GM Hard Brake Pedal Investigation Expands to 1.1 Million Vehicles Joshua ValeroAugust 27, 2026GM brake problems, GM hard brake pedal, GM eBoost failure, GM brake investigation, Cadillac LYRIQ brake problems, Chevrolet brake problems, GMC brake problems, Buick brake problems, Honda Prologue brake problems, Acura ZDX brake problems, NHTSA GM investigation, California lemon law, GM lemon law