2003 GMC Sierra 1500 Pickup Owner's Manual - Page 457

Tire Chains I If your vehicle has dual wheels or P265/75R16 or LT265n5R16 size tires, don't use tire chains. They can damage your vehicle because there's not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damageto 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. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination and road conditions. Follow that manufacturer's instructions. To help avoid damage to yourvehicle, drive slowly, readjust or remove the device if it's contacting your vehicle, and don't spin your wheels. If you do find traction devices that will fit, install them on the rear tires." Nofice: If your vehicle does not have dual wheels and is equipped with a tire size other than P265R5R16, or LT65D5R16, use tire chains only where legal and only when you must. Use chains that are the proper size for your tires. Install them o the tires of the rear axle. Don't use chains on the tires of the frontaxle. Tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer's instructions. If you canhear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle. 5-82