The engine computer is programed to shut off the fuel system under certain conditions. The software has been determined to be too sensitive and may cause the engine to stall under normal driving conditions. This recall involves updating the software in the engine and transmission control modules to correct this condition.
 
Recalls
Recalls are issued for cars with safety-related defects or problems
2011 Volvo XC70
The Engine May Stall Du to ECM Software Concern
Exhaust & Emissions, November 17, 2010