Engine-CodesBuick – B390A Buick

B390A Buick Code - Short Range Object Sensor Performance

Quick Answer

The B390A diagnostic trouble code (DTC) for Buick vehicles indicates a problem with the short-range object sensor performance. Common causes include Sensor malfunction due to age or wear, Wiring issues such as damaged or corroded connections, Calibration errors in the sensor system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B390A Buick indicates Short Range Object Sensor Performance.
Common causes
Common causes include Sensor malfunction due to age or wear, Wiring issues such as damaged or corroded connections, Calibration errors in the sensor system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B390A Buick Description

The B390A diagnostic trouble code (DTC) for Buick vehicles indicates a problem with the short-range object sensor performance. This code is typically associated with the vehicle's advanced driver-assistance systems (ADAS), specifically the sensors responsible for detecting nearby objects and obstacles to assist with parking and collision avoidance.

OBDII Code B390A Buick - Short Range Object Sensor Performance
B390A Buick Code - Short Range Object Sensor Performance

Common Causes of B390A Buick

  1. Sensor malfunction due to age or wear
  2. Wiring issues such as damaged or corroded connections
  3. Calibration errors in the sensor system
  4. Environmental factors such as dirt, debris, or moisture affecting sensor performance
  5. Impact damage to the sensor from collisions or road hazards

Symptoms of B390A Buick

  1. ADAS warning lights illuminated on the dashboard
  2. Inaccurate or erratic object detection alerts
  3. Difficulty in parking or maneuvering the vehicle in tight spaces
  4. Loss of functionality in parking assistance features
  5. Unintended braking or steering interventions by the ADAS

How to Fix B390A Buick

  1. Begin by conducting a thorough diagnostic scan to retrieve the specific fault codes and pinpoint the issue with the short-range object sensor.
  2. Inspect the sensor and its wiring connections for any visible damage or corrosion. Replace any faulty components as needed.
  3. Perform a sensor calibration procedure to ensure accurate object detection and alignment with the vehicle's ADAS system.
  4. Test the sensor system by simulating various parking and obstacle scenarios to verify that the issue has been resolved.
  5. Clear the DTC codes from the vehicle's computer system and perform a final test drive to confirm that the ADAS functions are working correctly.

Cost to Fix B390A Buick

The typical repair costs for addressing the B390A code for short-range object sensor performance can vary depending on the extent of the issue and the specific components that need to be replaced. In general, the cost of parts for sensor replacement or wiring repairs can range from $200 to $500, while labor costs can add another $100 to $300 to the total repair bill.

Need more information about the B390A Buick code?

Need more information on how to fix the B390A Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B390A Buick code diagnosed by a professional: Find a repair shop in your area

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 B390A Buick Code

1. What are common symptoms of OBDII code B390A Buick (Short Range Object Sensor Performance)?

- Common symptoms include malfunctioning parking assist system, false alerts, and disabled sensors.

2. What are the possible causes of OBDII code B390A Buick (Short Range Object Sensor Performance)?

- The code may be triggered by faulty short-range object sensors, wiring issues, or a malfunctioning control module.

3. How can I diagnose OBDII code B390A Buick (Short Range Object Sensor Performance)?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code and checking the short-range object sensors and related wiring for any issues.

4. What are some repair tips for fixing OBDII code B390A Buick (Short Range Object Sensor Performance)?

- Repair tips may include checking and cleaning the sensors, inspecting and repairing any damaged wiring, and resetting the system after repairs.

5. Can I drive my Buick with OBDII code B390A (Short Range Object Sensor Performance)?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the parking assist system.

6. How much does it typically cost to repair OBDII code B390A Buick (Short Range Object Sensor Performance)?

- Repair costs can vary depending on the specific issue causing the code, but they may range from $100 to $300 for sensor replacement or wiring repairs.

7. Will OBDII code B390A Buick (Short Range Object Sensor Performance) affect my vehicle's performance?

- This code is more related to the parking assist system and may not directly impact the vehicle's overall performance, but it can affect the convenience and safety features.

8. Can I reset OBDII code B390A Buick (Short Range Object Sensor Performance) without repairs?

- Resetting the code without addressing the underlying issue may temporarily clear the code, but it is recommended to diagnose and repair the problem to prevent it from recurring.

9. Are there any recalls or technical service bulletins related to OBDII code B390A Buick?

- It is advisable to check with Buick dealerships or online resources for any recalls or technical service bulletins specific to OBDII code B390A affecting Buick vehicles.

10. How can I prevent OBDII code B390A Buick (Short Range Object Sensor Performance) from occurring in the future?

- Regularly inspecting and maintaining the parking assist system components, such as sensors and wiring, can help prevent issues that trigger this code.

Discuss the causes and fixes for B390A Buick OBDII Code

Code B390A Buick comments

No comments found for this page.