2008 Buick LaCrosse Owner's Manual - Page 354

Used Replacement Wheels Tire Chains {CAUTION: Putting a used wheel on your vehicle is dangerous. You cannot know how it has been used or how far it has been driven. It could fail suddenly and cause a crash. If you have to replace a wheel, use a new GM original equipment wheel. {CAUTION: If your vehicle has P225/55R17 or P235/50R18 size tires, do not use tire chains, there is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in a crash. CAUTION: (Continued) 5-84