2004 Cadillac XLR

The 2004 model year represents the launch of the XLR generation and carries the heaviest federal burden in the dataset, with 34 complaints and 5 recalls that significantly exceed the 9 complaints and single recall recorded by 2006, and far surpass the minimal 1–3 complaints seen from 2007 through 2009. While 2005 remains similarly elevated with 31 complaints and 3 recalls, the data reveals a consistent maturation trend wherein complaint and recall frequency drop sharply after the first two model years, with 2004 and 2005 being the only years to trigger federal investigations. Conversely, Technical Service Bulletins actually rise steadily across the generation from 571 in 2004 to 966 by 2009, indicating that service protocols improved even as initial manufacturing issues subsided. The 2004 model logged 2 crash-related complaints and zero fire complaints, with Structure cited most frequently among the nine categorized grievances, though the data does not specify root causes. Given its position as the debut year with the highest recall count and complaint frequency before the marked reliability improvements of 2006 onward, this is not the strongest year to buy unless the purchase price reflects its first-year teething status.