Engine-CodesGMC – B0955 2014 GMC Sierra

B0955 2014 GMC Sierra Code - Parking Assist Front Sensor Left Middle Circuit

Quick Answer

The B0955 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Parking Assist Front Sensor Left Middle Circuit. Common causes include Damaged wiring or connectors in the front left middle sensor circuit, Faulty front left middle parking sensor, ECM malfunction affecting the sensor circuit. 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 2014 GMC Sierra indicates Parking Assist Front Sensor Left Middle Circuit.
Common causes
Common causes include Damaged wiring or connectors in the front left middle sensor circuit, Faulty front left middle parking sensor, ECM malfunction affecting the sensor circuit.
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 B0955 2014 GMC Sierra Description

The B0955 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Parking Assist Front Sensor Left Middle Circuit. This code indicates that there is a malfunction in the circuit that controls the front parking sensor located on the left side of the vehicle, specifically in the middle position. The parking assist system uses sensors to detect objects in close proximity to the vehicle, providing the driver with alerts to help avoid collisions while parking or maneuvering in tight spaces.

OBDII Code B0955 2014 GMC Sierra - Parking Assist Front Sensor Left Middle Circuit
B0955 2014 GMC Sierra Code - Parking Assist Front Sensor Left Middle Circuit

Common Causes of B0955 2014 GMC Sierra

  1. Damaged wiring or connectors in the front left middle sensor circuit.
  2. Faulty front left middle parking sensor.
  3. ECM malfunction affecting the sensor circuit.
  4. Water or debris intrusion affecting sensor performance.
  5. Physical damage to the sensor due to impacts or environmental factors.

Symptoms of B0955 2014 GMC Sierra

  1. Parking assist system not providing alerts when objects are near the front left middle of the vehicle.
  2. Warning light on the dashboard related to the parking assist system.
  3. Inaccurate or inconsistent parking assist alerts.
  4. Difficulty maneuvering or parking in tight spaces due to lack of sensor assistance.

How to Fix B0955 2014 GMC Sierra

  1. Begin by visually inspecting the wiring and connectors in the front left middle sensor circuit for any signs of damage or corrosion. Repair or replace any faulty components.
  2. Test the front left middle parking sensor using a multimeter to check for proper functionality. Replace the sensor if it is found to be defective.
  3. Scan the vehicle's ECM for any stored fault codes related to the parking assist system. Clear the codes and retest the system to see if the issue persists.
  4. Check for any water or debris inside the sensor housing that may be affecting its performance. Clean and dry the sensor as needed.
  5. After completing the repairs, reset the parking assist system and test it to ensure that the front left middle sensor is now functioning correctly.

Cost to Fix B0955 2014 GMC Sierra

The cost of repairing a Parking Assist Front Sensor Left Middle Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. Typically, replacing a faulty sensor or repairing wiring issues can range from $150 to $400, including parts and labor. However, additional diagnostic time may be needed to pinpoint the exact source of the problem, which can increase the overall cost. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops can vary between $80 and $150 per hour, so it's advisable to inquire about rates in your local area for a more precise cost estimate.

Tech Notes for B0955 2014 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B0955 on a 2014 GMC Sierra related to the Parking Assist Front Sensor Left Middle Circuit?

- The common symptoms include malfunction or complete failure of the front parking assist sensor on the left middle side of the vehicle.

2. What are the possible causes of OBDII code B0955 on a 2014 GMC Sierra?

- The code B0955 typically indicates a fault in the wiring, connections, or the sensor itself. It could be due to damaged wiring, a faulty sensor, or a poor connection.

3. How can I diagnose the issue related to the Parking Assist Front Sensor Left Middle Circuit on my 2014 GMC Sierra?

- To diagnose the problem, you can visually inspect the wiring and connections for any signs of damage or corrosion. You can also use a multimeter to test the sensor's functionality.

4. Can I repair the Parking Assist Front Sensor Left Middle Circuit issue on my 2014 GMC Sierra myself?

- If you have experience with automotive electrical systems and the right tools, you may be able to repair the issue yourself. However, if you're unsure, it's best to consult a professional mechanic.

5. Are there any quick tips for fixing OBDII code B0955 on a 2014 GMC Sierra?

- Quick tips include checking the sensor for physical damage, ensuring all connections are secure, and resetting the code to see if it reoccurs.

6. What is the recommended course of action if OBDII code B0955 keeps coming back on a 2014 GMC Sierra?

- If the code keeps reappearing after resetting, it's best to have a professional diagnose the issue to determine the exact cause and the necessary repairs.

7. Can a faulty Parking Assist Front Sensor Left Middle Circuit affect other vehicle systems on a 2014 GMC Sierra?

- While the primary impact of a faulty sensor is on the parking assist system, it may also affect related systems that rely on sensor data for operation.

8. Is it safe to drive my 2014 GMC Sierra with OBDII code B0955 related to the Parking Assist Front Sensor Left Middle Circuit?

- It is generally safe to drive the vehicle with this code, but keep in mind that your front parking assist system may not function correctly, so be extra cautious when parking.

9. How do I reset the OBDII code B0955 on a 2014 GMC Sierra after fixing the issue?

- You can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. Remember that the code may reappear if the underlying issue is not fully resolved.

10. Can extreme weather conditions affect the performance of the Parking Assist Front Sensor Left Middle Circuit on a 2014 GMC Sierra?

- Yes, extreme weather conditions like heavy rain, snow, or extreme temperatures can potentially impact the sensor's performance and lead to false readings or malfunctions.

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