According to Consumer Reports and Cars.com BMW is recalling every 1 Series ever sold in the US due to a seat belt pretensioner that could ignite. Apparently the NHTSA has deemed that the pretensioner is too close to the sound insulation materials in the B-pillar and thus could lead to fire.
Because BMW doesn ‘t have a fix yet for this issue they have halted sales of the 1 Series in the US market. The fix should be coming very soon and rest assured engineers are working on it as we speak.