Parking - GMC TopKick 2007 Owner's Manual

Excessively shifting the transfer case into or out of
the different modes can cause the transfer case
to enter the shift protection mode. This protects the
transfer case from possible damage and only
allows the transfer case to respond to one shift per
10 seconds. The transfer case can stay in this
mode for up to three minutes.

Parking

CAUTION:
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If you do not park your vehicle properly, it
can roll. If you have left the engine
running, it can move very quickly. You or
others could be injured. To be sure your
vehicle will not move, even when you are
on level ground, follow the steps below.
Parking a Vehicle With the Two-Speed
Rear Axle
1. With the engine running, shift the two-speed
rear axle into low. To be sure it is in low, you
will need to move the vehicle in gear just a little.
2. Hold the regular brake pedal down with your
right foot.
3. Apply the parking brake.
4. Shift the transmission to NEUTRAL for
manual transmission or PARK (P) for
automatic transmission.
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