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: Special Service Tools
Special Service Tools
Tool (Number and Name)IllustrationApplicationRKE Battery Checker(09954-2P100)Measuring the RKE battery voltageCorrection jig for LDWS or LKAS(09890-3V100)Correction of LDWS (Lane Departure Warning System) or LKAS (Lane keeping assist system)
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Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Refrigerant System Service Basics
Refrigerant Recovery
Use only service equipment that is U.L-listed and is
certified to meet the requirements of SAE J2210 to remove
HFC-134a(R-134a) from the air conditioning system.
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Air conditioning refrigerant or lubricant va ...