18 MERCEDES-BENZ GL
The Mercedes-Benz GL was first launched in 2006. It was meant to compete in the luxury SUV segment, though many observers felt it was late to the party. According to Wikipedia, it was the first German 3-row 7-passenger vehicle to be available in the United States.
According to Repair Pal, one of the most common problems with the Mercedes-Benz GL is that the shifting starts to get rough after only a few years of use. The brake pads and rotors are made of soft materials and will need replacing after roughly every 10,000 miles. Another problem that has been reported by several owners of the car on Repair Pal is oil leakage from the vent housing. The car doesn’t come cheap even for a used one, which is another reason why you should probably avoid it.
17 DODGE NITRO
The Dodge Nitro was on the assembly line from 2007 until 2012. According to Wikipedia, the Nitro shared the same platform with the Dodge Liberty. Jalopnik noted that the Dodge Nitro shared a couple of crippling problems with some of its Chrysler cousins.
The two major problems with the vehicle are an underwhelming interior and a below par powertrain. Under the hood is a 3.7-liter V6 engine which can produce up to 210HP. The first year was great for the car, as Dodge was able to sell 70,000 units, but sales started dropping by 20,000 every year until it was no longer viable to produce the car.