Automatic Transmission Operation; Park (P) - GMC SIERRA 1998 Manual

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Automatic Transmission Operation
I
There are several different positions for your shift lever.
If your vehicle is equipped with an automatic
transmission, it now features an electronic shift position
indicator within the instrument cluster. This display
must be powered anytime the shift lever is capable of
being moved out of PARK (P). This means that if your
key is in OFF, rather than LOCK, there will be a small
current drain on your battery which could discharge
your battery over a period of time. If you have to leave
your key in the ignition in OFF for an extended period,
it is recommended that you disconnect the battery cable
from the battery to prevent discharging your battery.
PARK (P): This locks your rear wheels. It's the best
position to use when you start your engine because your
vehicle can't move easily.
It is dangerous to get out
of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don't leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle won't move, even when you're on fairly
level ground, always set your parking brake and
move the shift lever to PARK
(P).
If you have four-wheel drive, your vehicle will be
free to roll
--
even if your shift lever is in
PARK (P)
--
if your transfer case is in
NEUTRAL (N). So, be sure the transfer case is in
a drive gear, two-wheel high (2H) or four-wheel
high (4H) or four-wheel low (4L)
--
not in
NEUTRAL (N). See "Shifting Into PARK (P)" in
the Index. If you're pulling a trailer, see "Towing
a Trailer" in the Index.
2-15

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