Cadillac CTS Owner's Manual page 350

5 Stop Lamps
(Export Only)
6 Door Lock
7 Door Unlock
8 Fuel Door Unlock
(Export Only)
9 Right Position Lamp
(Export Only)
10 Console/Auxiliary
Power Outlet
11 Sedan Trunk
Release/Coupe
Rear Fog
(Export Only)
12 Side Marker Lamps
13 Left Position Lamps
14 Right Position Lamp
15 Left Position Lamp
16 Door Lock
17 Console/Auxiliary
Power Outlet
18 Rear Fog/Export
Body Control
Module
(Export Only)
19 Trunk Release
20 Easy Entry Seats
(Coupe Only)
21 Sunroof