NHTSA Complaint #11534121 — 2021 AUDI Q7

The right rear seat belt locking retractor, which was locked when I put my son in his car seat, became unlocked in motion during our trip while his car seat was in use. I check the lock each time I place him in his car seat, and it was locked at the beginning of our journey. Having an unlocked safety belt puts a child at risk since their car seat can't be properly secured with an unlocked safety belt. The retractor had worked prior to this instance since I started using it with our car seat 3 months ago. I have reached out to the Audi dealership and have not heard back.