Pontiac Aztek 2003 Owner's Manual page 320

Notice: If the other system isn't a 12-volt system
with a negative ground, both vehicles can be
damaged.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren't touching
each other. If they are, it could cause a ground
connection you don't want. You wouldn't be able to
start your vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump starting procedure. Put an automatic
transaxle in PARK (P) or a manual transaxle
in NEUTRAL before setting the parking brake.
Notice: If you leave your radio on, it could be badly
damaged. The repairs wouldn't be covered by
your warranty.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or in the accessory power outlet(s). Turn
off the radios and all lamps that aren't needed. This
will avoid sparks and help save both batteries.
And it could save your radio!
5-40
4. Open the hoods and locate the batteries. Find the
positive (+) and negative (−) terminals on each
vehicle.
You will not need to access your battery for jump
starting. Your vehicle has a remote positive (+) jump
starting terminal for that purpose. The terminal is
located under a tethered cap at the front of the
underhood fuse and relay center. See Engine
Compartment Overview on page 5-10 for more
information on location.
Flip the cap up to access the remote positive (+)
terminal. You should always use the remote
positive (+) terminal instead of the positive (+)
terminal on the battery.
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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.