How to replace the Heated Oxygen Sensor - Bank 1 Sensor 2 on Chevrolet Traverse?

First to replace the heated Oxygen Sensor-bank 1 sensor 2 one should raise and support the vehicle. Take out the connector position assurance (CPA) retainer and disconnect the heated Oxygen Sensor (HO2S) electrical connector from the engine wiring harness electrical connector. Next, take the ho2s out of the Exhaust Pipe. When installing if it is a reinstallation of the old sensor, coat the threads with anti-seize compound gm p/n 12377953 or equivalent since a special anti-seize compound consisting of liquid graphite and glass beads are used in the ho2s threads to make future removal easy. Mount the ho2s to the Exhaust Pipe and fasten it at 42 nm (31 lb ft). Next, attach the ho2s electromotive connector 2 to the engine wire harness electromotive connector 1, followed by installation of the cpa retainer 1 before lowering the vehicle.

OEM Chevrolet Traverse Oxygen Sensor

Oxygen O2 Sensor

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8 Oxygen Sensors found

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Chevrolet Traverse Oxygen Sensor Part Number: 12667438
$41.61 MSRP: $84.51
You Save: $42.90 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 2 S; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Lower Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2023 Chevrolet Traverse | High Country, L, LS, LT, Premier, RS | 6 Cyl 3.6 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12634061
$48.88 MSRP: $87.28
You Save: $38.40 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Lower Oxygen Sensor
- Replaces: 12607333
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Chevrolet Traverse | LS, LT, LTZ | 6 Cyl 3.6 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12616125
$69.02 MSRP: $140.18
You Save: $71.16 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Chevrolet Traverse | LS, LT, LTZ | 6 Cyl 3.6 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12612430
$75.26 MSRP: $132.56
You Save: $57.30 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011 Chevrolet Traverse | LS, LT, LTZ | 6 Cyl 3.6 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12675980
$35.70 MSRP: $100.52
You Save: $64.82 (65%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Pre-Catalyst Bank 1 Se; Front Oxygen Sensor; Upper Oxygen Sensor; Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Chevrolet Traverse | RS | 4 Cyl 2.0 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12661898
$63.01 MSRP: $127.99
You Save: $64.98 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Lower Oxygen Sensor
- Replaces: 12643903
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Chevrolet Traverse | RS | 4 Cyl 2.0 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12634085
$113.76 MSRP: $320.30
You Save: $206.54 (65%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2017 Chevrolet Traverse | LS, LT, LTZ, Premier | 6 Cyl 3.6 L GAS
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Chevrolet Traverse Oxygen Sensor Part Number: 12634064
$77.31 MSRP: $157.02
You Save: $79.71 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2017 Chevrolet Traverse | LS, LT, LTZ, Premier | 6 Cyl 3.6 L GAS

Chevrolet Traverse Oxygen Sensor

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The Oxygen Sensor in Chevrolet Traverse vehicles is used in assessing the quantity of unburned oxygen in the engine exhaust to help ensure that the air-fuel mixture is as near perfect as possible, and to reduce emissions to the utmost level. It produces a voltage signal depending on the measures of this gas in order that the engine control computer can alter the fuel injector timing. This feedback mechanism allows the operation of the engine to be in the "closed-loop," resulting to effective catalytic converter. Chevrolet Traverse models can have zirconium dioxide oxygen sensors and can also have upstream and downstream sensors. The first one is an upstream sensor, which informs the engine about the state of the air-fuel mixture for immediate correction; the second one serves to control the performance of the exhaust gas converter. Some of the models can come with the so-called wideband air/fuel ratio sensors where the range of measurements is wider than in the case of narrow-band sensors. Both types are vulnerable to contamination and age-related degradation and will develop a decline in efficiency and an increase in emissions if the problem is not solved.

Chevrolet Traverse Oxygen Sensor Parts and Q&A

Oxygen Sensor
12616125
Q: How to replace the Heated Oxygen Sensor - Bank 1 Sensor 2 on Chevrolet Traverse?
A:
First to replace the heated Oxygen Sensor-bank 1 sensor 2 one should raise and support the vehicle. Take out the connector position assurance (CPA) retainer and disconnect the heated Oxygen Sensor (HO2S) electrical connector from the engine wiring harness electrical connector. Next, take the ho2s out of the Exhaust Pipe. When installing if it is a reinstallation of the old sensor, coat the threads with anti-seize compound gm p/n 12377953 or equivalent since a special anti-seize compound consisting of liquid graphite and glass beads are used in the ho2s threads to make future removal easy. Mount the ho2s to the Exhaust Pipe and fasten it at 42 nm (31 lb ft). Next, attach the ho2s electromotive connector 2 to the engine wire harness electromotive connector 1, followed by installation of the cpa retainer 1 before lowering the vehicle.