B0255 low

Driver Seat Belt Reminder Chime Circuit

The B0255 code means the vehicle's onboard diagnostic system has detected: Driver Seat Belt Reminder Chime Circuit. This is a low severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
moderate
Estimated cost
$50 - $400 (parts and labor)
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Common Symptoms

  • Driver seat belt warning active
  • Seat belt chime sounds incorrectly
  • Driver belt retractor not locking
  • Dashboard restraint indicator on

Probable Causes (Ranked by Likelihood)

  • Faulty driver seat belt buckle switch Very High
  • Damaged driver belt wiring High
  • BCM seat belt input fault Moderate
  • Instrument cluster warning circuit issue Low

Step-by-Step Diagnostic Procedure

  1. Test driver seat belt buckle switch

  2. Inspect driver belt wiring harness

  3. Check BCM seat belt inputs with scan tool

  4. Verify warning lamp circuit

Frequently Asked Questions

Why does my seat belt chime keep going off?

A faulty buckle switch may incorrectly report the belt as unbuckled, triggering the warning chime.

Can I disable the seat belt warning?

It is not recommended. The warning system is a safety feature. Repair the underlying fault instead.

How much does a buckle switch cost?

Seat belt buckle switches typically cost $20-$60 for the part, with $50-$150 in labor.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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