Checking the Engine Oil Level
1. Follow all of the oil manufacturer’s precautions.
2. Be sure the vehicle is on the level ground in P (Park) with the parking brake set. If possible, block the wheels.
3. Turn the engine on and allow the engine to reach normal operating temperature.
4. Turn the engine off and wait about five minutes for the oil to return to the oil pan.
5. Pull the dipstick out, wipe it clean, and re-insert it fully.

â– 1.6 T-GDI

6. Pull the dipstick out again and check the level. The level should be between F and L.
7. If it is near or at L, add enough oil to bring the level to F.
NOTICE
To prevent damage to your engine:

â– 1.6 T-GDI

â– 2.0 MPI
NOTICE
Use only the specified engine oil (refer to "Recommended Lubricants and Capacities" in chapter 8).

Have engine oil and filter changed by an authorized HYUNDAI dealer according to the Maintenance Schedule at the beginning of this chapter.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine oil contains chemicals known to the State of California to cause cancer, birth defects and reproductive harm. Used engine oil may cause irritation or cancer of the skin if left in contact with the skin for prolonged periods of time. Always protect your skin by washing your hands thoroughly with soap and warm water as soon as possible after handling used oil.
Explanation of Scheduled Maintenance ItemsHyundai Elantra AD (2016-2020) Service Manual: Power Window Switch Repair procedures
Inspection
[Driver Power Window Switch]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver door trim.
(Refer to Body - "Front Door Trim")
3.
Disconnect the power mirror switch connector from the door trim.
4.
Check for continuity between the terminals in each swi ...
Hyundai Elantra AD (2016-2020) Service Manual: Engine Coolant Temperature Sensor (ECTS) Specifications
Specification
TemperatureResistance (k?)°C°F-40-4048.14-20-414.13 ~ 16.830325.7920682.31 ~ 2.59401041.15601400.59801760.32
...