As for your camera not working. I don't have the Nav package, therefore no back up camera. I can though, tell you that accessories start to shut down if your battery is getting old and weak. I know because I had some things shut down on me when my battery was no longer taking a full charge. A new battery and everything works as it should. If this is the original battery on a 2013, you may want to look at replacing it before other things start to shut down in order to conserve battery power to start and run the car. In addition, replacing the battery (in the trunk, under the spare) requires that you reset the battery to let the power management system know that a new battery has been installed and therefore full charging can take place.

Hi Rick. It's Louie. I see you've posted some questions but haven't gotten many responses. Most people will just lurk and few will offer useful advise. As for the pressure in the tires, I never gave it much thought but to keep them in the mid 30's. If you fill them too high, the ride becomes even firmer and also makes it more likely of a blow out or bent rim if you hit a nasty pothole.