10. GMC Sierra
Model Years: 1998-Present
Avg. Repair Costs: $714/Year*
The GMC Sierra exploded onto the scene in 1998, and it hasn’t looked back. The full-size truck is currently among the best-selling pickup trucks in America, having sold about 12 million units in the country. With a reliability rating of 3.5 out of 5, Sierra ranked fifth out of 17 full-size trucks that were evaluated by RepairPal.

Shutterstock/Beto Rodriguez’s GMC Sierra
The yearly maintenance cost of a Sierra is $714, which is more than average. This, together with the 30% likelihood that an overhaul will be required for the Sierra during the first ten years of ownership, makes it appear somewhat less appealing to consumers looking to purchase a new full-size vehicle.
