Buick 2008 Lucerne Owner's Manual page 317

Notice: If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered
by your warranty. Always turn off your radio and
other accessories when jump starting your vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlet(s). Turn off
the radio and all lamps that are not needed. This will
avoid sparks and help save both batteries. And it
could save the radio!
4. Open the hood on the other vehicle and locate the
positive (+) and negative (−) terminal locations on
that vehicle.
You will not see the battery of your vehicle under
the hood. It is located under the rear passenger's
seat. You will not need to access the battery
for jump starting. The remote positive (+) terminal is
for that purpose. See Engine Compartment
Overview on page 5-12 for location.
Access the remote positive (+) terminal by removing
the cover.
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.
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