Toyota Highlander Oxygen Sensor Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(8)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(8)

Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a Toyota Highlander Oxygen Sensor Replacement is $309 with $169 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Toyota HighlanderV6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1245.32Shop/Dealer Price$1507.44 - $2282.46
2005 Toyota HighlanderV6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1153.83Shop/Dealer Price$1393.75 - $2107.76
2011 Toyota HighlanderL4-2.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$493.61Shop/Dealer Price$582.37 - $844.48
2002 Toyota HighlanderV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1375.47Shop/Dealer Price$1670.84 - $2551.10
2005 Toyota HighlanderL4-2.4LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$711.35Shop/Dealer Price$842.75 - $1226.47
2015 Toyota HighlanderL4-2.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$691.95Shop/Dealer Price$830.44 - $1241.41
2003 Toyota HighlanderL4-2.4LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$542.31Shop/Dealer Price$629.41 - $884.82
2012 Toyota HighlanderV6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$1174.31Shop/Dealer Price$1433.25 - $2205.88
Show example Toyota Highlander Oxygen Sensor Replacement prices

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

When replacing the oxygen sensor remember:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is replacing the oxygen sensor?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Toyota mechanics

Real customer reviews from Toyota owners like you.

Excellent Rating

(8)

Rating Summary
7
0
0
1
0
7
0
0
1
0

Excellent Rating

(8)

Rating Summary
7
0
0
1
0
7
0
0
1
0
Number of Toyota Highlander Oxygen Sensor Replacement services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1700+
experts on our platform

Recent articles & questions

P2078 OBD-II Trouble Code: Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High
P2078 P2078 code definition Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High What the P2078 code means This code will set if the Engine Control Module (ECM) (https://www.yourmechanic.com/parts/engine-control-module), or Powertrain Control Module (PCM), detects a problem with the position...
How Long Does a Crankshaft Position Sensor Last?
The The crankshaft position sensor monitors the rotational speed and position of the crankshaft in the engine. It reports this information to the engine management system to control the ignition system timing. The crankshaft position sensor is used with the...
Symptoms of a Bad or Failing Speedometer Cable
Common signs include the speedometer needle wavering or not moving, squealing noises behind the dashboard, and the Check Engine Light coming on.

Crankshaft sensor going out

That is a pretty common failure on the 4.0 engine. Random stalling, long crank, rough idle, or the engine failing to start are all symptoms. Usually a code is stored, but this is not always the case. If you would...

Check engine light P0017ECT - 1998 Volvo S90

Hi there. There are a few different things that can cause this. Most of the time though, this is caused by an issue with the TCM or a power issue to the TCM. I usually start by testing the ignition...

The oil light keeps coming on when we brake or park.

This may be a sign of a faulty or failing oil pressure sending unit switch (https://www.yourmechanic.com/services/oil-pressure-sensor-replacement). This is a unit that monitors the oil pressure inside the engine block and relays this information to the computer. When this is faulty...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com