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Your 2011 Chevrolet Cruze has two temperature sensors positioned on the radiator, one on the driver's side and one on the passenger's side. Although these sensors are a bit tricky to access, they are secured with spring clips. By unclipping and disconnecting them from the harness, you can easily replace them. An AC Delco sensor can be purchased from O'Reilly's for approximately $13, which should be the only part you need. Common issues to address include engine overheating and an excessively loud fan operation, both of which may trigger diagnostic trouble codes from the onboard computer related to these sensors' conditions.
The 2011 Chevy Cruze is equipped with a coolant temperature sensor that can be found on the right-hand side of the radiator.