B0074 — Airbag / restraint system deployment loop circuit fault

Code B0074 is a standard OBD-II diagnostic trouble code: Airbag / restraint system deployment loop circuit fault.

In our record, B0074 is reported most often on Chevrolet and Buick vehicles , against airbags and electrical failure patterns , across 2007–2016 model years. Chevrolet alone accounts for 89% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite B0074 across 9 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report B0074 9 patterns

2016 Chevrolet Malibu

airbags — Passenger airbag on/off indicator malfunction

2014 Chevrolet Volt

airbags — Passenger Occupancy/Presence Sensor Malfunction

2013 Chevrolet Volt

airbags — Passenger Seat Occupancy Sensor (Passenger Presence Module/PSS) Failure

2012 Chevrolet Volt

airbags — Passenger Presence Sensor / Passenger Sensing System (PSS) Malfunction

2011 Chevrolet Equinox

airbags — Intermittent Service Airbag warning light

2009 Chevrolet Equinox

airbags — Passenger Occupant Detection Sensor Malfunction

2009 Chevrolet Equinox

electrical — Passenger-presence detection module failure

2008 Buick Enclave

airbags — Passenger seat occupancy sensor intermittent or continuous failure

2007 Chevrolet Equinox

airbags — Passenger Presence Sensor Failure—Airbag Off with Occupant

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →