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Engine-Codes – GMC – B008F 2018 GMC Sierra

B008F 2018 GMC Sierra Code - Rollover Protection Disable Switch

Quick Answer

The B008F diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the Rollover Protection Disable Switch. Common causes include Faulty rollover protection disable switch, Wiring issues or loose connections in the system, Malfunctioning rollover protection control 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
B008F 2018 GMC Sierra indicates Rollover Protection Disable Switch.
Common causes
Common causes include Faulty rollover protection disable switch, Wiring issues or loose connections in the system, Malfunctioning rollover protection control 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 12, 2024
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Code B008F 2018 GMC Sierra Description

The B008F diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the Rollover Protection Disable Switch. This code indicates that there is a fault detected in the system that controls the rollover protection feature in the vehicle. Rollover protection systems are designed to deploy rollover bars or other safety measures in the event of a potential rollover accident to protect occupants.

OBDII Code B008F 2018 GMC Sierra - Rollover Protection Disable Switch
B008F 2018 GMC Sierra Code - Rollover Protection Disable Switch

Common Causes of B008F 2018 GMC Sierra

  1. Faulty rollover protection disable switch
  2. Wiring issues or loose connections in the system
  3. Malfunctioning rollover protection control module
  4. Impact or damage to the vehicle that may have affected the system
  5. Software glitch or calibration error in the system

Symptoms of B008F 2018 GMC Sierra

  1. Illuminated airbag warning light on the dashboard
  2. Inability to activate or deactivate the rollover protection system
  3. Warning message displayed on the instrument cluster
  4. Possible loss of communication with the system

How to Fix B008F 2018 GMC Sierra

  1. Begin by conducting a thorough inspection of the rollover protection system, including the disable switch, wiring, and control module.
  2. Check for any loose connections or damaged wires that may be causing the issue.
  3. Test the rollover protection disable switch to determine if it is functioning correctly.
  4. If the switch is faulty, replace it with a new one following manufacturer guidelines.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool to reset the system.

Cost to Fix B008F 2018 GMC Sierra

The cost of repairing the Rollover Protection Disable Switch can vary depending on the specific issue that is causing the fault. On average, the cost of replacing a faulty switch or repairing wiring issues can range from $200 to $500, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate. Additionally, the cost may increase if there are more extensive repairs or replacements needed in the system.

What does this mean?

Tech Notes for B008F 2018 GMC Sierra

B008F:02 Rollover Protection Disable Switch Circuit Short to Ground

B008F:05 Rollover Protection Disable Switch Circuit High Voltage/Open

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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 B008F 2018 GMC Sierra Code

1. What does the OBDII code B008F for a 2018 GMC Sierra indicate?

- The code B008F refers to the Rollover Protection Disable Switch on a 2018 GMC Sierra.

2. What are the common symptoms of a Rollover Protection Disable Switch issue in a 2018 GMC Sierra?

- Common symptoms include the airbag warning light staying illuminated on the dashboard and a message indicating a fault in the rollover protection system.

3. What can cause the B008F code to trigger in a 2018 GMC Sierra?

- The B008F code may be triggered by a faulty rollover protection disable switch, wiring issues, or a malfunction in the rollover protection system.

4. How can I diagnose a Rollover Protection Disable Switch problem in my 2018 GMC Sierra?

- Diagnosing the issue may involve checking the wiring connections, inspecting the disable switch for physical damage, and using a diagnostic scanner to read the specific fault code.

5. Is it safe to drive my 2018 GMC Sierra with the B008F code present?

- It is not recommended to drive the vehicle with the B008F code active, as it indicates a potential issue with the rollover protection system that could compromise safety in the event of an accident.

6. Can I reset the B008F code in my 2018 GMC Sierra myself?

- While you can attempt to clear the code with a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair a Rollover Protection Disable Switch problem in a 2018 GMC Sierra?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the disable switch, repairing wiring, or addressing other components of the rollover protection system.

8. Are there any recalls or technical service bulletins related to the B008F code in the 2018 GMC Sierra?

- It is advisable to check with a GMC dealership or refer to the manufacturer's website for information on any recalls or technical service bulletins related to the B008F code in the 2018 GMC Sierra.

9. Can a DIY enthusiast with basic automotive knowledge fix a Rollover Protection Disable Switch issue in a 2018 GMC Sierra?

- While some simple troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing complex issues with the rollover protection system may require professional expertise and specialized tools.

10. How can I prevent the B008F code from reoccurring in my 2018 GMC Sierra?

- Regular maintenance, timely repairs of any related issues, and following manufacturer recommendations can help prevent the B008F code from reoccurring in the 2018 GMC Sierra.

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