Damper Clutch Operating Range

As all the conditions below are satisfied, it locks up. The cross point of throttle opening and turbine RPM is within shadowed area.

• D range (more than 2nd speed), but damper clutch operating in 2nd speed, the ATF temperature must be higher than 125 °C.
• The TCM does not control under N --> D or N --> R.
• Oil temperature is above 50°C under full lock-up.
• Oil temperature is above 70°C under minor slip.
• The system is not under Fail - Safe (3rd gear hold) condition.
  Fig 1: Damper Clutch Operating Range Graph

  Courtesy of HYUNDAI MOTOR CO.

  Uphill (above 5%) longer than 1.5sec.: Reducing speed Lock-up During this control, the vehicle is running uphill (less than 2.5%) for 1 SEC., the partial lock-up control is functioned again.