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Code B0084

Symptoms

• Airbag warning light on

• Seatbelt may not function properly

• Possible error message on dashboard

Common Causes

• Faulty seat belt load limiter

• Damaged wiring or connectors

• Malfunctioning airbag control module

Glossary

Load Limiter: A device that controls the force applied by a seatbelt during a collision.

Airbag Control Module: The computer that manages the airbag system in a vehicle.

Related Codes

• B0080

• B0081

Laymans terms

This code means there's a problem with the part of the car that controls how tight the seatbelt gets in the middle seat of the second row when there's a crash.

Explanation

The code B0084 indicates an issue with the deployment control of the load limiter for the second row center seat belt. This system is designed to manage the force applied by the seatbelt during a collision.

Technical description

The B0084 code is triggered when the airbag control module detects a malfunction in the circuit responsible for controlling the deployment of the load limiter in the second row center seat belt. This system is crucial for reducing the risk of injury by controlling the seatbelt tension during a crash.

Diagnosis steps

• Check for any blown fuses related to the airbag system.

• Inspect the wiring and connectors for damage or corrosion.

• Test the seat belt load limiter for proper operation.

Repair procedures

• Replace the faulty seat belt load limiter.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the airbag control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Traverse

• GMC Acadia

• Buick Enclave

Preventive measures

• Regularly inspect seatbelt systems for wear and damage.

• Ensure airbag system diagnostics are performed during routine maintenance.

• Keep the vehicle's software updated.

Error code type

Safety System Issue

User experience recommendations

• Do not ignore the airbag warning light; have it checked by a professional.

• Ensure all passengers are using seatbelts properly.

• Avoid tampering with airbag system components.

Warranty information

Repairs may be covered under the vehicle's safety system warranty. Check with the manufacturer.

Historical data

This code has been associated with vehicles equipped with advanced safety systems where seatbelt load limiters are standard.

Urgency level

High – This issue affects the vehicle's safety systems and should be addressed promptly.

Legal and safety notice

Driving with malfunctioning safety systems can increase the risk of injury in an accident. It is important to address this issue immediately.

Testing conditions

• Vehicle ignition in 'On' position

• Airbag system diagnostics running

Component location

The seat belt load limiter is located within the seatbelt assembly of the second row center seat.

FAQs

Q: Can I drive with the B0084 code?
A: It's not recommended to drive with this code active, as it indicates a safety system malfunction.

Q: How do I reset the airbag warning light?
A: The light can be reset by fixing the underlying issue and using an OBD-II scanner to clear the code.

Last updated: Jun 9, 2026 • Source: internal database
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