Jump Starting - GMC T-Series 2007 Owner's Manual

Jump Starting

If your vehicle's batteries have run down, you may
want to use another vehicle and some jumper
cables to start your vehicle. Be sure to use
the following steps to do it safely.
CAUTION:
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Batteries can hurt you. They can be
dangerous because:
•
They contain acid that can burn you.
•
They contain gas that can explode or
ignite.
•
They contain enough electricity to
burn you.
If you do not 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 would
not be covered by your warranty.
236
Trying to start your vehicle by pushing or
pulling it will not work, and it could damage
your vehicle.
1. Check the other vehicle. It must have a
12-volt battery (or batteries) with a negative
ground system.
Notice: If the other vehicle's system is not
a 12-volt system with a negative ground, both
vehicles can be damaged. Only use vehicles
with 12-volt systems with negative grounds to
jump start your vehicle.
In diesel engine vehicles with two batteries,
you may not be able to get enough power from
a single battery in another vehicle to start
your diesel engine, especially in cold weather.
Use the battery closest to the starter — this
will reduce electrical resistance.
2. Get the vehicles close enough so the jumper
cables can reach, but be sure the vehicles are
not touching each other. If they are, it could
cause a ground connection you do not want.
You would not be able to start your vehicle, and
the bad grounding could damage the electrical
systems.