I bought the Blazer when it was 4 years old and had 64000 miles. It ran good, but within one month, I brought it in for a new exhaust system, o2 sensor, fuel injection system, and transmission issues. Since then, I have brought it to the dealership on three different occassions which needed to have other mechanical parts replaced. No major issues but many minor problematic parts have had to be replaced. Buy an extended warranty if you get one because these will use it up. Otherwise, the SUV rides decent and has always been dependable as it always starts and has never leaked fluid.
Heated leather seats with the LT trim are excellent in the cold of winter. Also has driver info display which is good for determining mileage and when to fill up.
Suspension weak, constantly needs to be fixed. Terrible gas mileage.
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