TSB: Some 2018 ? 2020 model year North American Produced (NAP) Camry, 2018 ? 2019 model year Japan produced Camry, 2018 ? 2020 model year Camry hybrid, 2019 ? 2020 model year Avalon, and 2019 ? 2020 model year Avalon hybrid vehicles may exhibit a condition in which the fuel filler door is difficult to open when the release button is pressed. This may be caused by the fuel filler door spring not having sufficient stroke to push the fuel filler door to the open position. The fuel filler door spring has been updated. Follow the Repair Procedure in this bulletin to address this condition.