Make this adjustment before you start driving and while the day/night lever is in the day position.
Pull the day/night lever towards you to reduce glare from the headlights of the vehicles behind you during night driving.
Remember that you lose some rearview clarity in the night position.
Hyundai Elantra AD (2016-2020) Service Manual: Brake Booster Components and Components Location
Components
1. Reservoir cap2. Reservoir3. Booster4. Master cylinder 5. Booster pressure sensor
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Hyundai Elantra AD (2016-2020) Service Manual: Variable Charge Motion Actuator (VCMA) Specifications
Specification
Motor
ItemSpecificationCoil Resistance (?)3.4 ~ 4.4 [20°C(68°F)]
Position sensor
ItemSpecificationCoil Resistance (k?)3.44 ~ 5.16 [20°C(68°F)]
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