The most common complaint from professional car reviewers about the Subaru Outback is the lack of power from its available engines. In addition, some owners of older models report problems with hesitation during acceleration as well as premature clutch failures, according to the car repair statistics website CarComplaints.com.
Most reviewers of the 2015 Subaru Outback find that the base 2.5-liter four-cylinder engine in the car feels weak, as reported by US News & World Report. While adequate for most purposes, the engine struggles to propel the Outback on hills. Optional engines are more powerful than the base four-cylinder, but these engines still do not have the performance of the engines available in some competitors' models.
Common consumer complaints about the most recent models of the Subaru Outback concern hesitations during acceleration, possibly related to the lack of power reported by professional reviewers. Owners of older Subaru Outback models have experienced transmission problems, the most common of these being premature clutch failure. This issue is most prevalent in the 2005 model year. Few issues with the automatic or continuously variable transmissions used in the Outback have been reported, so these transmission issues appear to be isolated to cars fitted with manual transmissions