GM Faces Class Action Over Brake Vacuum Pump Failures in Chevrolet Equinox, GMC Terrain, and Buick Envision Joshua ValeroFebruary 19, 2026GM brake vacuum pump defect, Chevrolet Equinox brake failure, GMC Terrain brake assist problem, Buick Envision brake defect, GM brake assist lawsuit, Equinox vacuum pump failure, Terrain hard brake pedal, brake assist loss lawsuit, GM class action 2026, California lemon law GM brakes