AutoCodes – GMC – B0957 GMC

B0957 GMC Code - Parking Assist Front Sensor Right Corner Circuit

Quick Answer

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. Common causes include Faulty Parking Assist Front Sensor Right Corner, Parking Assist Front Sensor Right Corner harness is open or shorted, Parking Assist Front Sensor Right Corner circuit poor electrical connection. 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 GMC indicates Parking Assist Front Sensor Right Corner Circuit.
Common causes: Common causes include Faulty Parking Assist Front Sensor Right Corner, Parking Assist Front Sensor Right Corner harness is open or shorted, Parking Assist Front Sensor Right Corner circuit poor electrical connection.
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.

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Code Popularity 3,241

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 01, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0957 GMC Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The Parking Assist Control Module supplies 8 V to the object sensors via the 8 V reference circuit and provides ground via the low reference circuit. The Parking Assist Control Module triggers the sensors in a sequential loop. After each sensor transmits, the Parking Assist Control Module uses the sensor echo received through the signal circuit to calculate the distance and position of an object. The Diagnostic Trouble Code (DTC) will be set when the Parking Aid Front Sensor signal to the Parking Assist Control Module is out of specification.

OBDII Code B0957 GMC - Parking Assist Front Sensor Right Corner Circuit - AutoCodes.com — B0957 GMC Code - Parking Assist Front Sensor Right Corner Circuit

What does this mean?

What are the Possible Causes of the DTC B0957 GMC?

Faulty Parking Assist Front Sensor Right Corner
Parking Assist Front Sensor Right Corner harness is open or shorted
Parking Assist Front Sensor Right Corner circuit poor electrical connection
Faulty Parking Assist Control Module

How to Fix the DTC B0957 GMC?

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

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0957 GMC 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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Information for Specific GMC Models

B0957 2014 GMC Sierra — Parking Assist Front Sensor Right Corner Circuit
B0957 2015 GMC Sierra — Parking Assist Front Sensor Right Corner Circuit
B0957 2016 GMC Sierra — Parking Assist Front Sensor Right Corner Circuit
B0957 2017 GMC Sierra — Parking Assist Front Sensor Right Corner Circuit
B0957 2018 GMC Sierra — Parking Assist Front Sensor Right Corner Circuit

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 GMC Code

1. What are the common symptoms of OBDII code B0957 GMC?

- The common symptoms of this code include a malfunctioning front right parking assist sensor and a warning light on the dashboard.

2. What can cause the OBDII code B0957 GMC to trigger?

- The code B0957 typically triggers when there is a fault in the front sensor on the right corner of the parking assist system.

3. How can I diagnose the issue related to the Parking Assist Front Sensor Right Corner Circuit?

- To diagnose the issue, you can visually inspect the sensor for any physical damage, check the wiring connections, and use a diagnostic scan tool to retrieve the specific trouble code.

4. Can I still drive my GMC vehicle with the Parking Assist Front Sensor Right Corner Circuit issue?

- Yes, you can still drive your vehicle with this issue, but it is recommended to get it repaired as soon as possible to ensure the proper functioning of the parking assist system.

5. What are some repair tips for fixing the OBDII code B0957 GMC?

- Repairing the code B0957 may involve replacing the front right corner parking assist sensor, checking and repairing any damaged wiring, or resetting the system using a diagnostic tool.

6. Will resetting the OBDII code B0957 GMC fix the issue permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue with the front right corner sensor persists, the code is likely to reappear.

7. How much does it cost to repair the Parking Assist Front Sensor Right Corner Circuit issue?

- The cost of repairing the B0957 code can vary depending on the extent of the damage, the labor rates, and the cost of parts. It is advisable to consult a professional mechanic for an accurate estimate.

8. Can extreme weather conditions affect the performance of the front parking assist sensor?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can impact the performance of the parking assist sensors and may lead to the triggering of the B0957 code.

9. Is it possible to bypass the front right corner sensor to avoid the OBDII code B0957 GMC?

- Bypassing the sensor is not recommended as it can compromise the safety and functionality of the parking assist system. It is best to address the root cause of the issue by fixing or replacing the sensor.

10. How often should I have the parking assist system in my GMC vehicle inspected?

- It is recommended to have the parking assist system inspected during routine maintenance checks or whenever you notice any unusual behavior or warning lights related to the system.