NHTSA Complaint #11716680 — 2018 CHRYSLER PACIFICA

I am experiencing a serious brake safety issue involving the brake booster on my Chrysler Pacifica. When braking, the pedal becomes extremely hard, pushes back against my foot, and requires excessive force to stop the vehicle. In some instances, when I am at a complete stop, the brake pedal pushes upward and the vehicle begins to move forward on its own. This issue causes a loss of braking assist and significantly increases stopping distance, creating an unsafe driving condition and risk of collision. The problem occurs intermittently but has worsened over time. Chrysler/Stellantis has acknowledged this brake booster defect by issuing a warranty extension; however, they have not issued a safety recall. I was denied repair coverage solely because my vehicle is now outside the extended warranty period, despite the fact that the defect is known and directly affects braking performance and vehicle control. This is not normal wear and tear. It is a failure of the brake assist system that compromises safe operation of the vehicle, whether driving at speed or stopped in traffic. The condition presents a clear safety risk to occupants and others on the road. I am submitting this complaint so NHTSA can investigate whether this defect warrants a formal safety recall.