Table 1 shows one common chest clip, buckle, harness related problems of the 2021 Volvo XC90.
| Problem Category | Number of Problems |
|---|---|
| Chest Clip, Buckle, Harness problems |
I am reporting a serious safety defect involving a nuna rava child safety seat. The harness straps loosened on their own without the harness release button being pressed or otherwise intentionally operated. This occurred while the child was secured in the car seat. This malfunction presents a serious risk to child safety. If the harness loosens during vehicle travel, particularly in a sudden stop or crash, the child may not be properly restrained. In a crash, the child could potentially move out of the appropriate restraint position, be partially or completely ejected from the car seat, or suffer serious injury. The component involved is the harness restraint system, specifically the mechanism or component that is supposed to maintain the harness straps at the properly tightened position. The car seat is still in my possession and is available for inspection. I also have video footage of my child in the carseat while it was malfunctioning. I reported this safety concern to nuna, the manufacturer, but nuna has not responded to my safety complaint or inspected the car seat. I am requesting that NHTSA investigate this issue because an unintended loosening of the harness can compromise the effectiveness of the child restraint and potentially place a child at serious risk of injury or death in a crash.
The harness can be loosened by lightly pulling on it without use of the harness release button. The harness is not holding the child in place and the car seat is therefore unsafe for use.