Where is the access panel for fuel pump on a 2007 Buick rendezvous?

The access panel for the fuel pump on a 2007 Buick Rendezvous is located under the rear seat. To access it, you need to lift the rear seat cushion, which can often be removed by pulling it up or unscrewing bolts, depending on the configuration. Once the cushion is out of the way, you will find the access panel that allows you to reach the fuel pump without dropping the fuel tank.