Bit of routine maintenance - checking pressures and fluids. Decided to change the air filter and clean out a few dried leaves and a dandelion seed from the air box. Was surprised how clean the filter was but as I was there, changed it anyway. Changed comfort indicators to 4 flashes which was fine but it somehow reset my door locking settings to unlock all doors and not to fold mirrors on lock. Strange they reset but easy to put them back how I wanted them.