Car Problem Reports

Lexus RX300 Check Engine Light Due to Failed O2 Sensor

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

Average Mileage: 99,926 mi (12,637 mi - 180,000 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.

  • Visitor, , 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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  • Visitor, , 149,000 mi

    code po171

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  • Visitor, , 64,000 mi

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

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  • Visitor,

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

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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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  • Visitor, , 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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  • Visitor, , 58,000 mi

    Trac and check engine light on

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  • Visitor, , 118,200 mi

    02 sensors bad. Repair shop said-quoted $587 to replace spark plugs and 02 sensors

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  • Visitor, , 91,000 mi

    Engine light came on, replaced two sensors for @$1000.

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  • Visitor, , 130,000 mi

    check engine light is on

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