One problem related to tank assembly has been reported for the 2009 Buick Enclave. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Buick Enclave based on all problems reported for the 2009 Enclave.
A 18 wheelers tire tread was in the road. I straddled it to avoid a wreck. The tread punctured the front of my plastic gas tank resulting in a gas leak. I had to pay for a new tank and installation. There isn't a protective shield on the front of tank.