NHTSA Complaint #11508350 — 2021 TOYOTA RAV4

I purchased car in 12/20. The car has a 14.5 gal sized tank, and gets avg 42 mpg -calculated by miles driven to empty divided by gas pumped when empty- as well as on dashboard display. Since purchase the car registers empty 150 or more miles sooner than the 560 dashboard estimate and than 14.5*42 mpg. I am only able to fill less than 11 gallons when the fuel Guage reads empty with less than 20 miles remaining. The service dept assures me the car is able to drive 560 on a full tank, as the fuel Guage and miles-to-empty ignore a "buffer " of several gallons in the tank. It is unsafe to drive over 150 miles with the car registering no miles remaining. It is unsafe to plan a trip based on dashboard or tank size/gallons mileage, where I could run out of gas in an unsafe region.