I hope it's nothing serious (random)
Usually service reminder lights are solid and stay on until the service has been performed, though, and flashing usually means something more important that wouldn't be disregarded by the computer after the engine revs.
I'm going to get an oil change before work tomorrow (I have a coupon for a $20 oil change at Midas and they open at 7:30 AM but close at 6:00 PM) and I guess if that doesn't clear it up I'll have to take it to the dealership, where they'll charge me a fuckton for it and find some reason to consider my extended warranty null and void (since I didn't get the N-monthly service on a car which hadn't been driven in those N months, or whatever, and of course they had strongarmed me into getting the extended warranty which I didn't want to begin with because car dealers are assholes).
(The way they did that was when I bought the car, it was during a Labor Day sale and I opted for the special 3.5% APY financing deal. But the particular car I wanted wasn't available right away; they only had automatic transmissions available, so I had to order a car which was scheduled to go to another dealership, and in order to qualify for the financing I had to lock in the loan then and there. They never even asked if I wanted the extended warranty. A week later when the car arrived and I got the final loan paperwork, they had tacked on the extended warranty. I told them I didn't want it. They said that the extended warranty was absolutely vital, and anyway the loan was already drawn up for the warranty and if I didn't get the warranty then they'd have to draw up a new loan, so I'd lose the 3.5% APY. And I couldn't back out because then I'd lose my deposit. Maybe I should have reported them to the BBB? Meh.)
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I hadn't ever heard of a maintenance light just blinking for 10 seconds and going out though.