Cadillac 2015 SRX Owner's Manual page 275

10-30 Vehicle Care
2. Remove the push pin (1) on the
tail lamp cover (2).
3. Remove the tail lamp cover from
the lamp assembly by pulling
rearward from the top to
unfasten the snap tabs.
4. Remove the two screws from the
taillamp assembly.
5. Pull the taillamp assembly
straight back to remove.
6. Turn the indicator lamp bulb
socket anticlockwise to remove it
from the tail lamp assembly.
7. Pull the bulb straight out from
the socket.
8. Press a new bulb into the
socket, insert it into the tail lamp
assembly, and turn the bulb
socket clockwise until it clicks.
9. Reinstall the taillamp assembly
and tighten the screws.
10. Reinstall the taillamp cover by
snapping it into place.