Push the OFF button of the front to turn off the air climate control system. You can still operate the mode and air intake buttons as long as the ignition switch is in the ON position.
Hyundai Elantra AD (2016-2020) Service Manual: Drive Belt Repair procedures
Removal
1.
Remove the drive belt.
(1)
Using the wrench, turning the drive belt tensioner (A) counterclockwise.
(2)
Disconnect the drive belt (A).
(3)
Remove the drive belt tensioner (A) and then remove the drive belt (B).
Inspection
1.
Check belt for maintenance and abnormal wea ...
Hyundai Elantra AD (2016-2020) Service Manual: Compressor Description and Operation
Description
The compressor is the power unit of the A/C system.
It is located on the side of engine block and driven by a V-belt of the engine.
The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas.
Variable Swash Plat ...