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B0087 2017 GMC Sierra Code - Left Rear Side Impact Sensor

Quick Answer

The B0087 code on a 2017 GMC Sierra indicates a problem with the left rear side impact sensor. Common causes include Sensor wiring harness damage or corrosion, Sensor malfunction due to impact or vehicle vibration, Faulty sensor module. 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
B0087 2017 GMC Sierra indicates Left Rear Side Impact Sensor.
Common causes
Common causes include Sensor wiring harness damage or corrosion, Sensor malfunction due to impact or vehicle vibration, Faulty sensor module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0087 2017 GMC Sierra Description

The B0087 code on a 2017 GMC Sierra indicates a problem with the left rear side impact sensor. This sensor is a crucial component of the vehicle's safety system, as it is responsible for detecting impacts on the left side of the vehicle and triggering the deployment of the side airbags in the event of a collision. When this sensor malfunctions or fails, it can compromise the effectiveness of the airbag system, potentially putting occupants at risk in the event of a side impact collision.

OBDII Code B0087 2017 GMC Sierra - Left Rear Side Impact Sensor
B0087 2017 GMC Sierra Code - Left Rear Side Impact Sensor

Common Causes of B0087 2017 GMC Sierra

  1. Sensor wiring harness damage or corrosion.
  2. Sensor malfunction due to impact or vehicle vibration.
  3. Faulty sensor module.
  4. Electrical issues in the airbag system.
  5. Vehicle collision or impact causing sensor damage.

Symptoms of B0087 2017 GMC Sierra

  1. Airbag warning light illuminated on the dashboard.
  2. Side airbags not deploying in a side impact collision.
  3. False triggering of the side airbags.
  4. Diagnostic trouble code B0087 stored in the vehicle's computer system.

How to Fix B0087 2017 GMC Sierra

  1. Begin by diagnosing the specific cause of the B0087 code using a diagnostic scanner to pinpoint the exact issue with the left rear side impact sensor.
  2. Inspect the sensor wiring harness for any damage, corrosion, or loose connections. Repair or replace any damaged wiring as needed.
  3. Test the sensor module for proper functionality and replace it if it is found to be faulty.
  4. Clear the diagnostic trouble code from the vehicle's computer system after the repair is completed.
  5. Perform a test drive to ensure that the left rear side impact sensor is now functioning correctly and that the airbag system is operating as intended.

Cost to Fix B0087 2017 GMC Sierra

The cost of repairing a left rear side impact sensor on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the cost of parts and labor in your area. Typically, the cost of replacing a sensor module can range from $200 to $500, while repairing wiring harness damage may cost around $100 to $300. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, you can expect to pay anywhere from $300 to $800 for a repair related to the B0087 diagnostic trouble code. It's recommended to contact local auto repair shops for a more accurate estimate based on your specific situation.

What does this mean?

Tech Notes for B0087 2017 GMC Sierra

B0087:02 Left Rear Side Impact Sensor Short to Ground

B0087:05 Left Rear Side Impact Sensor High Voltage/Open

B0087:39 Left Rear Side Impact Sensor Internal Malfunction

B0087:3A Left Rear Side Impact Sensor Incorrect Component Installed

B0087:71 Left Rear Side Impact Sensor Invalid Data

Need more information about the B0087 2017 GMC Sierra code?

Need more information on how to fix the B0087 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0087 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B0087 2017 GMC Sierra Code

1. What does OBDII code B0087 for the Left Rear Side Impact Sensor on a 2017 GMC Sierra indicate?

The code B0087 typically indicates a malfunction in the left rear side impact sensor of a 2017 GMC Sierra.

2. What are some common symptoms of a faulty left rear side impact sensor in a 2017 GMC Sierra?

Common symptoms of a faulty left rear side impact sensor may include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's deployment.

3. What are possible causes of OBDII code B0087 for the left rear side impact sensor on a 2017 GMC Sierra?

Possible causes of code B0087 include a damaged sensor, wiring issues, loose connections, or a faulty control module.

4. How can I diagnose the issue with the left rear side impact sensor on my 2017 GMC Sierra?

Diagnosing the problem may involve using a scan tool to retrieve the specific trouble code, inspecting the sensor and its wiring for any visible damage, and checking for loose connections.

5. Can I repair a faulty left rear side impact sensor on my 2017 GMC Sierra myself?

While some basic inspections and checks can be done by DIY enthusiasts, repairing or replacing the left rear side impact sensor may require specialized tools and expertise. It's recommended to consult a professional mechanic for proper diagnosis and repair.

6. Are there any safety concerns associated with a malfunctioning left rear side impact sensor in a 2017 GMC Sierra?

A malfunctioning left rear side impact sensor can affect the proper deployment of the airbag system in the event of a side impact collision, potentially compromising passenger safety. It's crucial to address the issue promptly.

7. How much does it typically cost to repair or replace the left rear side impact sensor on a 2017 GMC Sierra?

The cost of repairing or replacing the left rear side impact sensor can vary depending on the extent of the damage, the need for new parts, and labor costs. It's advisable to obtain estimates from reputable repair shops.

8. Can a malfunctioning left rear side impact sensor affect the overall performance of my 2017 GMC Sierra?

While the primary function of the side impact sensor is related to the airbag system, a malfunction could potentially impact other safety features or the overall electronic system of the vehicle. Prompt attention is advisable.

9. Is it safe to drive my 2017 GMC Sierra with a faulty left rear side impact sensor?

It's not recommended to drive the vehicle with a malfunctioning left rear side impact sensor, as it may compromise the effectiveness of the airbag system in the event of a collision. Seek professional assistance and repair as soon as possible.

10. How can I prevent issues with the left rear side impact sensor on my 2017 GMC Sierra?

Regular maintenance checks, avoiding physical damage to the sensor during repairs or modifications, and prompt attention to any warning lights or unusual symptoms can help prevent issues with the left rear side impact sensor.

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