Hyundai Elantra: Driving Your Vehicle / Braking System

Good Driving Practices

Never move the shift lever from P (Park) or N (Neutral) to any other position with the accelerator pedal depressed. Never move the shift lever into P (Park) when the vehicle is in motion. B ...

Power Brakes

Your vehicle has power-assisted brakes that adjust automatically through normal usage. If the engine is not running or is turned off while driving, the power assist for the brakes will not work. ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Power Window Switch Schematic Diagrams
Circuit Diagram Driver Power Window Switch [Driver Power Window Switch (Safety)] [Driver Power Window Switch (Auto Down)] Assist Power Window Switch Rear Power Window Switch [Rear Power Window Switch (Manual)] [Rear Power Window Switch (Manual + Seat Heater)] ...

Hyundai Elantra AD (2016-2020) Service Manual: Photo Sensor Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and reduce with lower intensive light. 1. Auto light signal2. Auto ...