To activateTo activate  - Cruise control - Starting and driving - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

1. With the ignition switch in the “ON” position, press the “ON OFF” switch (A) to turn on the cruise control. The “CRUISE” indication lamp in the meter cluster will come on.

Note

► If the cruise control is on when the ignition switch is turned to the “LOCK” Note

► If the cruise control is on when the ignition switch is turned to the “LOCK” or “ACC” position, cruise control will be on automatically the next time you start the engine. The “CRUISE” indication lamp will also be on.
► If the battery voltage is insufficient, the memory data for the cruise control may be erased.
As a result, the “CRUISE” indication lamp may not come on when you restart the engine.
If this happens, press the “ON OFF” switch once again to turn on the cruise control.

2. Confirm that the Twin Clutch SST control mode is set to “NORMAL” (on vehicles equipped with Twin Clutch SST). Refer to “Twin Clutch SST control mode”.

► The cruising speed cannot be set when the Twin Clutch SST control mode is set Note

► The cruising speed cannot be set when the Twin Clutch SST control mode is set to “SPORT” mode.

3. Accelerate or decelerate to your desired speed, then press and release the “COAST SET” switch (B) when the “CRUISE” indication lamp is illuminated. The vehicle will then maintain the desired speed.

Note

► When you release the “COAST SET” switch, the vehicle speed will be set. Note

► When you release the “COAST SET” switch, the vehicle speed will be set.

    See also:

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    Except for vehicles for Russia, Kazakhstan and Ukraine, this indicator will be displayed when fuel-efficient driving is achieved. ...

    What to do if the engine speed becomes unstable after the battery is replaced
    If the engine speed becomes unstable after the battery is replaced, reset the engine using the following method: 1. Stop the vehicle in a safe place. 2. Place the gearshift lever (manual transmissi ...