It’s hard to talk about rugged, off-road vehicles without mentioning the Hummer. Who doesn’t want a rugged off-roader with monstrous proportions and military aspirations? However, many of you will agree that Hummers are some of the most polarizing vehicles available. When people shop for this popular off-roader, one of the most common questions is: are Hummers reliable? If you’re planning to buy a used Hummer, one of your primary concerns is probably its reliability.