How to reset warning service light on a Volvo V40 made in: 1999, 2000, 2001, 2002, 2003, 2004, 2005.
If you want to turn off the maintenance indicator follow this steps.
With ignition on off position.
Press and hold down the trip reset button, see below picture.
Turn the ignition key, to position two without starting the engine.
Push and hold the odometer button until exclamation mark starts blinking.
Release the button.
Now you will hear a sound (a beep) that let you know that you have successfully managed to reset service light indicator on your Volvo V40 I.