To reset Maintenance light, switch key to on position, do not start. Press select and reset buttons at same time for about 15 to 20 seconds, then switch key off. If reset occured, the light will go off when you restart engine. If not, repeat process. Took three time for me.
HOLD down both the SELECT and RESET buttons on the right of instrument panels. Turn on the ignition and then after 10 seconds, release both SELECT and RESET buttons. It will turn the maintenance light off.
The check engine light for the 2001 Isuzu Rodeo often comes on because of a sensor that is damaged or malfunctioning. The most common sensor is an oxygen sensor and when reset, this often allows the light to be reset.
You can usually disconnect the battery cable for about 15 seconds and reconnect it to reset the engine light. Check the fuse box for a(red) resert button - to reset the engine light disconnect battery for 15 minutes , the red reset button on fuse panel is for motor oil change reminder reset