For proper maintenance, safety, and maximum fuel economy, you must always maintain recommended tire inflation pressures and stay within the load limits and weight distribution recommended for your vehicle.

All specifications (sizes and pressures) can be found on a label attached to the driver's side center pillar.
Tires and Wheels
Recommended Cold Tire Inflation PressuresHyundai Elantra AD (2016-2020) Service Manual: Smart Cruise Control Unit Repair procedures
Removal
1.
Remove the bumper.
(Refer to Body - "Front Bumper")
2.
Disconnect the smart cruise control unit connector (A).
3.
Remove the smart cruise control unit assembly (B) from vehicle after loosening mounting bolts.
Installation
1.
Install in the reverse order of removal. ...
Hyundai Elantra AD (2016-2020) Service Manual: Specifications
Specifications
Item SpecificationsTransaxle type A6GF1-2Engine typeGasoline 2.0 MPI(Atkinson)Torque converter type3-element, 1-stage, 2-phase typeTorque converter sizeO236 mm (9.2913 in)Oil pump systemMechanical internal gear pumpFriction elementsClutch: 2EABrake: 3EAOWC: 1EAPlanetary gear3 ...