My mechanic and I found the answer to this one by trial and error. First, pull out the instrument console. It's only a few screws but be careful because you don't have a lot of room to work. On the left side of the console, (in the back) between the speedometer and the edge of the console, you'll find a VERY small switch. Move it to another position (doesn't really matter which one) and the light should go out.
After my 1995 Montero turned 150,000 miles the
To reset the periodic maintenance required light on a 2011 Mitsubishi Montero Sport, turn the ignition key to the "ON" position without starting the engine. Press the gas pedal three times within ten seconds. After that, turn the ignition off, and the maintenance light should be reset. If it doesn't turn off, repeat the procedure.
To reset the periodic maintenance required light on a 2012 Mitsubishi Montero Sport, turn the ignition to the "ON" position without starting the engine. Press the accelerator pedal three times within 10 seconds. The maintenance light should turn off, indicating that the reset was successful. If it doesn't, repeat the process or consult the owner's manual for further instructions.
I changed the battery and voila' - no more light.
Read your owner's manual.
disconnect the battery for a couple of minutes, if it comes back on after you drive the computer is getting an error code from the engine check the codes to see whats causing it
To reset the maintenance required light on a 1995 Mitsubishi truck, first turn the ignition key to the "ON" position without starting the engine. Then, press the gas pedal three times within five seconds. After that, turn the ignition off and then back on to complete the reset. The maintenance light should now be turned off.
paps, try 3280 monterosport code for 4x2 glsv 2012 year model or up.
Look at the upper end of the brake pedal under dash area
To give you the required instructions to reset the maintenance interval the chassi number is required.
After repairing the cause of the code, you clear the code with a scan tool.
maintenance with engine