This is from a previous reply of mine to this question and a suggestion from "dwolsten."
Do you want to turn it off? it's pretty easy to do this.
First, this is just a basic reminder that the car may need to be serviced in the near future. Depending on how you've sticked to the recommended services, you should be fine.
First, turn the key to the ignition position (the maintenance light should be on)
Next, feel along the panel below the steering column. on the right hand side there is a "button". It's square in shape and is a switch that you can push in. You hold the switch in until you see the "maintenance" light go out. that's all there is to it.
This question sure comes up here a lot. Here's some more info about it:
The light flashes on start-up after 6000 miles, and after 7500 miles stays lit continuously. The stupid thing here is: who waits til 7500 miles to change their oil? So using this light as a reminder isn't terribly bright; you should be keeping track of the actual number of miles between oil changes.
The light is reset as others have described, but personally, I think it's a pain having to constantly reset it when it serves absolutely no useful purpose, so I simply disconnected it and removed it. No, this will not affect any other part of your car, so if you're tired of that useless light, feel free to do the same with no worry.
