How to reset maintanence light - 2010 Subaru Outback

You need an OBDII scanner that will find the code and the option to reset the code. If the code (meaning maintenance light) comes back on then you need to get it fixed. AWD cars/crossovers/etch. Have a TON of electronics and extra components like electronic locking differentials or mechanical (nickname is "diff" ) diffs
. On the Outback the system is on all the time, and it has a Haldex differential that sends more power to the wheels with grip. There are a ton of things that can go wrong with a complex system.... but the main cause is electronic in nature. Also, simple things like replacing 2 tires and having the other two nearly bald will cues the wheels to rotate at slightly different speeds. The system can't handle that friction and stress for long and you can blow the AWD system mechanically.. All tires must be replaced at the same time or very, very nearly the same time. Go to AutoZone and they will check that light for you for free, and may even reset it for free or nearly free low-bucks. Good Luck. The Outback is a great car and will last a long time if you take care of her! -Chris