Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that checks if the middle seat belt in the back row is being used.
The B0054 code indicates that the vehicle's computer has detected an issue with the sensor responsible for monitoring the status of the second row center seat belt.
The B0054 code is triggered when the Body Control Module (BCM) or the Airbag Control Module detects a fault in the second row center seat belt sensor circuit. This sensor is responsible for detecting whether the seat belt is fastened or not, which is crucial for airbag deployment logic and passenger safety systems.
• Airbag warning light illuminated
• Seat belt warning light on
• Inaccurate seat belt status detection
• Faulty seat belt sensor
• Damaged wiring or connectors
• Faulty Body Control Module (BCM)
BCM: Body Control Module
OBD-II: On-Board Diagnostics II
• Inspect the seat belt sensor for damage or wear.
• Check the wiring and connectors for continuity and damage.
• Use a diagnostic scanner to read any additional trouble codes.
• Replace the faulty seat belt sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the BCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Tahoe
• GMC Yukon
• Cadillac Escalade
• Regularly inspect seat belts and sensors.
• Avoid spilling liquids on seat belt components.
• Ensure proper installation of seat belt components.
Sensor Issue
• Do not ignore the airbag warning light.
• Have the vehicle inspected by a professional if the code appears.
• Ensure all passengers use seat belts properly.
Check with the vehicle manufacturer for warranty coverage on seat belt components.
This code has been associated with issues in vehicles with advanced airbag and seat belt monitoring systems.
Moderate – While the vehicle can still be driven, it's important to address this issue to ensure passenger safety.
Driving with a malfunctioning seat belt sensor may compromise airbag deployment and passenger safety.
• Vehicle ignition on
• Seat belt fastened and unfastened
The second row center seat belt sensor is typically located within the seat belt buckle or latch assembly.
Q: Can I drive with a B0054 code?
A: While you can drive with this code, it's important to fix it to ensure the safety systems work properly.
Q: Will the airbags still work with a B0054 code?
A: The airbags may not deploy correctly if the seat belt sensor is malfunctioning, affecting passenger safety.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Body and airbag faults often need a scanner that can access more than generic powertrain codes.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking power, ground, and continuity in body-system circuits.
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Universal · Fuse kit
Useful for electrical diagnosis when blown fuses or circuit faults are part of the troubleshooting process.
Useful when body electrical faults trace back to blown fuses or shared circuits.
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