To signal a turn, push down on the lever for a left turn or up for a right turn in position (A).
If an indicator stays on and does not flash or if it flashes abnormally, one of the turn signal bulbs may be burned out and will require replacement.
Onetouch turn signal function
To activate the One Touch Turn Signal function, push the turn signal lever up or down to position (B) and then release it.
The lane change signals will blink 3, 5 or 7 times.
You can activate or deactivate the One Touch Turn Signal function or choose the number of blinking (3, 5, or 7) from the User Settings Mode (Light) on the LCD display (if equipped with supervision cluster).
For more details, refer to the "LCD Display" section in this chapter.
Hyundai Elantra AD (2016-2020) Service Manual: Alignment Repair procedures
Front wheel alignment
•
When using a commercially available computerized wheel
alignment equipment to inspect the front wheel alignment, always
position the vehicle on a level surface with the front wheels facing
straight ahead.
•
Prior to inspection, make ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
3.
Run the engine at idle, then put a finger over the open end
of the PCV valve and make sure that intake manifold vacuum can be felt.
  ...