The blinking green arrows on the instrument panel show the direction indicated by the turn signals. If the arrow comes on but does not blink, blinks more rapidly than normal, or does not illuminate at all, a malfunction in the turn signal system is indicated. Your dealer should be consulted for repairs.
Kia Cee'd JD Service Manual: Trailing Arm Repair procedures
Replacement
1.
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the rear wheel and tire (A) from rear hub.
Tightening torque:
88.2 ~ 1 ...
Kia Cee'd JD Service Manual: Turn Signal Lamp Repair procedures
Removal
Door Mirror Turn Signal Lamp
1.
Disconnect the negative (-) battery terminal.
2.
Remove the mirror (A) from the mirror holder.
...