Every time you apply the brakes, especially in emergency situations, your vehicle should remain in its lane. If you have to steer just to stay on course you may go into a skid. The causes: in particular due to problems on one side of the vehicle, e.g. the wrong brake pads, worn, oily or glazed brake pads, worn or damaged brake discs or drums, pistons that are rusty and can't move or that are difficult to move in the wheel cylinder or disc brakes. Immediately take your vehicle immediately to a specialist workshop or ATE BrakeCenter to find the cause of the problem. And use Original ATE brake parts to repair the fault.