The Hill-Start Assist Control (HAC) helps prevent the vehicle from rolling backwards when starting a vehicle from a stop on a hill. The system operates the brakes automatically for approximately 2 seconds and releases the brake after 2 seconds or when the accelerator pedal is depressed.
WARNING
Always be ready to depress the accelerator pedal when starting off on a incline. The HAC activates only for approximately 2 seconds.
NOTICE
Hyundai Elantra AD (2016-2020) Service Manual: Transaxle Oil Temperature Sensor Description and Operation
Description
•
Transaxle oil temperature sensor monitors the automatic transaxle fluid's temperature and conveys the readings to TCM.
•
It is an NTC (Negative Thermal Coefficient) sensor whose
resistance has an inversely proportional relationship with the
temperature level.
†...
Hyundai Elantra AD (2016-2020) Service Manual: Coolant Repair procedures
Refilling And Bleeding
•
Never remove the radiator cap when the engine is hot. Serious
scalding could be caused by hot fluid under high pressure escaping from
the radiator
•
When pouring engine coolant, be sure to shut the relay box
...