QUOTE(chocobo_2005 @ Apr 7 2012, 11:18 PM)
US version got active ECO mode, which you can switch on/off the ECO. It does affect performance and acceleration of the car.
you are right bro
This is taken directly from the US version of the 2012 Elantra user manual (which I assume is the same as ours)
"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 Active ECO is operating."
"Limitations 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 system will be limited until engine performance becomes normal.
When driving up a hill: The system will be limited to gain power when driving uphill because engine torque is restricted.
When using sports mode: The system will be limited according to the shift location.
When the accelerator pedal is deeply pressed for a few seconds: The system will be limited, judging that the driver wants to speed up."