Hyundai Sonata: Active ECO operation

Active ECO helps improve fuel efficiency by controlling the engine and transaxle. But fuel-efficiency can be changed by the driver's driving habits and road conditions.
- When the Active ECO button is pressed the ECO indicator (green) will illuminate to show that the Active ECO is operating.
- When the Active ECO is activated, it does not turn off even though the engine is restarted again. To turn off the system, press the active ECO button again.
- If Active ECO is turned off, it will return to the normal mode.
Limitation of Active ECO operation
If the following conditions occur while Active ECO is operating, the system operation
is limited even though there is no change in the ECO indicator.
When the coolant temperature is low: The sys ...
See also:
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 ...
Head Lamps. Components and Components Location
Component
1. Head lamp assembly lens & housing
2. Head lamp (High) lamp
3. Dust cap
4. Socket
5. Turn signal/ Position lamp
6. Head lamp (Low) lamp
...
Key operations
(1) Master key (M)
Used to start the engine, lock and unlock the doors, lock and unlock the glove
box, and open the trunk.
(2) Sub key (S)
Used only to start the engine and lock and unlock the do ...

