"Front marker light left" & "right" messages = the front left or right side marker lamp is malfunctioning (owner's manual).... Does this happen to anyone ??? where are the front marker lamps locations ??? Do we just replace the lamp ???

 

The yellow lamps on the sides of the front bumper. check the contacts for corrosion. If ok, replace bulbs

 

If you check your front marker lights (yellow lights seen from the side of the car) one or both of them are probably burned out. Since you have the manual, follow the directions for replacing the bulbs. From your description both of them are burned out, which is not uncommon. Often one bulb goes and others doing the same function quickly follow.