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B0680 2018 GMC Sierra Code - Passenger Air Bag Off Indicator Circuit

Quick Answer

The B0680 diagnostic trouble code (DTC) for a 2018 GMC Sierra refers to the Passenger Air Bag Off Indicator Circuit. Common causes include Faulty passenger seat occupancy sensor, Wiring issues or loose connections in the circuit, Malfunctioning 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
B0680 2018 GMC Sierra indicates Passenger Air Bag Off Indicator Circuit.
Common causes
Common causes include Faulty passenger seat occupancy sensor, Wiring issues or loose connections in the circuit, Malfunctioning 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 17, 2024
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Code B0680 2018 GMC Sierra Description

The B0680 diagnostic trouble code (DTC) for a 2018 GMC Sierra refers to the Passenger Air Bag Off Indicator Circuit. This code indicates a malfunction in the circuit responsible for the passenger airbag off indicator light. The passenger airbag off indicator light is designed to inform the driver when the passenger airbag has been deactivated, typically when there is no occupant or a small child in the passenger seat.

OBDII Code B0680 2018 GMC Sierra - Passenger Air Bag Off Indicator Circuit
B0680 2018 GMC Sierra Code - Passenger Air Bag Off Indicator Circuit

Common Causes of B0680 2018 GMC Sierra

  1. Faulty passenger seat occupancy sensor.
  2. Wiring issues or loose connections in the circuit.
  3. Malfunctioning airbag control module.
  4. Blown fuse related to the passenger airbag system.
  5. Impact or damage to the passenger airbag system components.

Symptoms of B0680 2018 GMC Sierra

  1. Passenger airbag off indicator light stays on even when the seat is occupied.
  2. Passenger airbag off indicator light fails to illuminate when the seat is empty.
  3. SRS warning light on the dashboard may illuminate.
  4. Vehicle may fail state inspection or emissions testing.

How to Fix B0680 2018 GMC Sierra

  1. Begin by conducting a thorough inspection of the passenger airbag system, including the seat occupancy sensor, wiring, and airbag control module.
  2. Use a diagnostic scan tool to retrieve the specific DTC and pinpoint the exact cause of the issue.
  3. Repair or replace any faulty components identified during the inspection, such as the seat occupancy sensor or damaged wiring.
  4. Clear the DTC from the vehicle's memory using the diagnostic scan tool.
  5. Perform a test drive to ensure that the passenger airbag off indicator light functions correctly and that the issue has been resolved.

Cost to Fix B0680 2018 GMC Sierra

The cost of repairing the Passenger Air Bag Off Indicator Circuit can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair cost for this type of issue can range from $100 to $300, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple sources to ensure you get the best price for the repair.

What does this mean?

Tech Notes for B0680 2018 GMC Sierra

B0680:01 Passenger Air Bag Off Indicator Circuit Short to Battery

B0680:02 Passenger Air Bag Off Indicator Circuit Short to Ground

B0680:04 Passenger Air Bag Off Indicator Circuit Open

B0680:05 Passenger Air Bag Off Indicator Circuit High Voltage/Open

Need more information about the B0680 2018 GMC Sierra code?

Need more information on how to fix the B0680 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B0680 2018 GMC Sierra Code

1. What does the OBDII code B0680 for a 2018 GMC Sierra indicate?

The code B0680 specifically relates to the Passenger Air Bag Off Indicator Circuit in a 2018 GMC Sierra.

2. What are the common symptoms of OBDII code B0680 in a 2018 GMC Sierra?

Common symptoms include the passenger air bag off indicator light staying illuminated or flashing when it shouldn't.

3. What are possible causes of the OBDII code B0680 in a 2018 GMC Sierra?

Potential causes may include a malfunctioning air bag indicator module, faulty wiring, or a defective passenger air bag sensor.

4. How can I diagnose the OBDII code B0680 in my 2018 GMC Sierra?

Diagnosing this code often involves inspecting the wiring and connections related to the passenger air bag system and using a diagnostic scanner to read the codes and reset them after repairs.

5. Can I still drive my 2018 GMC Sierra with the OBDII code B0680 present?

It is not recommended to drive with the air bag system compromised. It is best to address the issue promptly to ensure safety in case of an accident.

6. Are there any DIY repair tips for fixing the OBDII code B0680 in a 2018 GMC Sierra?

While basic troubleshooting like checking for loose connections can be done by DIY enthusiasts, addressing complex issues with the air bag system should be left to professionals due to safety concerns.

7. How much does it typically cost to repair the OBDII code B0680 in a 2018 GMC Sierra?

The cost of repairs can vary depending on the exact cause of the issue. It's advisable to get a diagnostic from a qualified mechanic to determine the precise repair costs.

8. Can resetting the OBDII code B0680 in my 2018 GMC Sierra make the problem go away permanently?

Resetting the code may temporarily turn off the indicator light, but if the underlying issue is not fixed, the code is likely to reappear.

9. Is the OBDII code B0680 in a 2018 GMC Sierra covered under warranty?

Depending on the specific warranty terms of your vehicle, the repair for the B0680 code may be covered if it falls within the warranty period and guidelines.

10. How important is it to address the OBDII code B0680 promptly in a 2018 GMC Sierra?

Addressing the B0680 code promptly is crucial for ensuring the proper functioning of the passenger air bag system, which is a critical safety feature in your vehicle.

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