2006 Pontiac Montana SV6 Owner's Manual - Page 346

If your vehicle has the 3.5L V6 engine, the terminal is located under a tethered cap at the front of the underhood fuse block. Squeeze the tabs and swing the cap out of the way to access the remote positive (+) terminal. 3.5L V6 Engine If your vehicle has the 3.9L V6 engine, the terminal is located under the fuse block cover. Remove the cover to access the remote positive (+) terminal. See Engine Compartment Overview on page 5-12 for more information on the location of the remote positive (+) terminals. You should always use the remote positive (+) terminal instead of the positive (+) terminal on your battery. {CAUTION: An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan. 3.9L V6 Engine 5-42