Exterior LightsHyundai Elantra AD (2016-2020) Owners Manual: High Beam Assist (HBA) indicator light, Cruise Indicator Light
High Beam Assist (HBA) indicator light
This indicator light illuminates :
When the high-Beam is on with the light switch in the AUTO light position.
If your vehicle detects oncoming or preceding vehicles, the High Beam Assist
(HBA) system will switch the high beam to low beam automatical ...
Hyundai Elantra AD (2016-2020) Service Manual: Brake Booster Repair procedures
Brake Booster Operating Test
For simple checking of the brake booster operation, carry out the following tests.
1.
Run the engine for one or two minutes, and then stop it. If
the pedal depresses fully the first time but gradually becomes higher
when depressed succeeding times, the booster ...