I would be furious if one of my cars cost that much on average, and I’d be trying to sell it as fast as possible.
For reference, my (now sold) 1997 Taurus didn’t cost me one cent in repairs until it was 6 years old, and even then it racked up only about $400 in repairs total over its first 11 years. Years 12-14 got a bit more expensive, but never over $600 in a year. I don’t expect the bills to be that low, but they should not be high at all for a 5 1/2 year old car.
In terms of maintenance, I always overdid it, but even at the dealer’s high prices, you really shouldn’t be averaging over $500-600 a year in maintenance costs, with the exception of years when you need new tires.