The contact owns a 2015 Ford Explorer. The contact stated that occasionally while at a complete stop or while depressing the brake pedal, the vehicle lurched forward or experienced unintended acceleration. There was no warning light illuminated. The contact had taken the vehicle to a dealer and was provided an estimate for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 89,000.