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Engine-Codes – GMC – B0955 2016 GMC Sierra

B0955 2016 GMC Sierra Code - Parking Assist Front Sensor Left Middle Circuit

Quick Answer

The B0955 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Parking Assist Front Sensor Left Middle Circuit. Common causes include Faulty front left middle parking sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's functionality. 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
B0955 2016 GMC Sierra indicates Parking Assist Front Sensor Left Middle Circuit.
Common causes
Common causes include Faulty front left middle parking sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's functionality.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0955 2016 GMC Sierra Description

The B0955 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Parking Assist Front Sensor Left Middle Circuit. This code indicates a malfunction in the circuit that controls the front left middle parking sensor. The parking assist system uses sensors located around the vehicle to detect obstacles and assist the driver in parking maneuvers. When this specific sensor circuit fails, it can affect the accuracy and reliability of the parking assist system, potentially leading to issues with parking and maneuvering the vehicle in tight spaces.

OBDII Code B0955 2016 GMC Sierra - Parking Assist Front Sensor Left Middle Circuit
B0955 2016 GMC Sierra Code - Parking Assist Front Sensor Left Middle Circuit

Common Causes of B0955 2016 GMC Sierra

  1. Faulty front left middle parking sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or debris affecting the sensor's functionality.
  4. Electronic control module (ECM) issues.
  5. Water intrusion or environmental factors affecting the sensor circuit.

Symptoms of B0955 2016 GMC Sierra

  1. Parking assist system not working properly or disabled.
  2. Warning lights related to parking assist system illuminated on the dashboard.
  3. Inaccurate or inconsistent readings from the front left middle parking sensor.
  4. Difficulty maneuvering or parking the vehicle in tight spaces.

How to Fix B0955 2016 GMC Sierra

  1. Begin by conducting a visual inspection of the front left middle parking sensor and its wiring for any visible damage or corrosion.
  2. Use a multimeter to test the sensor's resistance and check for continuity in the circuit.
  3. Replace the front left middle parking sensor if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the sensor circuit.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool and test the parking assist system to ensure proper functionality.

Cost to Fix B0955 2016 GMC Sierra

The typical repair costs for addressing the B0955 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Replacement sensors and wiring repairs can range from $100 to $300, while labor costs may add an additional $100 to $200. Overall, the total repair cost could fall within the range of $200 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for B0955 2016 GMC Sierra

B0955:01 Parking Assist Front Sensor Left Middle Circuit Short to Battery

B0955:02 Parking Assist Front Sensor Left Middle Circuit Short to Ground

B0955:04 Parking Assist Front Sensor Left Middle Circuit Open

B0955:06 Parking Assist Front Sensor Left Middle Circuit Low Voltage/Open

B0955:08 Parking Assist Front Sensor Left Middle Circuit Performance - Signal Invalid

B0955:18 Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude

B0955:21 Parking Assist Front Sensor Left Middle Circuit Incorrect Period

B0955:22 Parking Assist Front Sensor Left Middle Circuit Too Short Low-Time

B0955:3A Parking Assist Front Sensor Left Middle Circuit Incorrect Component Installed

B0955:3B Parking Assist Front Sensor Left Middle 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 B0955 2016 GMC Sierra Code

1. What does the OBDII code B0955 mean on a 2016 GMC Sierra?

B0955 indicates an issue with the Parking Assist Front Sensor Left Middle Circuit, which may affect the vehicle's parking assist functionality.

2. What are the common symptoms of code B0955 on a 2016 GMC Sierra?

Symptoms may include the parking assist system not working, warning messages on the dashboard, or proximity sensors failing to detect objects properly.

3. What causes the B0955 code to appear on a 2016 GMC Sierra?

Common causes include a faulty left middle parking sensor, damaged wiring or connectors, water intrusion, or a malfunctioning parking assist module.

4. How do I diagnose the B0955 code on my GMC Sierra?

Start by inspecting the left middle parking sensor and its wiring for damage or corrosion, followed by testing the sensor with a multimeter or scan tool to verify its functionality.

5. Can a faulty parking sensor cause the B0955 code?

Yes, a faulty left middle parking sensor can trigger the B0955 code due to its inability to send or receive signals properly.

6. How do I fix the B0955 code on a 2016 GMC Sierra?

Repairs may involve replacing the faulty left middle parking sensor, repairing damaged wiring or connectors, or addressing moisture-related issues in the sensor area.

7. Is it safe to drive with the B0955 code on my GMC Sierra?

Yes, it’s generally safe to drive, but the parking assist system may not function correctly, increasing the risk of parking-related accidents.

8. How much does it cost to repair the B0955 code on a GMC Sierra?

Repair costs vary but typically range from $100 to $300, depending on whether the sensor, wiring, or module requires replacement.

9. Can I reset the B0955 code without fixing the issue?

Resetting the code without addressing the root cause may temporarily clear it, but the code is likely to return if the problem persists.

10. How can I prevent the B0955 code from recurring?

Regularly inspect and clean parking sensors, protect wiring from damage, and ensure the area around the sensors is free of debris and moisture.

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