GMC 2012 Sierra Series Owner's Manual page 493

procedure. Put the automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking brake.
If you have a four-wheel-drive
vehicle, be sure the transfer
case is in a drive gear, not in
Neutral.
Notice: If any accessories are left
on or plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible,
turn off or unplug all accessories
on either vehicle when jump
starting the vehicle.
4. Turn off the ignition on both
vehicles. Unplug unnecessary
accessories plugged into the
cigarette lighter or the accessory
power outlets. Turn off the radio
and all the lamps that are not
needed. This will avoid sparks
and help save both batteries.
And it could save the radio!
5. Open the hood on the other
vehicle and locate the
positive (+) and negative ( )
terminal locations on that
vehicle.
The positive (+) terminal, is
located under a red plastic cover
at the positive battery post. To
uncover the positive (+) terminal,
open the red plastic cover.
If your vehicle has a gasoline
engine, the remote negative (-)
terminal is a stud located on the
I n f o r ma t i o n P r o v i d e d b y :
Vehicle Care
right front of the engine, where
the negative battery cable
attaches.
If your vehicle has a diesel
engine, the remote negative (-)
terminal is the negative (-) post
on the auxiliary battery on the
driver side of the engine
compartment.
For more information on the
location of the remote
positive (+) and remote
negative ( ) terminals, see
Engine Compartment Overview
on page 10 6
WARNING
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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