The National Highway Transportation Safety Administration is investigating older Volvo XC90 models for potential faulty electronics that could cause the headlights and turn signals to fail. So far, the government isn't aware of any crashes resulting from the fault, but 21 owners have filed a complaint. The defect manifests itself on 2004-2005 XC90 SUVs, and NHTSA says that 93,487 vehicles are potentially impacted by the problem.

Fortunately, should the NHTSA issue a recall, the problem is a relatively easy fix. Regulators say that simply replacing a bad control module is enough to set everything working again. So far, there are no reports of similar problems occurring in any other Volvo models of similar vintage, but you can bet your eyes that the NHTSA will be taking a closer look at the company's line up from four years ago just to make sure.