The 1st generation of the Rainier has a cumulative PainRank™ of 2.8. That can be compared against other Buick generations. Shopping for a Buick? So far, so good. But there are some warning signs to watch for.
Owners of the 2004–2007 Rainier model years have sent in 40 complaints on CarComplaints.com. We've listed the three most common below. Most are about the suspension (20%) followed by the interior (17%) and the electrical (17%).