Jump Starting - Hummer 2003 H2 Owner's Manual

Jump Starting

If your battery has run down, you may want to use
another vehicle and some jumper cables to start your
vehicle. Be sure to following the steps below to do it
safely.
CAUTION:
Batteries can hurt you. They can be dangerous
because:
D
They contain acid that can burn you.
D
They contain gas that can explode or ignite.
D
They contain enough electricity to burn you.
If you don't follow these steps exactly, some or all
of these things can hurt you.
NOTICE:
Ignoring these steps could result in costly damage
to your vehicle that wouldn't be covered by your
warranty.
The ACDelco R battery in your vehicle has a
-
built in hydrometer. Do not charge, test or jump
start the battery if the hydrometer looks clear or
light yellow. Replace the battery when there is a
clear or light yellow hydrometer and a cranking
complaint.
Trying to start your vehicle by pushing or pulling
it won't work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12
battery with a negative ground system.
NOTICE:
If the other system isn't a 12
negative ground, both vehicles can be damaged.
-
volt
-
volt system with a
5-3