AutoCodes – GMC – B0955 2018 GMC Sierra

B0955 2018 GMC Sierra Code - Parking Assist Front Sensor Left Middle 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 Left Middle, Parking Assist Front Sensor Left Middle harness is open or shorted, Parking Assist Front Sensor Left Middle 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: B0955 2018 GMC Sierra indicates Parking Assist Front Sensor Left Middle Circuit.
Common causes: Common causes include Faulty Parking Assist Front Sensor Left Middle, Parking Assist Front Sensor Left Middle harness is open or shorted, Parking Assist Front Sensor Left Middle 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 274

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 B0955 2018 GMC Sierra 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 B0955 2018 GMC Sierra - Parking Assist Front Sensor Left Middle Circuit - AutoCodes.com — B0955 2018 GMC Sierra Code - Parking Assist Front Sensor Left Middle Circuit

What does this mean?

What are the Possible Causes of the DTC B0955 2018 GMC Sierra?

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

How to Fix the DTC B0955 2018 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

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0955 2018 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 B0955 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code B0955 in a 2018 GMC Sierra related to the Parking Assist Front Sensor Left Middle Circuit?

- The common symptoms include a malfunctioning front parking assist sensor on the left middle side of the vehicle, leading to inaccurate or non-functional parking assist features.

2. What are the possible causes of OBDII code B0955 in a 2018 GMC Sierra?

- The code B0955 can be triggered by issues such as damaged wiring or connectors, a faulty front parking assist sensor, or a problem with the control module.

3. How can I diagnose the Parking Assist Front Sensor Left Middle Circuit issue in my 2018 GMC Sierra?

- Diagnosis typically involves visually inspecting the sensor and its connections for any visible damage, checking the wiring for continuity, and using a scan tool to read the specific diagnostic trouble code.

4. What are some tips for repairing OBDII code B0955 in a 2018 GMC Sierra?

- Repairing the issue may involve repairing or replacing damaged wiring, connectors, or the front parking assist sensor itself. Sometimes, reprogramming the control module may also be necessary.

5. Can I fix the Parking Assist Front Sensor Left Middle Circuit problem in my 2018 GMC Sierra by myself?

- While basic inspections and simple repairs like checking for loose connections can be done by DIY enthusiasts, diagnosing and repairing complex issues may require professional help to ensure proper and accurate repair.

6. How critical is it to address OBDII code B0955 in a 2018 GMC Sierra?

- Addressing the code is important as it affects the functionality of the parking assist system, which can compromise safety and convenience while parking the vehicle.

7. Are there any recalls or technical service bulletins related to OBDII code B0955 in a 2018 GMC Sierra?

- It's recommended to check with a GMC dealership or refer to the manufacturer's website for any relevant recalls or technical service bulletins related to this specific OBDII code.

8. How much does it typically cost to repair OBDII code B0955 in a 2018 GMC Sierra?

- The cost of repair can vary depending on the extent of the issue, parts needed, and labor rates. It's advisable to obtain quotes from reputable auto repair shops for an accurate estimate.

9. Can a persistent B0955 code affect other systems in a 2018 GMC Sierra?

- While the code specifically relates to the parking assist system, unresolved issues with sensors or wiring could potentially impact other vehicle systems that rely on sensor data for operation.

10. Is it safe to continue driving my 2018 GMC Sierra with the Parking Assist Front Sensor Left Middle Circuit issue?

- It is generally safe to drive the vehicle with this issue, but it's important to exercise caution while parking and maneuvering in tight spaces due to the potential lack of functioning parking assist features.