On my Eagle, the access for the manual overrides for the slides are underneath. (I have 3) There will be areas on the underbelly that have what look like patches screwed in, that's where the motors for your slides are. It will be on the side opposite the slide, 1 for each slide. If you look in your Lippert documentation it shows how to operate the override. If you didn't get a manual for Lippert, you can download it from their website, they also have videos on how to do it.
2016 314 TSBH
2005 Chevrolet Suburban 2500 4WD