Cadillac 2011 CTS Coupe Owner's Manual page 421

A. Wing Nut
B. Spare Tire
C. Jack
D. Subwoofer
E. Wheel Wrench
F. Extension
G. Cable
To access the spare tire and jacking
equipment:
1. Remove the spare tire cover.
2. Remove the subwoofer (D),
if the vehicle has one.
To remove the subwoofer:
2.1. Turn the nut (A)
counterclockwise to
remove.
2.2. Disconnect the
connector wire.
2.3. Pull the subwoofer (D) up to
remove it from the stow rod.
3. Remove the spare tire (B) and
place it next to the flat tire.
4. Remove the jack (C), wheel
wrench (E), and extension (F).
To remove the jack:
1. Remove the retainer nut (A).
2. Remove the jack stowage
bracket (B).
3. Slide the jack (C) forward to
remove it from the floor storage
bracket.
1. Do a safety check before
proceeding. See
2. Use the wrench to loosen all
the wheel nuts. Do not remove
them yet.