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: Compressor oil Repair procedures
Oil Specification 1. The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compress ...

Hyundai Elantra AD (2016-2020) Owners Manual: Inside Rearview Mirror
Before driving your vehicle, check to see that your inside rearview mirror is properly positioned. Adjust the rearview mirror so that the view through the rear window is properly centered. WARNING Make sure your line of sight is not obstructed. Do not place objects in the rear seat, cargo ar ...