The contact owns a 2018 Honda Odyssey. The contact stated that while driving approximately 35 MPH, the rear end of the vehicle unintendedly lowered. The contact stated that while driving over a bump or depression in the roadway, the vehicle was bouncing. There was no warnings light illuminated. The contact had taken the vehicle to a local dealer where the vehicle was diagnosed, and it was determined that the rear shocks and parts of the rear suspension had failed and needed to be replaced. The vehicle was not repaired. The contact stated that several months prior to the failure, the front shocks and the steering arms were replaced. The manufacturer was not informed of the failure. The failure mileage was approximately 107,000.