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Engine-Codes – GMC – B0098 2018 GMC Sierra

B0098 2018 GMC Sierra Code - Passenger Air Bag Disable Switch

Quick Answer

The B0098 diagnostic trouble code (DTC) on a 2018 GMC Sierra relates to the Passenger Air Bag Disable Switch. Common causes include Faulty passenger airbag disable switch, Wiring issues or loose connections in the airbag system, Faulty airbag 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
B0098 2018 GMC Sierra indicates Passenger Air Bag Disable Switch.
Common causes
Common causes include Faulty passenger airbag disable switch, Wiring issues or loose connections in the airbag system, Faulty airbag 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 11, 2024
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Code B0098 2018 GMC Sierra Description

The B0098 diagnostic trouble code (DTC) on a 2018 GMC Sierra relates to the Passenger Air Bag Disable Switch. This code is set when there is an issue with the passenger airbag disable switch, which is designed to allow the driver to manually turn off the passenger airbag in certain situations, such as when a child is seated in the front passenger seat. The passenger airbag disable switch is an important safety feature that ensures the airbag system functions correctly and protects occupants in the event of a crash.

OBDII Code B0098 2018 GMC Sierra - Passenger Air Bag Disable Switch
B0098 2018 GMC Sierra Code - Passenger Air Bag Disable Switch

Common Causes of B0098 2018 GMC Sierra

  1. Faulty passenger airbag disable switch
  2. Wiring issues or loose connections in the airbag system
  3. Faulty airbag control module
  4. Impact or damage to the passenger airbag system components
  5. Software issues in the vehicle's computer system

Symptoms of B0098 2018 GMC Sierra

  1. Airbag warning light illuminated on the dashboard
  2. Inability to disable the passenger airbag using the switch
  3. Audible warning chime when the ignition is turned on
  4. Diagnostic trouble code B0098 stored in the vehicle's computer

How to Fix B0098 2018 GMC Sierra

  1. Perform a thorough inspection of the passenger airbag disable switch and wiring to check for any visible damage or loose connections.
  2. Test the functionality of the switch using a multimeter to determine if it is sending the correct signals to the airbag control module.
  3. If the switch is faulty, replace it with a new one following the manufacturer's instructions.
  4. Clear the diagnostic trouble code from the vehicle's computer using a scan tool.
  5. Perform a final test to ensure the passenger airbag disable switch is functioning properly and the code does not reappear.

Cost to Fix B0098 2018 GMC Sierra

The cost of repairing a B0098 code on a 2018 GMC Sierra can vary depending on the underlying cause of the issue. In general, the cost of replacing a faulty passenger airbag disable switch can range from $100 to $300, including parts and labor. Additional costs may apply if there are other components in the airbag system that require attention. It is recommended to consult with a qualified mechanic or dealership to get an accurate estimate based on the specific vehicle and location. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to shop around for the best price.

What does this mean?

Tech Notes for B0098 2018 GMC Sierra

B0098:01 Passenger Air Bag Disable Switch Circuit Short Circuit to Battery

B0098:02 Passenger Air Bag Disable Switch Circuit Short Circuit to Ground

B0098:04 Passenger Air Bag Disable Switch Circuit Open

Need more information about the B0098 2018 GMC Sierra code?

Need more information on how to fix the B0098 2018 GMC Sierra code? Get Access to Factory Service Manuals

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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 B0098 2018 GMC Sierra Code

1. What does OBDII code B0098 for a 2018 GMC Sierra mean?

The B0098 code indicates a problem with the Passenger Air Bag Disable Switch circuit in the vehicle.

2. What are the common symptoms of OBDII code B0098 in a 2018 GMC Sierra?

Common symptoms include the passenger airbag warning light staying on, the passenger airbag not deploying in an accident, and potential disabling of the entire airbag system.

3. What are the possible causes of OBDII code B0098 in a 2018 GMC Sierra?

Potential causes can include a faulty passenger air bag disable switch, wiring issues in the circuit, a blown fuse, or a malfunctioning airbag control module.

4. How can I diagnose OBDII code B0098 in my 2018 GMC Sierra?

Diagnosis typically involves using a scan tool to read the code, inspecting the passenger air bag disable switch and its wiring, checking related fuses, and testing the airbag control module.

5. Can I still drive my 2018 GMC Sierra with OBDII code B0098?

It is not recommended to drive the vehicle with this code present, as it may compromise the safety of the airbag system and increase the risk of injury in the event of a collision.

6. How can I repair OBDII code B0098 in my 2018 GMC Sierra?

Repair options may include replacing the passenger air bag disable switch, repairing any damaged wiring, replacing blown fuses, or addressing any issues with the airbag control module.

7. Is it safe to reset the OBDII code B0098 in my 2018 GMC Sierra without fixing the underlying issue?

Resetting the code without addressing the root cause can temporarily turn off the warning light but will not fix the problem with the airbag system, potentially compromising safety.

8. How much does it cost to repair OBDII code B0098 in a 2018 GMC Sierra?

The cost of repair can vary depending on the specific cause of the code, but it may involve parts and labor expenses for replacing components or repairing wiring.

9. Can a DIY enthusiast fix OBDII code B0098 in a 2018 GMC Sierra?

While some aspects of diagnosis and repair may be possible for skilled DIYers, working on the airbag system can be complex and dangerous, so it is recommended to seek professional help.

10. How often does OBDII code B0098 occur in a 2018 GMC Sierra?

The occurrence of this code can vary, but it is relatively uncommon compared to other OBDII codes in the GMC Sierra.

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