Tl* the contact owns a 2009 jaguar xk. while driving 45 mph, the contact had to exert force to the brake pedal in order to stop the vehicle. also, while the accelerator pedal was depressed, the vehicle took three seconds to accelerate. there were no warning indicators illuminated. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the failures. the approximate failure mileage was 53,000. the vin was unavailable.