Disc Brakes Wear Indicator
When your brake pads are worn and new pads are required, you will hear a high pitched warning sound from your front or rear brakes. You may hear this sound come and go or it may occur whenever you depress the brake pedal.
Note that some driving conditions or climates may cause a brake squeal when you first apply (or lightly apply) the brakes. This is normal and does not indicate a problem with your brakes.
NOTICE
To avoid costly brake repairs, do not continue to drive with worn brake pads.
Information
Always replace brake pads as complete front or rear axle sets.
Rear Drum Brakes
Your rear drum brakes do not have wear indicators. Therefore, have the rear brake linings inspected if you hear a rear brake rubbing noise. Also have your rear brakes inspected each time you change or rotate your tires and when you have the front brakes replaced.
Hyundai Elantra AD (2016-2020) Service Manual: Smart Cruise Control Unit Description and Operation
Description
The smart cruise control unit is installed on the front of
the chassis.A radar sensor is embedded in the front section of the unit.
This sensor detects vehicles and objects in front of the vehicle. The
alarm goes off when the vehicle deviates from the horizontal and
vertical a ...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. Sunroof2. Sunroof switch3. Sunroof motor & controller
...