Wheel alignment and balancing are important for safety and maximum tread wear from your tires. Inspect your tires at least once a month for signs of uneven wear or damage (i.e. cuts, cracks, splits, penetrations, bulges, and impacts.) Uneven wear patterns may be caused by improper inflation pressure, misalignment, improper balance or suspension neglect. If not corrected, further tire damage will occur. These conditions shorten the life of your tires and may result in loss of vehicle control and serious personal injury.
You should have your alignment checked periodically as specified by the vehicle owner's manual or whenever you have an indication of trouble such as pulling or vibration.