Chevrolet 2007 Silverado, Owner'S Manual

Page: 171 / 688

Leaving Your Vehicle With the Engine
Running
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CAUTION:
It can be dangerous to leave your vehicle
with the engine running. Your vehicle
could move suddenly if the shift lever is
not fully in PARK (P) with the parking
brake firmly set.
If you have four-wheel drive and your
transfer case is in NEUTRAL, your vehicle
will be free to roll, even if your shift lever
is in PARK (P). So be sure the transfer
case is in a drive gear — not in NEUTRAL.
And, if you leave the vehicle with the
engine running, it could overheat and
even catch fire. You or others could be
injured. Do not leave your vehicle with
the engine running unless you have to.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P)
and the parking brake is firmly set before
you leave it. After you move the shift lever into
PARK (P), hold the regular brake pedal down.
Then, see if you can move the shift lever away
from PARK (P) without first pulling it toward you.
If you can, it means that the shift lever was
not fully locked into PARK (P).
Torque Lock
If you are parking on a hill and you do not shift your
transmission into PARK (P) properly, the weight of
the vehicle may put too much force on the parking
pawl in the transmission. You may find it difficult to
pull the shift lever out of PARK (P). This is called
torque lock. To prevent torque lock, set the parking
brake and then shift into PARK (P) properly before
you leave the driver’s seat. To find out how, see
Shifting Into Park (P) on page 170.
When you are ready to drive, move the shift lever
out of PARK (P) before you release the parking
brake.
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