Chest Clip, Buckle, Harness Related Problems of the 2017 Buick Enclave

Chest Clip, Buckle, Harness problem

The vehicle was parked in a driveway in michigan on Sunday March 3, 2024. It was approximately 64 degrees. The car seat was safely positioned in the rear passenger side. Rear facing. The window was cracked about an inch so the vehicle was not too hot when leaving. After 4-5 hours I went to leave and the right upper seatbelt on the car seat had melted/burned to the point where it was broken into 2 pieces, which resulted in burns to the seat cushion as well. Thankfully there was not a child in the car seat at time of malfunction so the child was not put at imminent risk. Had the seatbelt not broken it could have snapped during an accident if it was melted and damanged. Graco was contacted and they responded stating this was a burn caused by myself.