One problem related to tank assembly has been reported for the 2007 Buick Rendezvous. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Buick Rendezvous based on all problems reported for the 2007 Rendezvous.
I read the article about gm's possible faulty fuel gauge issue in the 4/30/2011 newspaper. I have a 2007 Buick rendevous cxl purchased as a gm certified used car from a local gm dealer. The fuel gauge wanders by 1/4 of a tank. While under warranty, I have been to several dealers about this problem about 5-or 6 times total and they have installed a new sender/gauge, reprogrammed the computer, updated the software and it still acts the same way. It is very annoying and I must always keep it above half full so I don't run out of gas. I was finally told by a service manager that they have had several complaints about the wandering gauge but it can't be fixed and I must just live with it. I am now out of warranty for this problem and am "living with it" until I sell it and buy another car, probably next year. I feel the Buick rendevous should be added to the list of problem vehicles.