Two problems related to radiator have been reported for the 2011 Buick Enclave. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Buick Enclave based on all problems reported for the 2011 Enclave.
My regularly serviced 2011 Buick Enclave with approximately 75,000 miles on it began overheating last summer to the point when turning off the engine the radiator fan kept running. My servicing business was continually adding the recommended radiator coolant in amounts that totaled 3. 7 gal. Between mid June, '18 to sept '19. I was told by the dealer the radiator holds 14. 2 qts of coolant which is 3. 5 gal. So it lost over its total capacity. It did the same overheating with the radiator fan running after the vehicle was turned off this past summer. There is a recall 13091 on this issue of a leaky water pump for 2008-2010 Buick Enclaves as well as similar years for traverses, acadias, and outlook on hfv6 engines (ly7,llt) I was told that gm did not change the faulty water pump until 2013 on the Buick Enclaves. The car showed no error message of overheating or low coolant on the display panel. This is a safety issue. If the water pumps goes out while driving it could cause the engine to blow with a possible engine fire, unsafe for driver and passengers.
The contact owns a 2011 Buick Enclave. The contact stated that while driving 50 mph, the vehicle began to overheat. He then discovered that engine antifreeze was leaking all over the engine and hood because the fans were still operating. The vehicle was towed to the dealer who diagnosed that the radiator was puncture and needed to be replaced. The manufacturer was made aware of the failure who did not offer any assistance. The VIN was not available. The vehicle was repaired. The failure mileage was 10,000 and the current mileage was 11,000.