Hyundai Elantra AD (2016-2020) Owners Manual: Air bag inflation conditions
Front air bags
Front air bags and the driver’s knee air bag are designed to inflate in a frontal
collision depending on the the severity of impact of the front collision.
Side and curtain air bags
Side and curtain air bags are designed to inflate when an impact is detected
by side col ...
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 ...