Other information:
Hyundai Sonata LF 2014-2019 Owners Manual: Floor Mat Anchor(s)
ALWAYS use the Floor Mat Anchors to attach the front floor mats to the vehicle.
The anchors on the front floor carpet keep the floor mats from sliding forward.
WARNING
The following must be observed when installing ANY floor mat to the vehicle.
Ensure that the floor mats are securely attached to ...
Hyundai Sonata LF 2014-2019 Service Manual: Water pump Repair procedures
Removal
1.
Loosen the drain plug (A), and drain the engine coolant. Remove the radiator cap to drain with speed.
System is under high pressure when the engine is hot.To avoid
danger of releasing scalding engine coolant, remove the cap only when
the engine is cool.
...