While the Nissan Frontier has been a popular midsize pickup truck, there have been some model years that garnered complaints due to major problems. One such year is the 2005 Nissan Frontier, which faced issues with the transmission and radiator failures leading to coolant mixing with transmission fluid. This problem resulted in significant transmission damage and costly repairs. Another problematic year is the 2011 Nissan Frontier, which experienced similar transmission issues, causing concerns among owners. Additionally, the 2006 model year faced complaints about premature radiator failures. Potential buyers should exercise caution with these specific model years, carefully inspecting the vehicle's history and maintenance records to avoid potential headaches associated with these major problems. To learn more interesting facts about the Nissan Frontier visit autonationx.com.