The recall is due to a software programming error in the fan control module for the engine cooling fan that may cause it to stop working. This can reduce air-conditioner performance and possibly even cause the engine to fail in a worst-case scenario, increasing the risk of an accident.
Dealers will replace the fan control module with a new one for free. Owners may contact Volvo at 800-458-1552 or the NHTSA vehicle safety hotline at 888-327-4236.