.

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  • , , 149,000 mi

    code po171

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  • , , 58,000 mi

    Trac and check engine light on

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  • , , 140,000 mi

    Check engine, Trac, and vsc lights all on. Bank 2, sensor 1 O2 sensor was bad.
    Had confirmed by 2 shops and an Advanced Auto part store. Had it replaced at local shop in Cape Coral fl for $259total (which included the $170 part).
    ps-had the Bank 1,sensor 1 replaced 2 yrs ago at dealership for $350.

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  • , , 147,000 mi

    Intermittent check engine light coming on, going off. Mechanic tells me there is a failed oxygen sensor, and will be $417 to fix. I have authorized the repair. Car did not seem to be having problems whether the check engine light was on or off, but I wanted to get it fixed since the car has been stellar for these 15 years of ownership.

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  • , , 17,500 mi

    got this checked out because of the light, and they told me it was a bad sensor that has no effect on how the car runs, but was going to be several hundred dollars to replace, so I didn't get it fixed, but the only problem is that the constant check engine light could be masking another problem.

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  •  Rookie

    Car now in for 3rd time in 2 months. 1-replace gas cap seal,2-replaced gas cap seal and some kind of "accumulator"
    3- calling right now to see what they have found in the last 4 days

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  • , , 125,300 mi

    Engine Light on, then VTM-4 light on after another mile of driving. Replaced front 02 sensor and fixed.

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