ACD (Active centre differential systemACD (Active centre differential system  - Starting and driving - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

The ACD is a system that improves acceleration performance and straight-ahead stability by regulating the differential limiting action and power drive distribution of the centre differential.

► Do not over-rely on the ACD. Even the ACD cannot prevent the natural laws Caution

► Do not over-rely on the ACD. Even the ACD cannot prevent the natural laws of physics from acting on the vehicle. This system, like any other system, has limits and cannot help you to maintain traction and control of the vehicle in all circumstances.
Reckless driving may lead to accidents.
It is the driver’s responsibility to drive carefully. This means taking into account the traffic, road and environmental conditions.
► Be sure to use tyres that are the same specified size, type, and brand, and have no difference in the amount of wear for all four wheels. Otherwise, the ACD may not work properly

► If the parking brake lever is pulled up while the vehicle is moving, the centre Note

► If the parking brake lever is pulled up while the vehicle is moving, the centre differential is designed to switch to a free state condition which will allow the rear wheel to lock easier.

See also:

Interrupt display screen (when the ignition switch or the operation mode is ON)
Warning display When there is information to be announced, such as a system fault, a sound is emitted and the information screen switches to the warning display screen. Refer to the warning list a ...

Spare wheel information
Check the air pressure of the spare tyre frequently and make sure it is ready for emergency use at any time. Maintaining the spare wheel at the highest specified air pressure will ensure that it ...

Retracting and extending the mirrors using the mirror retractor switch
With the ignition switch in the “ON” or “ACC” position, push the mirror retractor switch to retract the mirrors. Push it again to extend the mirrors to their original positions. After pla ...