Cadillac CTS - Manual (Page 427)

Removing the Flat Tire and
Installing the Spare Tire (CTS Only) 1. Loosen the wheel nuts, but do not remove
them yet, using the wheel 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.
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