B0028Critical severity

Driver Seat Belt Pretensioner Circuit

The driver seat belt pretensioner circuit has a fault.

Safe to Drive?
No

Have this diagnosed before driving further

Informational only. Consult a qualified mechanic.

Estimated Repair Cost
$200 - $800
Common Causes
  • Faulty pretensioner
  • Wiring under seat damaged
  • Connector issue
Recommended Action

Have the seat belt pretensioner inspected. It may not activate in a collision.

What does B0028 mean?

The B0028 OBD-II diagnostic trouble code (DTC) indicates: driver seat belt pretensioner circuit. This is a critical-severity body code that your vehicle's onboard diagnostics system triggers when the driver seat belt pretensioner circuit has a fault. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.

Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.

Track codes on your vehicle — sign up free

Log OBD-II codes, get maintenance reminders, and keep your complete service history.