Jump Starting - GMC Yukon XL Denali 2005 Owner's Manual

Vehicle Storage
If you are not going to drive your vehicle for 25 days
or more, remove the black, negative (−) cable from
the battery. This will help keep your battery from
running down.
CAUTION:
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Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
are not careful. See Jump Starting on
page 5-42 for tips on working around a battery
without getting hurt.
Also, for your audio system, see Theft-Deterrent
Feature on page 3-99.
5-42

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 use the following steps to do it safely.
CAUTION:
{
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.