class action lawsuit OnStar module backorder

I bought a used 2023 Buick Envision Essence on 3/30/25 (from a Buick dealer). It was a previous rental/loaner and had over 49k miles so no warranty and I did not purchase a warranty. 1-2 weeks after purchase the check engine light (CEL) came on. Short version is it was diagnosed on 7/15/25...need Telematic module replaced - $1684.16 plus tax. I dropped the car off on Friday 8/15/25 for the fix. Interesting thing is part is not on back order for me... ETA for part to get to dealer is Friday 8/22/25. I'm in Los Angeles. Apparently California gets first dibs on parts. I feel bad for everyone here waiting for months! This doesn't make sense.