Two-Speed Rear Axle Electric Shift Control - GMC T-Series 2007 Owner's Manual

Two-Speed Rear Axle Electric Shift
Control
The switch is located on the center console
between the driver's and passenger's seats.
See Instrument Panel Overview on page 100 for
more information.
While the switch is up, the rear axle is in the high
range. Push it down to get the low range.
To operate off-road or under a heavy load, shift
into low range while the vehicle is standing still and
then operate the transmission normally.
On the highway, with the rear axle in low range
and the transmission in top gear, you can shift
the rear axle to high range by raising the switch
and releasing the accelerator momentarily.
Reapply the accelerator after you shift.
Under light load conditions, first shift the rear axle
into the high range with the vehicle at a standstill
and then operate the transmission normally.
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