General Safety Information and CautionHyundai Elantra AD (2016-2020) Owners Manual: Safe Exit Assist (SEA) System
Once the system decides it is dangerous for a passenger to open a car door by
sensing the approaching of a car from behind when the person is opening the door,
the warning message "Watch for traffic" appears and the alarming sound will continue
for five seconds.
If a car approachi ...
Hyundai Elantra AD (2016-2020) 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 Catalytic
Converter. It varies in accordance with the air/fuel ratio.
The sensor must be hot in order to operate normally. To keep
it hot, the sensor has a heater ...