Chevrolet Sonic problems by year
1,242 complaints across 4 model years, 2012–2015. 2012 draws the most at 519; 2015 the fewest at 171.
Read this first
Complaint volume tracks how many cars were sold as much as how reliable they were. A popular model year will always look worse than a rare one. Compare the dominant failure system between years rather than the raw totals.