Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Heated Oxygen Sensor (HO2S) Description and Operation
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina
and is installed both upstream and downstream of the Manifold Catalytic
Converter. The sensor output voltage varies in accordance with the
air/fuel ratio.
The sensor must be hot in order to operate normally. To keep ...
Hyundai Sonata LF 2014-2019 Owners Manual: 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. You can still stop your vehicle by applying greater
force to the brake pedal than typical. The stoppin ...