Even though your vehicle is equipped with the OCS, never install a child restraint in the front passenger's seat. An inflating air bag can forcefully strike a child or child restraint resulting in serious or fatal injury.
WARNING
Hyundai Elantra AD (2016-2020) Owners Manual: All Season Tires, Summer Tires, Snow Tires
All Season Tires
HYUNDAI specifies all season tires on some models to provide good performance
for use all year round, including snowy and icy road conditions. All season tires
are identified by ALL SEASON and/or M+S (Mud and Snow) on the tire sidewall. Snow
tires have better snow traction th ...
Hyundai Elantra AD (2016-2020) Service Manual: CVVT Oil Control Valve (OCV) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the OCV connector.
3.
Measure resistance between the OCV terminals 1 and 2.
4.
Check that the resistance is within the specification.
Specification : Refer to "Specification"
Removal
1.
Turn the ignition switch OF ...