U0170 — Lost communication with the restraints occupant classification module

Code U0170 is a standard OBD-II diagnostic trouble code: Lost communication with the restraints occupant classification module.

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In our record, U0170 is reported most often on Pontiac and Chevrolet vehicles , against airbags and electrical failure patterns , across 2008–2011 model years. Pontiac alone accounts for 80% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite U0170 across 5 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 U0170 5 patterns

2011 Chevrolet Traverse

airbags — Service Airbag Warning Light - Intermittent or Persistent Illumination

2009 Pontiac G8

airbags — Passenger Presence Module Failure

2009 Pontiac G6

airbags — Airbag warning light / airbag disabled fault code

2009 Pontiac G8

electrical — Passenger presence module (seat sensor) failure — disables all airbags

2008 Pontiac G8

airbags — Passenger Presence Module Malfunction

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 →