Some things to check on your new 2012 378TS.
Test and make sure all the slides go in and out evenly and don't be scared to to it a few times. And go outside and see if they close flush with side.


Make sure the DVD plays DVD;s to TV. Mine didn't

Check all wooden draw faces for cracks horizontally

Make sure the Hot water heater us not pushing its exterior side panel out like others have had happen

Use all the water you can and check for leaks under counters. Shower, sinks.

You should have 2 sets of keys
The big round key is for the engine compartment and the batteries under the steps.
Also check under the step to see if any of the hydralic lines have bubbles or are leaking when using the slides or levellers.

Check the front winshield for chips or cracks along the bottom edge from installing


Good luck