B0074: owner reports and bulletins

Body. We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got B0074 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

17 complaints filed with NHTSA mention B0074, 15 of them since 2015, across 10 different models. The component owners most often filed it under: air bags.

Most-reported models

VehicleComplaintsModel years reported
CHEVROLET EQUINOX62007, 2008, 2009, 2011
CHEVROLET VOLT32012, 2013, 2014

Manufacturer service bulletins that name B0074

15 technical service bulletins and manufacturer communications filed with NHTSA mention B0074, from 5 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CHEVROLET IMPALA (2015, 2016, 2017, 2018), bulletin 10155083: This engineering informational bulletin is requesting information from the field on DTC B0074-0D set or stored in history and the air bag light on and/or intermittently on.
  • BUICK VERANO (2017), bulletin 10159553: N182188910 - Special Coverage. On some 2017 model year Buick Verano vehicles, the Passenger Presence Sensor (PPS) Module wire may have been pinched in the seat trim during seat assembly or servicing. If the wire is pinch…
  • CHEVROLET COBALT (2009, 2010, 2011, 2012), bulletin 10113825: This informational bulletin provides information regarding the Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Plac…
  • BUICK ENCLAVE (2009, 2010, 2011, 2012), bulletin 10113825: This informational bulletin provides information regarding the Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Plac…
  • CADILLAC CTS (2009, 2010, 2011, 2012), bulletin 10113825: This informational bulletin provides information regarding the Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Plac…
  • GMC ACADIA (2009, 2010, 2011, 2012), bulletin 10113825: This informational bulletin provides information regarding the Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Plac…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.