Automatic Transmission Operation - GMC 2007 Sierra 1500 Pickup Owner's Manual

3. Plug it into a normal, grounded 110-volt AC
outlet.
CAUTION:
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Plugging the cord into an ungrounded
outlet could cause an electrical shock.
Also, the wrong kind of extension cord
could overheat and cause a fire. You
could be seriously injured. Plug the cord
into a properly grounded three-prong
110-volt AC outlet. If the cord will not
reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it
away from moving engine parts. If you do
not, it could be damaged.
How long should you keep the coolant heater
plugged in? The answer depends on the outside
temperature, the kind of oil you have, and
some other things. Instead of trying to list
everything here, we ask that you contact your
140
dealer in the area where you will be parking your
vehicle. The dealer can give you the best
advice for that particular area.

Automatic Transmission Operation

If your vehicle has an automatic transmission,
it features an electronic shift position indicator
within the instrument panel cluster. This display
must be powered anytime the shift lever is moved
out of PARK (P). See Fuses and Circuit Breakers
on page 600.
There are several different positions for your shift
lever.
Automatic Transmission