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When you’re shopping for a new car, you can’t trust all the ads you see on TV or online. Each automaker is going to tout its biggest benefits and go hard at its competitors’ flaws. So who can you really trust when deciding on your next car? Fellow drivers who already own the car you’re considering. That’s how Consumer Reports gathered the data for its 2018 Annual Auto Survey. Using responses on over 500,000 vehicles, it ranked the most and least reliable cars of the year. Coming in dead last: the Ram 3500. The rankings for least reliable car were determined by studying 17 trouble areas ranging from squeaky brakes to major out-of-warranty repairs. The Ram 3500 earned its place as the least reliable due to buyers’ issues with its steering and suspension, fuel and emissions system, engine cooling, and annoying noises and leaks. Look out for these 14 signs your car is about to die. Ram Trucks wasn’t the only American car manufacturer to make the list. In fact, six of the ten least reliable vehicles are American made, four of which were manufactured by General Motors. Buyers reported trouble with transmission, in-car electronics, climate system, fuel and emissions system, and even the engine in the General Motors vehicles. Honda was the only other manufacturer to appear more than once on the list; it accounted for two. Here is the full list of the 10 least reliable cars of 2018, counting down to the worst: 10. Honda Odyssey 9. Volkswagen Atlas 8. Buick Enclave 7. Chevrolet Silverado 2500 HD 6. Kia Cadenza 5. Chevrolet Traverse 4. Honda Clarity 3. Cadillac ATS 2. Tesla Model X 1. Ram 3500 So if you’re in the market for a new vehicle, you’d be wise to avoid these makes and models. And for those who already own any car on this list, never fear. Regardless of what you drive, all drivers can benefit from these 74 maintenance tips that will extend the life of your car.