Buick 2006 LaCrosse Owner's Manual page 371

2. Use the wheel wrench to loosen the plastic wheel
nut caps, if equipped, in a counterclockwise
direction.
If needed, finish loosening them by hand. The nut
caps will not come off of the wheel cover.
3. Use the flat end of the wheel wrench and pry along
the edge of the cover until it comes off. Pull off the
wheel cover and set it aside.
The edge of the wheel cover could be sharp, so do
not try to remove the cover with your bare hands.
Do not drop the cap or lay it face down, as it could
become scratched or damaged.
If the vehicle has aluminum wheels and wheel center
caps, the wheel nuts are hidden behind the center cap.
Pry off the center cap by using the flat end of the
wheel wrench at the notch.
Do not drop the cap or lay it facedown, as it could
become scratched or damaged.
Once you have removed the wheel cover or center
cap, use the following procedure to remove the flat tire
and install the spare tire.
1. Place the wheel wrench securely over the wheel
nut. Turn the wheel wrench counterclockwise
to loosen all the wheel nuts, but do no remove
them yet.
2. Turn the jack handle clockwise to raise the jack
lift head.
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