AutoCodes – GMC – P0153 2015 GMC Sierra

P0153 2015 GMC Sierra Code - HO2S Slow Response Bank 2 Sensor 1

Quick Answer

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0153 2015 GMC Sierra indicates HO2S Slow Response Bank 2 Sensor 1.
Common causes: Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 250

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 28, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0153 2015 GMC Sierra Description

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the Engine Control Module (ECM) operates in an Open Loop mode, ignoring the HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0 - 1, 000 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, Closed Loop is entered. The ECM uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1, 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value for greater than 60s.

OBDII Code P0153 2015 GMC Sierra - HO2S Slow Response Bank 2 Sensor 1 - AutoCodes.com — P0153 2015 GMC Sierra Code - HO2S Slow Response Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0153 2015 GMC Sierra?

Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted
Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
Low or high fuel system pressure
Fuel contamination
Faulty fuel injectors
Exhaust gas leaks
Engine vacuum leaks

How to Fix the DTC P0153 2015 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Replacing the Front Heated Oxygen Sensors (HO2S) usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0153 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0153 2015 GMC Sierra Code

What does the OBDII code P0153 mean for a 2015 GMC Sierra?

P0153 indicates that the oxygen sensor (Bank 2, Sensor 1) is responding too slowly to changes in the air-fuel mixture, which can affect engine performance and emissions.

What are the symptoms of code P0153 in a 2015 GMC Sierra?

Common symptoms include reduced fuel efficiency, increased emissions, possible rough idling, and the illumination of the check engine light.

What causes the P0153 code to appear in a 2015 GMC Sierra?

Possible causes include a failing oxygen sensor, exhaust leaks, wiring or connector issues, or a dirty air filter affecting the air-fuel mixture.

How can I diagnose the P0153 code on my 2015 GMC Sierra?

Start by inspecting the wiring and connectors for damage, check for exhaust leaks, and use a scan tool to monitor the oxygen sensor's response time.

How do I fix the P0153 code on a 2015 GMC Sierra?

Repairs may involve replacing the oxygen sensor (Bank 2, Sensor 1), fixing wiring issues, addressing exhaust leaks, or cleaning/replacing the air filter.

Can driving with code P0153 damage my 2015 GMC Sierra?

Driving with this code for extended periods can increase emissions and may lead to further engine performance issues, but immediate severe damage is unlikely.

How much does it cost to repair the P0153 code on a 2015 GMC Sierra?

Repair costs can range from $100 to $300, depending on whether you need to replace the oxygen sensor, fix wiring, or address exhaust leaks.

What is Bank 2, Sensor 1 in a 2015 GMC Sierra?

Bank 2 refers to the side of the engine opposite Bank 1, and Sensor 1 is the upstream oxygen sensor located before the catalytic converter.

Can a dirty air filter cause the P0153 code in a 2015 GMC Sierra?

Yes, a dirty air filter can affect the air-fuel mixture, potentially slowing the oxygen sensor's response and triggering this code.

Should I replace the oxygen sensor immediately if I get the P0153 code on my 2015 GMC Sierra?

Not necessarily. First, inspect the wiring, connectors, and exhaust system for issues, as replacing the sensor may not resolve the problem if these components are faulty.