Opening the fuel filler door
The fuel filler door must be opened from inside the vehicle by pushing the fuel filler door opener button.
1. Turn the engine off.
2. Push the fuel filler door opener button.
3. Pull the fuel filler door (1) out to fully open.
4. To remove the fuel tank cap (2), turn it counterclockwise. You may hear a hissing noise as the pressure inside the tank equalizes.
5. Place the cap on the fuel filler door.
Information
If the fuel filler door does not open because ice has formed around it, tap lightly or push on the door to break the ice and release the door. Do not pry on the door. If necessary, spray around the door with an approved deicer fluid (do not use radiator antifreeze) or move the vehicle to a warm place and allow the ice to melt.
Hyundai Sonata LF 2014-2019 Service Manual: Ambient Temperature Sensor (ATS) Description and Operation
Description
Ambient Temperature Sensor (ATS) is installed on the
front-end module and senses the ambient temperature. ECM receives not
only the intake air temperatue but also the ambient air temperature
informations at the same time to control the intake air quantity
precisely provided th ...
Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Component Location
1. Cowl top cover
...