Engine-CodesGMC – B0957 2017 GMC Sierra

B0957 2017 GMC Sierra Code - Parking Assist Front Sensor Right Corner Circuit

Quick Answer

The B0957 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the Parking Assist Front Sensor Right Corner Circuit. Common causes include Faulty front right corner parking sensor, Wiring or connector issues in the circuit, Corrosion or damage to the sensor or wiring. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B0957 2017 GMC Sierra indicates Parking Assist Front Sensor Right Corner Circuit.
Common causes
Common causes include Faulty front right corner parking sensor, Wiring or connector issues in the circuit, Corrosion or damage to the sensor or wiring.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B0957 2017 GMC Sierra Description

The B0957 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the Parking Assist Front Sensor Right Corner Circuit. This code indicates that there is a malfunction in the circuit that controls the front right corner parking sensor. The parking assist system uses sensors located on the front and rear bumpers to detect objects in close proximity to the vehicle. When the system detects an object, it alerts the driver through visual or audible warnings to prevent collisions while parking.

OBDII Code B0957 2017 GMC Sierra - Parking Assist Front Sensor Right Corner Circuit
B0957 2017 GMC Sierra Code - Parking Assist Front Sensor Right Corner Circuit

Common Causes of B0957 2017 GMC Sierra

  1. Faulty front right corner parking sensor.
  2. Wiring or connector issues in the circuit.
  3. Corrosion or damage to the sensor or wiring.
  4. Electronic control module (ECM) malfunction.
  5. Poor connection or loose wiring.

Symptoms of B0957 2017 GMC Sierra

  1. Parking assist system not providing accurate distance warnings.
  2. No audible or visual alerts when approaching obstacles.
  3. Parking assist system error message displayed on the instrument cluster.
  4. Inconsistent behavior of the parking assist system.

How to Fix B0957 2017 GMC Sierra

  1. Begin by conducting a visual inspection of the front right corner parking sensor and its wiring to check for any visible damage, corrosion, or loose connections.
  2. Use a multimeter to test the continuity of the sensor circuit and check for any shorts or open circuits.
  3. If the sensor or wiring is found to be faulty, replace the front right corner parking sensor and repair any damaged wiring.
  4. Clear the DTC from the vehicle's computer using a diagnostic scan tool.
  5. Test the parking assist system to ensure that the issue has been resolved and that the sensor is providing accurate readings.

Cost to Fix B0957 2017 GMC Sierra

The cost of repairing the Parking Assist Front Sensor Right Corner Circuit can vary depending on the extent of the damage and the specific parts needed for replacement. On average, the cost of replacing a parking sensor and repairing the circuit can range from $200 to $500, including parts and labor. However, it is important to note that labor rates and part prices can vary based on the location of the repair shop, the vehicle's make and model, and the expertise of the technician. It is recommended to obtain quotes from multiple repair shops to compare costs and ensure a competitive price.

Tech Notes for B0957 2017 GMC Sierra

B0957:01 Parking Assist Front Sensor Right Corner Circuit Short to Battery

B0957:02 Parking Assist Front Sensor Right Corner Circuit Short to Ground

B0957:04 Parking Assist Front Sensor Right Corner Circuit Open

B0957:06 Parking Assist Front Sensor Right Corner Circuit Low Voltage/Open

B0957:08 Parking Assist Front Sensor Right Corner Circuit Performance - Signal Invalid

B0957:18 Parking Assist Front Sensor Right Corner Circuit Low Signal Amplitude

B0957:21 Parking Assist Front Sensor Right Corner Circuit Incorrect Period

B0957:22 Parking Assist Front Sensor Right Corner Circuit Too Short Low-Time

B0957:3A Parking Assist Front Sensor Right Corner Circuit Incorrect Component Installed

B0957:3B Parking Assist Front Sensor Right Corner Circuit Self-Test Malfunction

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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 B0957 2017 GMC Sierra Code

1. What does the OBDII code B0957 mean on a 2017 GMC Sierra?

The code B0957 indicates an issue with the Parking Assist Front Sensor Right Corner Circuit, typically related to wiring, sensor failure, or a connection problem.

2. What are the common symptoms of the B0957 code on a GMC Sierra?

Symptoms may include a non-functional parking assist system, warning messages on the dashboard, or audible alerts not working properly.

3. What causes the B0957 code to appear on a 2017 GMC Sierra?

Common causes include a faulty parking sensor, damaged or corroded wiring, a loose connection, or a malfunctioning control module.

4. How do I diagnose the B0957 code on my GMC Sierra?

Start by inspecting the right-front parking sensor and its wiring for damage or corrosion. Use an OBDII scanner to confirm the code and test the sensor for proper operation.

5. Can I drive with the B0957 code active on my GMC Sierra?

Yes, you can drive, but the parking assist system may not function correctly, increasing the risk of low-speed collisions in tight spaces.

6. How do I fix the B0957 code on a 2017 GMC Sierra?

Repairs may include replacing the faulty parking sensor, repairing damaged wires, cleaning corroded connections, or reprogramming the control module if needed.

7. How much does it cost to repair the B0957 code on a GMC Sierra?

Costs vary depending on the issue, but replacing a parking sensor typically costs $50-$200 for parts, plus labor if done professionally.

8. Can I reset the B0957 code without fixing the issue?

You can reset the code with an OBDII scanner, but it will likely return unless the underlying problem is resolved.

9. How can I prevent the B0957 code from occurring on my GMC Sierra?

Regularly inspect parking sensors and wiring for damage, clean connections to prevent corrosion, and avoid physical impacts to the sensor areas.

10. Does the B0957 code indicate a failure in other parking assist sensors?

No, the B0957 code specifically refers to the right-front corner sensor circuit, but it’s a good idea to check all sensors for proper operation.

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