Cadillac SRX Second Generation Forum - 2010+ Discussion, Cargo door latch spring loaded flap door fell off (in) in Cadillac SRX Forums; Well this is annoying. So, this is the little plastic spring loaded door that closes out around the rear hatch ...
Cargo door latch spring loaded flap door fell off (in)
Well this is annoying. So, this is the little plastic spring loaded door that closes out around the rear hatch latch, bottom center of the door opening. After I pulled the trim off to see if I could just snap it back on I found that making two small cuts in the plastic where the spring rests allowed the spring to help hold the door in place so it doesn't happen again.
To get the whole trim piece off you have to loosen the two end and left and right mid cargo rail screws (if installed) and unscrew two long plastic (square drive) screws at each corner of the trim piece. There are also 6 push type trim snaps that just pop loose. Once off, you can flop the whole piece over and reinstall the spring loaded door.
When we bought our 2011 SRX (used), the trunk latch flap always stayed down. The dealer replaced it under warranty, which was nice because they replaced the entire panel with the metal skid plates (which were scratched to hell by the previous owner). After a year it is starting to get weak again and doesn't come back up all the way. I'll have to see if I can find those instructions too.
I found this, which may be what you and I are looking for: