Headlight Warning Light

This warning light illuminates:
This warning light illuminates if one of the exterior bulbs (headlamp, DRL, turn signal lamp, stop lamp, etc.) is not operating properly. One of the bulbs may need to be replaced. If the vehicle is equipped with LED headlamps, have the vehicle inspected by an authorized HYUNDAI dealer.
Information
When replacing the bulb, use the same wattage bulb.
For more details, refer to "BULB WATTAGE" in chapter 8.
LED Headlight Warning Light

This warning light illuminates:
This warning light blinks:
When there is a malfunction with a LED headlight related part.
If this occurs, have the vehicle inspected by an authorized HYUNDAI dealer.
NOTICE
Continuous driving with the LED Headlight Warning Light on or blinking can reduce LED headlight life.
Forward Collision Avoidance Assist Warning Light, Lane Keeping Assist (LKA)
System Indicator Light
Master, Door Ajar, Trunk Open, Hood Open Warning Lights LightHyundai Elantra AD (2016-2020) Service Manual: Troubleshooting
Troubleshooting
•
The battery must be in good condition and fully charged for this troubleshooting.
...
Hyundai Elantra AD (2016-2020) Owners Manual: Good Braking Practices
WARNING
Whenever leaving the vehicle or parking, always come to a complete stop and
continue to depress the brake pedal. Move the shift lever into the 1st gear (for
manual transmission vehicle) or P (Park, for Intelligent Variable Transmission (IVT)/
dual clutch transmission vehicle) position ...