2004 Pontiac Montana Owner's Manual - Page 428

Removing the Flat Tire and Installing the Spare Tire 1. Loosen the wheel nuts - but do not remove them - using the folding wrench. Turn the handle about 180 degrees, then flip the handle back to the starting position. This avoids taking the wrench off the lug nut for each turn. 2. Near each wheel, there is a notch in the vehicle's body. Position the jack and raise the jack head until it fits firmly into the notch in the vehicle's frame nearest the flat tire. For wheels with a wheel lock key, use the wheel lock key between the lock nut and folding wrench. The key is supplied in the front passenger door pocket. Notice: If your vehicle has wheel locks and you use an impact wrench to remove the wheel nuts, you could damage the lock nut or wheel lock key. Do not use an impact wrench to remove the wheel nuts if your vehicle has wheel locks. Notice: If you use a jack to raise the vehicle without positioning it correctly, you could damage your vehicle. When raising your vehicle on a jack, avoid contact with the rear axle control arms. Do not raise the vehicle yet. Put the compact spare tire near you. 5-86