NHTSA Complaint #11684845 — 2016 CADILLAC ELR

Vehicle is producing a "Service Airbag" warning message and red airbag light on the instrument cluster at each start. The problem code 'U0170' is found which correlates to 'Lost Communication With Passenger Presence Module'. The dealer advised that the part is discontinued and no longer available. The needed Part Number is: 23504892 which is a single year, single model only part. I checked with numerous aftermarket sources as well as salvage yards for an alternative to the GM part, but no luck. It appears the part does not exist in the marketplace. The dealership, and Cadillac Customer Service, were unable to provide a path forward. I am left no alternative but to operate the vehicle without the passenger side airbag and any other airbags that may be tied to the inability of the car to detect the presence of a passenger in the seat, as well as an annoying error and light every time I start the car.