You may have a (small) factory installed inverter if you have a 120 volt TV.
Don’t think inverters were common in 2010. Our 2012 has a 12 volt TV and an RV (ammonia absorption) fridge, and came without an inverter. I have since added a small one - a 400 watt pure sine wave one - for convenience, like using a soldering iron, e-bike battery chargers, etc. Your previous owner may similarly have added one, as mentioned above.
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JLeising
2012 Solera "S"
Calif SF Bay Area
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