When Driving
The ESC OFF mode should only be used briefly to help free the vehicle if stuck in snow or mud by temporarily stopping operation of the ESC to maintain wheel torque.
To turn ESC off while driving, press the ESC OFF button while driving on a flat road surface.
NOTICE
To prevent damage to the transmission:
Information
Turning the ESC off does not affect ABS or standard brake system operation.
Hyundai Elantra AD (2016-2020) Service Manual: Intake Manifold Components and Components Location
Components
1. Intake manifold assembly 2. Intake manifold gasket3. Electronic throttle body4. Intake manifold stay5. Variable intake solenoid (VIS) actuator6. VCM motor
...
Hyundai Elantra AD (2016-2020) Service Manual: Brake Booster Repair procedures
Brake Booster Operating Test
For simple checking of the brake booster operation, carry out the following tests.
1.
Run the engine for one or two minutes, and then stop it. If
the pedal depresses fully the first time but gradually becomes higher
when depressed succeeding times, the booster ...