To recline the seatbackTo recline the seatback  - Front seat - Seat and seat belts - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

See also:

Lamp monitor buzzer
[When the engine was started using the key] If the driver’s door is opened when the key is in the “LOCK” or “ACC” position or removed from the ignition switch while the lamps are on, a b ...

To operate without using the keyless operation function
Emergency key The emergency key is built into the keyless operation key. If the keyless operation function cannot be used, for example because the keyless operation key battery has worn out or th ...

Manual type
In order to recline the seatback, lean forward slightly, pull the seatback lock lever up, and then lean backward to the desired position and release the lever. The seatback will lock in that positi ...