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: Passenger Airbag (PAB) Module Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three minutes before beginning work.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the passenger airbag mounting bolts.
4.
Disconnect the passenger airbag connector ...
Hyundai Elantra AD (2016-2020) Service Manual: Rear Body Body Repair
* These dimensions indicated in this figure are actual-measurement dimensions. [ Unit : mm (inch) ]
Side outer panel rear cornerSide outer panel rear cornerSide outer panel rear cornerRear combination lamp mounting hole (O8)Rear bumper mounting hole (8.5X8.5)Rear bumper mounting hole (14X16 ...