Tiffin1 
2016 Toyota Highlander SUV XLE 4dr SUV AWD (3.5L 6cyl 6A)
Just one Quirk
 Great SUV, fantastic to drive, insulates you from the road and traffic noise. Just one concerning trait, heard this strange buzzing noise coming from underneath the rear end about 5 hours after it was turned off and parked in the garage. No idea what it was so Googled it; "This is the sound of a fuel evaporation leakage check and, it does not indicate a malfunction" was the answer in several searches. Sure enough it is in the Owner's manual as well. Would have been nice if the dealership would have pointed this out when they were explaining the other features at time of purchase.