Buick 2008 Allure Owner's Manual page 310

4. Open the hood on the other vehicle and locate the
positive (+) and negative (−) terminal locations on
that vehicle.
You will not use your vehicle's battery for jump
starting. It has a remote positive (+) jump starting
terminal, located on the underhood fuse block,
for that purpose. See Engine Compartment
Overview on page 5-12 for more information
on location.
3.8L V6 Engine shown,
3.6L V6 Engine
similar
5-50
If your vehicle has a
V6 engine, to uncover
the remote positive (+)
terminal, press the tab at
the bottom of the fuse
block and lift the cover up.
Always use the remote positive (+) terminal instead
of the positive (+) terminal on the battery.
5.3L Engine
If your vehicle has the
5.3L V8 engine, to uncover
the remote positive (+)
terminal, remove the fuse
block cover.